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A Health Organizations
Alphabetical
National & International
- Aarskog Syndrome Support Group (ASSG) - United Kingdom (UK)
- ABLEDATA - Source for Assistive Technology Information
- Aboriginal Healing Foundation (AHF) - Canada (CA)
- Aboriginal Nurses Association of Canada (ANAC) - Canada (CA)
- Abortion Access Project (AAP)
- AboutFace International - info & support for individuals with facial disfigurements
- AboutFace USA - info & support for individuals with facial disfigurements
- Abstinence Clearinghouse - A non-profit national educational organization
- Abstinence The Better Choice (ABC) - Drugs, alcohol and premarital sex
- Academic Orthopaedic Society (AOS)
- Academy for Eating Disorders (AED)
- Academy for Health & Productivity Measurement (AHPM)
- Academy for Infection Management (AIM)
- Academy for International Health Studies (AIHS)
- Academy for Sports Dentistry (ASD)
- Academy for the Study of the Psychoanalytic Arts
- Academy of Ambulatory Foot and Ankle Surgery (AAFAS)
- Academy of Aphasia
- Academy of Behavioral Medicine Research (ABMR)
- Academy of Behavioral Profiling (ABP)
- Academy of Breastfeeding Medicine (ABM)
- Academy of Chinese Culture and Health Sciences (ACCHS)
- Academy of Clinical Laboratory Physicians and Scientists (ACLPS)
- Academy of Clinical Psychology (ACP)
- Academy of Cognitive Therapy (ACT)
- Academy of Correctional Health Professionals (ACHP)
- Academy of Counseling Psychology (ACoP)
- Academy of Dental Materials (ADM)
- Academy of Dental Sleep Medicine (ADSM)
- Academy of Dentistry International (ADI)
- Academy of Dispensing Audiologists (ADA)
- Academy of General Dentistry (AGD)
- Academy of GP Orthodontics (AGpO)
- Academy of Laser Dentistry (ALD)
- Academy of Managed Care Pharmacy (AMCP)
- Academy of Managed Care Providers (AMCP)
- Academy of Medical Royal Colleges (AOMRC) - United Kingdom (UK)
- Academy of Medical-Surgical Nurses (AMSN)
- Academy of Medicine of Malaysia - Malaysia (MY)
- Academy of Molecular Imaging (AMI)
- Academy of Natural Therapy (ANT)
- Academy of Neurologic Communication Disorders and Sciences (ANCDS)
- Academy of Oral Surgery - Chalmers J. Lyons
- Academy of Organizational and Occupational Psychiatry (AOOP)
- Academy of Pharmaceutical Sciences (APS) - United Kingdom (UK)
- Academy of Prosthodontics (AP)
- Academy of Psychological Clinical Science (APCS)
- Academy of Psychosomatic Medicine (APM)
- Academy of Radiology Research (ARR)
- Academy of Rehabilitative Audiology (ARA)
- Academy of Surgical Research (ASR)
- Academy of Veterinary Dental Technicians (AVDT)
- Academy of Veterinary Dentistry (AVD)
- Academy of Veterinary Emergency & Critical Care Technicians (AVECCT)
- Academy of Veterinary Homeopathy (AVH)
- Academy of Veterinary Technician Anesthetists (AVTA)
- AcademyHealth - "Advancing Research, Policy and Practice"
- ACA Sports Council >> American Chiropractic Association (ACA)
- ACCESS - National Infertility Network - Australia (AU)
- Access Board, The - A federal agency committed to accessible design for people with disabilities.
- Accessibility Equipment Manufacturers Association (AEMA)
- Accreditation Association for Ambulatory Health Care (AAAHC)
- Accreditation Commission for Acupuncture and Oriental Medicine (ACAOM)
- Accreditation Council for Continuing Medical Education (ACCME)
- Accreditation Council for Graduate Medical Education (ACGME)
- Accreditation Review Commission on Education for the Physician Assistant (ARC-PA)
- Accreditation Review Committee on Education in Surgical Technology (ARC-ST)
- Achromatopsia Group, The - rare hereditary vision disorder
- Achromatopsia Network - rare hereditary vision disorder
- Acid Maltase Deficiency Association (AMDA) - rare genetic disorder
- ACNM Certification Council (ACC) - Midwifery - United States
- Acoustic Neuroma Association (ANA) US
- Acoustic Neuroma Association of Australasia (ANAA) - Australia (AU)
- Acoustic Neuroma Association of Canada (ANAC) - Canada (CA)
- Actinic Keratosis Society (AKS) a skin lesion
- Action for Autism (AFA) - India (IN)
- Action for Blind People (ABP) - United Kingdom (UK)
- Action for Dystonia, Diagnosis, Education & Research (ADDER) - United Kingdom (UK)
- Action for Myalgic Encephalomyelitis (AFME) - United Kingdom (UK)
- Action on Addiction (AonA) - medical research charity that funds research into substance addiction. United Kingdom (UK)
- Action on Elder Abuse (AEA) - United Kingdom (UK)
- Action on Pain (AOP) - United Kingdom (UK)
- Action on Smoking and Health (ASH)
- Action on Smoking and Health (ASH) Australia - Australia (AU)
- Active Living Coalition for Older Adults (ALCOA) - Canada (CA)
- Active Pharmaceutical Ingredients Committee (APIC) - European
- Acupuncture and Oriental Medicine Alliance (AOMA)
- Acupuncture and Oriental Medicine National Coalition (AOMNC)
- Acupuncture Foundation (AF) - Ireland (IE)
- Acupuncture Foundation of Canada Institute (AFCI) - Canada (CA)
- Acute Respiratory Distress Syndrome (ARDS) Foundation
- Adaptive Environments (AE) - Disabilities, educational, non-profit, organization
- ADARA: Professionals Networking for Excellence in Service Delivery with Individuals who are Deaf or Hard of Hearing
- AdCare Educational Institute - Substance Abuse
- Addiction Intervention Association (AIA) - Canada (CA)
- Addiction Studies Program for Journalists
- Addiction Technology Transfer Center (ATTC)
- Addiction Treatment Watchdog (ATW)
- Administration on Aging (AoA) - US Government
- Administrators of Internal Medicine (AIM)
- Adolescent Substance Abuse Counseling Service (ASACS) - US Military Overseas
- Adolescent Wellness and Reproductive Education Foundation (The AWARE Foundation)
- Adult Children of Alcoholics - World Service Organization
- Adult Dyslexia Organisation (ADO) - United Kingdom (UK)
- Advanced Medical Technology Association (AdvaMed)
- Adverse Psychiatric Reactions Information Link (APRIL) - Drug side effects - United Kingdom (UK)
- Advice and Counselling on Alcohol and Drugs (ACAD) - United Kingdom (UK)
- Advocates for Highway and Auto Safety
- Advocates for Recovery through Medicine (ARM)
- Advocates for Youth - reproductive and sexual health
- Advocates for the Integration of Recovery and Methadone (AFIRM)
- AdvocateWeb (AW) - Professional sexual misconduct; sexual and emotional exploitation of clients by trusted helping professionals.
- Aerobics and Fitness Association of America (AFAA)
- Aerospace Medical Association (ASMA)
- African American Association of Fitness Professionals (AAAFP)
- African American Breast Cancer Alliance (AABCA)
- African American PostTraumatic Stress Disorder Association (AAPTSDA)
- African Medical & Research Foundation (AMREF)
- African Population and Health Research Center (APHRC)
- Afro-Asian Council of Ophthalmology (AACO)
- Against Breast Cancer (ABC) - United Kingdom (UK)
- Age Concern New Zealand - New Zealand (NZ)
- Aged and Community Services Australia (ACSA) - Australia (AU)
- Agency for Health Care Policy and Research (AHCPR) - US Government
- Agency for Healthcare Research and Quality (AHRQ) - US Government
- Agency for Toxic Substances and Disease Registry (ATSDR) - US Government
- Agoraphobia Australia (AA) - Australia (AU)
- Agoraphobics Building Independent Lives (ABIL)
- Aicardi Syndrome Foundation (ASF) - rare disorder
- AIDS Concern - Hong Kong (HK)
- AIDS Education and Training Centers (AETC) National Resource Center (NRC)
- AIDS Education Global Information System (AEGIS)
- AIDS Foundation of South Africa, The - South African (ZA)
- AIDS Pastoral Care Network (APCN)
- Air & Surface Transport Nurses Association (ASTNA) - aka National Flight Nurses
- Air Force Audiology Association (AFAA)
- Air Medical Physician Association (AMPA)
- Air Medical Safety Advisory Council (AMSAC)
- AirLifeLine - free air transportation for people in financial need
- AKC Canine Health Foundation
- Alagille Syndrome Alliance (AGA) - rare genetic disorder
- Alan Guttmacher Institute, The - sexual and reproductive health
- Albert Hofmann Foundation - Pro Drug
- Albinism Fellowship - United Kingdom (UK)
- Alcohol Advisory Council of New Zealand (ALAC) - New Zealand (NZ)
- Alcohol & Drug Abuse Institute (ADAI) at the University of Washington
- Alcohol and Drug Concerns (ADC)
- Alcohol and Drug Problems Association of North America (ADPA)
- Alcohol and Drug Recovery Association of Ontario (ADRAO) - Canada (CA)
- Alcohol and Other Drugs Council of Australia (ADCA) - Australia (AU)
- Alcohol and Temperance History Group (ATHG)
- Alcohol Beverage Medical Research Foundation (ABMRF)
- Alcohol Education and Research Council (AERC)
- Alcohol Focus Scotland (AFS)
- Alcohol in Moderation (AIM) - United Kingdom (UK)
- Alcohol Policies Project (APP) - CSPI
- Alcohol Policy Network (APN) - Canada (CA)
- Alcohol Research Center (ARC) at the Louisiana State University Health Sciences Center
- Alcohol Research Center (ARC) at the University of Connecticut School of Medicine
- Alcohol Research Group and National Alcohol Research Center
- Alcohol Research Mentoring System (ARMS) National Institute on Alcohol Abuse and Alcoholism
- Alcoholic Beverage Medical Research Foundation (ABMRF)
- Alcoholics Anonymous (AA)
- Alcoholics Victorious (AV) - recovering people who recognize Jesus Christ as their "Higher Power"
- Adrenoleukodystrophy Foundation (ALD Foundation)
- Alison Hunter Memorial Foundation (AHMF) Myalgic Encephalopathy/Chronic Fatigue Syndrome (ME/CFS)
- All India Biotech Association (AIBA) - India (IN)
- All India Chess Federation for the Blind (AICFB) - India (IN)
- All India Ophthalmological Society (AIOS) - India (IN)
- Allan Vincent Smith Foundation (AVSF) - AIDS & HIV - Bermuda (BM)
- Allergy/Asthma Information Association (AAIA) - Canada (CA)
- Allergy & Asthma Network Mothers of Asthmatics (AANMA)
- Allergy Society of South Africa (ALLSA) - South Africa (ZA)
- Allergy UK - United Kingdom (UK)
- Alexander Graham Bell Association for the Deaf and Hard of Hearing
- Alliance for Academic Internal Medicine (AAIM)
- Alliance for Aging Research (AAR)
- Alliance for Better Foods (ABF)
- Alliance for Bio-Integrity - Genetically engineered foods
- Alliance for Cancer Gene Therapy (ACGT)
- Alliance for Cervical Cancer Prevention (ACCP)
- Alliance for Children and Families
- Alliance for Health Reform
- Alliance for Lung Cancer Advocacy, Support, and Education (ALCASE)
- Alliance for Psychosocial Nursing (APN)
- Alliance for Technology Access (ATA) - Assistive Technology Advocates
- Alliance for the Prudent Use of Antibiotics (APUA)
- Alliance of Medical Student Educators in Radiology (AMSER)
- Alliance of Minority Medical Associations (AMMA)
- Alpha-1 Advocacy Alliance (A1AA) - genetic disorder that can cause liver and lung disease
- Alpha-1 Association - genetic disorder that can cause liver and lung disease
- Alpha-1 Foundation - genetic disorder that can cause liver and lung disease
- Alpha Omega International Dental Fraternity (AW)
- ALS Association (ALSA)
- ALS Society of Canada - Canadian (CA)
- Alström Syndrome International (ASI)
- Alström Syndrome UK - United Kingdom (UK)
- Alternative Medicine Foundation (AMF)
- Alveolar Capillary Dysplasia Association (ACDA)
- Alzheimer Europe (AE) - Europe (EU)
- Alzheimer Society of Canada - Canada (CA)
- Alzheimer's Association
- Alzheimer's Association in Israel - Israel (IL)
- Alzheimer's Australia - Australia (AU)
- Alzheimer's Disease Education & Referral Center (ADEAR)
- Alzheimer's Disease International (ADI)
- Alzheimer's Foundation of America (AFA)
- Alzheimer's Foundation of the South
- Alzheimer's Prevention Foundation International (APF)
- Alzheimer's Research Foundation (ARF)
- Alzheimer's Society - United Kingdom (UK)
- Ambulance Service Association (ASA) - United Kingdom (UK)
- Ambulance Service Union (ASU) - United Kingdom (UK)
- Ambulatory Pediatric Association (APA)
- AMD Alliance International - age-related macular degeneration (AMD)
- American Academy for Cerebral Palsy and Developmental Medicine (AACPDM)
- American Academy of Addiction Psychiatry (AAAP)
- American Academy of Allergy Asthma and Immunology (AAAAI)
- American Academy of Ambulatory Care Nursing (AAACN)
- American Academy of Anesthesiologist Assistants (AAAA)
- American Academy of Audiology (AAA)
- American Academy of Behavioral Psychology (AABP)
- American Academy of Child & Adolescent Psychiatry (AACAP)
- American Academy of Chiropractic Physicians (AACP)
- American Academy of Clinical Neurophysiology (AACN)
- American Academy of Clinical Neuropsychology (AACN)
- American Academy of Clinical Psychiatrists (AACP)
- American Academy of Clinical Psychology (AACP)
- American Academy of Clinical Sexologists (AACS)
- American Academy of Clinical Toxicology (AACT)
- American Academy of Cosmetic Dentistry (AACD)
- American Academy of Cosmetic Surgery (AACS)
- American Academy of Craniofacial Pain (AACFP)
- American Academy of Dental Practice Administration (AADPA)
- American Academy of Dermatology (AAD)
- American Academy of Dermatology Association (AADA)
- American Academy of Disability Evaluating Physicians (AADEP)
- American Academy of Emergency Medicine (AAEM)
- American Academy of Environmental Medicine (AAEM)
- American Academy of Esthetic Dentistry (AAED)
- American Academy of Experts in Traumatic Stress (AAETS)
- American Academy of Facial Plastic and Reconstructive Surgery
- American Academy of Family Physicians (AAFP)
- American Academy of Fixed Prosthodontics (AAFP)
- American Academy of Forensic Psychology (AAFP)
- American Academy of Group Psychology (AAGP)
- American Academy of Health Care Providers in the Addictive Disorders
- American Academy of Health Physics (AAHP)
- American Academy of Hospice and Palliative Medicine (AAHPM)
- American Academy of Implant Dentistry (AAID)
- American Academy of Insurance Medicine (AAIM)
- American Academy of Maxillofacial Prosthetics (AAMP)
- American Academy of Medical Acupuncture (AAMA)
- American Academy of Medical Administrators (AAMA)
- American Academy of Medical Hypnoanalysis (AAMH)
- American Academy of Micropigmentation (AAM)
- American Academy of Nephrology Physician Assistants (AANPA)
- American Academy of Neurological and Orthopaedic Surgeons (AANOS)
- American Academy of Neurology (AAN)
- American Academy of Nurse Practitioners (AANP)
- American Academy of Nursing (AAN)
- American Academy of Ophthalmology (AAO)
- American Academy of Optometry (AAO)
- American Academy of Oral and Maxillofacial Pathology (AAOMP)
- American Academy of Oral and Maxillofacial Radiology (AAOMR)
- American Academy of Oral Medicine (AAOM)
- American Academy of Orthopaedic Surgeons (AAOS)
- American Academy of Orthopedic Manual Physical Therapists (AAOMPT)
- American Academy of Orthotists & Prosthetists (AAOP)
- American Academy of Osteopathy (AAO)
- American Academy of Otolaryngic Allergy (AAOA)
- American Academy of Otolaryngology - Head and Neck Surgery
- American Academy of Pain Management (AAPM)
- American Academy of Pain Medicine (AAPM)
- American Academy of Pediatric Dentistry (AAPD)
- American Academy of Pediatrics (AAP)
- American Academy of Periodontology (AAP)
- American Academy of Pharmaceutical Physicians (AAPP)
- American Academy of Physical Medicine & Rehabilitation (AAPM&R)
- American Academy of Physician Assistants in Allergy, Asthma, and Immunology (AAPA-AAI)
- American Academy of Physician Assistants in Occupational Medicine (AAPA-OM)
- American Academy of Podiatric Practice Management (AAPPM)
- American Academy of Podiatric Sports Medicine (AAPSM)
- American Academy of Private Practice in Speech Pathology and Audiology (AAPPSPA)
- American Academy of Professional Coders (AAPC)
- American Academy of Psychiatry and the Law (AAPL)
- American Academy of Psychoanalysis and Dynamic Psychiatry (AAPDP)
- American Academy of Reflexology (AAR)
- American Academy of Restorative Dentistry (AARD)
- American Academy of School Psychology (AASP)
- American Academy of Sleep Medicine (AASM)
- American Academy of Veterinary Acupuncture (AAVA)
- American Academy of Veterinary Medical Acupuncture (AAVMA)
- American Academy of Veterinary Pharmacology & Therapeutics (AAVPT)
- American Academy of Wound Management (AAWM)
- American Academy on Physician and Patient (AAPP)
- American Accreditation HealthCare Commission aka URAC
- American Action Fund for Blind Children and Adults (AAFBCA)
- American Alliance for Health, Physical Education, Recreation and Dance (AAHPERD)
- American Alliance for Medical Cannabis (AAMC)
- American Alliance of Cancer Pain Initiatives (AACPI)
- American Alternative Medical Association (AAMA)
- American Alternative Medicine Certification Association (AAMCA)
- American Ambulance Association (AAA)
- American Animal Hospital Association (AAHA)
- American Anti-Vivisection Society (AAVS)
- American Art Therapy Association (AATA)
- American Assembly for Men in Nursing (AAMN)
- American Assisted Living Nurses Association (AALNA)
- American Association for Accreditation of Ambulatory Surgery Facilities (AAAASF)
- American Association for Active Lifestyles & Fitness (AAALF)
- American Association for Cancer Research (AACR)
- American Association for Chronic Fatigue Syndrome (AACFS)
- American Association for Clinical Chemistry (AACC)
- American Association for Correctional Psychology (AACP)
- American Association for Dental Research (AADR)
- American Association for Emergency Psychiatry (AAEP)
- American Association for Geriatric Psychiatry (AAGP)
- American Association for Health Education (AAHE)
- American Association for Health Freedom (AAHF)
- American Association for Homecare (AAH)
- American Association for Klinefelter Syndrome Information and Support (AAKSIS)
- American Association for Laboratory Animal Science (AALAS)
- American Association for Long-Term Care Insurance (AALTCI)
- American Association for Marriage and Family Therapy (AAMFT)
- American Association for Medical Transcription (AAMT)
- American Association for Pediatric Ophthalmology and Strabismus (AAPOS)
- American Association for Respiratory Care (AARC)
- American Association for Thoracic Surgery (AATS)
- American Association for Vascular Surgery (AAVS)
- American Association for Women Podiatrists (AAWP)
- American Association for Women Radiologists (AAWR)
- American Association for the Abolition of Drug Testing (AAADT)
- American Association for the Advancement of Science (AAAS)
- American Association for the History of Medicine (AAHM)
- American Association for the History of Nursing (AAHN)
- American Association for the Study of Liver Diseases (AASLD)
- American Association for the Surgery of Trauma (AAST)
- American Association for the Treatment of Opioid Dependence (AATOD)
- American Association of Academic Chief Residents in Radiology (A3CR2)
- American Association of Ambulatory Surgery Centers (AAASC)
- American Association of Anatomists (AAA)
- American Association of Avian Pathologists (AAAP)
- American Association of Bioanalysts (AAB)
- American Association of Blood Banks (AABB)
- American Association of Bovine Practitioners (AABP)
- American Association of Cardiovascular and Pulmonary Rehabilitation (AACVPR)
- American Association of Certified Orthoptists (AACO)
- American Association of Chairs of Departments of Psychiatry (AACDP)
- American Association of Children's Residential Centers (AACRC) - Mental Health
- American Association of Christian Counselors (AACC)
- American Association of Christian Therapists (AACT)
- American Association of Clinical Anatomists (AACA)
- American Association of Clinical Chemistry (AACC)
- American Association of Clinical Endocrinologists (AACE)
- American Association of Clinical Urologists (AACU)
- American Association of Colleges of Nursing (AACN)
- American Association of Colleges of Osteopathic Medicine (AACOM)
- American Association of Colleges of Pharmacy (AACP)
- American Association of Colleges of Podiatric Medicine (AACPM)
- American Association of Community Psychiatrists (AACP)
- American Association of Critical Care Nurses (AACN)
- American Association of Dental Radiographic Technicians (AADMRT)
- American Association of Diabetes Educators (AADE)
- American Association of Directors of Psychiatric Residency Training (AADPRT)
- American Association of Electrodiagnostic Medicine (AAEM)
- American Association of Endocrine Surgeons (AAES)
- American Association of Endodontists (AAE)
- American Association of Equine Practitioners (AAEP)
- American Association of Feline Practitioners (AAFP)
- American Association of Food Hygiene Veterinarians (AAFHV)
- American Association of Gynecologic Laparoscopists (AAGL)
- American Association of Health Care Administrative Management (AAHAM)
- American Association of Health Plans (AAHP)
- American Association of Healthcare Consultants (AAHC)
- American Association of Hip and Knee Surgeons (AAHKS)
- American Association of Homes and Services for the Aging (AAHSA)
- American Association of Hospital and Healthcare Podiatrists (AAHHP)
- American Association of Immunologists (AAI)
- American Association of Integrated Healthcare Delivery Systems (AAIHDS)
- American Association of Kidney Patients (AAKP)
- American Association of Legal Nurse Consultants (AALNC)
- American Association of Lifestyle Counselors (AALC)
- American Association of Managed Care Nurses (AAMCN)
- American Association of Medical Assistants (AAMA)
- American Association of Medical Colleges (AAMC)
- American Association of Medical Dosimetrists (AAMD) - Radiation oncology
- American Association of Medical Review Officers (AAMRO)
- American Association of Medical Society Executives (AAMSE)
- American Association of Multiple Enchondroma Diseases (AAMED)
- American Association of Naturopathic Physicians (AANP)
- American Association of Neurological Surgeons (AANS)
- American Association of Neuropathologists (AANP)
- American Association of Neuroscience Nurses (AANN)
- American Association of Nurse Anesthetists (AANA)
- American Association of Nurse Assessment Coordinators (AANAC)
- American Association of Nurse Attorneys, The (TAANA)
- American Association of Nurse Life Care Planners (AANLCP)
- American Association of Occupational Health Nurses (AAOHN)
- American Association of Office Nurses (AAON)
- American Association of Ophthalmic Pathologists (AAOP)
- American Association of Oral and Maxillofacial Surgeons (AAOMS)
- American Association of Oriental Medicine (AAOM)
- American Association of Orthodontists (AAO)
- American Association of Orthopaedic Surgeons (AAOS)
- American Association of Pastoral Counselors (AAPC)
- American Association of Pathologists' Assistants (AAPA)
- American Association of People with Disabilities (AAPD)
- American Association of Periodontology (AAP)
- American Association of Pharmaceutical Scientists (AAPS)
- American Association of Pharmacy Technicians (AAPT)
- American Association of Physician Specialists (AAPS)
- American Association of Physicians of Indian Origin (AAPI)
- American Association of Physicists in Medicine (AAPM)
- American Association of Poison Control Centers (AAPCC)
- American Association of Preferred Provider Organizations (AAPPO)
- American Association of Professional Ringside Physicians (AAPRP)
- American Association of Psychiatric Administrators (AAPA)
- American Association of Public Health Dentistry (AAPHD)
- American Association of Public Health Physicians (AAPHP)
- American Association of Safety Councils (AASC)
- American Association of Senior Peer Counseling (AASPC)
- American Association of Sex Educators, Counselors, and Therapists (AASECT)
- American Association of Small Ruminant Practitioners (AASRP)
- American Association of Spinal Cord Injury Nurses (AASCIN)
- American Association of Spinal Cord Injury Psychologists and Social Workers (ASCIPSW)
- American Association of State Compensation Insurance Funds (AASCIF)
- American Association of State Counseling Boards (AASCB)
- American Association of Suicidology (AAS)
- American Association of Surgical Physician Assistants (AASPA)
- American Association of Swine Veterinarians (AASV)
- American Association of Tissue Banks (AATB)
- American Association of Veterinary Anatomists (AAVA)
- American Association of Veterinary Parasitologists (AAVP)
- American Association of Veterinary State Boards (AAVSB)
- American Association of Wildlife Veterinarians (AAWV)
- American Association of Women Dentists (AAWD)
- American Association of Zoo Veterinarians (AAZV)
- American Association of the Deaf-Blind (AADB)
- American Association on Mental Retardation (AAMR)
- American Auditory Society (AAS)
- American Autoimmune Related Diseases Association (AARDA)
- American Back Society (ABS)
- American Bar Association Commission on Mental and Physical Disability Law
- American Behcet's Disease Association (ABDA) - rare disease
- American Beverage Licensees (ABL)
- American Biological Safety Association (ABSA)
- American Blind Skiing Foundation (ABSF)
- American Board for Certification in Orthotics and Prosthetics (ABC)
- American Board for Occupational Health Nurses (ABOHN)
- American Board of Allergy and Immunology (ABAI)
- American Board of Anesthesiology (ABA)
- American Board of Bariatric Medicine (ABBM)
- American Board of Bioanalysis (ABB)
- American Board of Cardiovascular Perfusion (ABCP)
- American Board of Clinical Neuropsychology (ABCN)
- American Board of Colon and Rectal Surgery (ABCRS)
- American Board of Dental Public Health (ABDPH)
- American Board of Dermatology (ABD)
- American Board of Emergency Medicine (ABEM)
- American Board of Endodontics (ABE)
- American Board of Examiners in Clinical Social Work (ABE)
- American Board of Eye Surgery (ABES)
- American Board of Facial Plastic and Reconstructive Surgery (ABFPRS)
- American Board of Family Practice (ABFP)
- American Board of Forensic Odontology (ABFO)
- American Board of Forensic Psychology (ABFP)
- American Board of General Dentistry (ABGD)
- American Board of Genetic Counseling (ABGC)
- American Board of Hospice and Palliative Medicine (ABHPM)
- American Board of Hospital Physicians
- American Board of Independent Medical Examiners (ABIME)
- American Board of Industrial Hygiene (ABIH)
- American Board of Internal Medicine (ABIM)
- American Board of Interventional Pain Management (ABIPM)
- American Board of Managed Care Medicine (ABMCM)
- American Board of Managed Care Nursing (ABMCN)
- American Board of Medical Genetics (ABMG)
- American Board of Medical Specialties (ABMS)
- American Board of Medicolegal Death Investigators (ABMDI)
- American Board of Mental Health Diagnostics (ABMHD)
- American Board of Neurological Surgery (ABNS)
- American Board of Nuclear Medicine (ABNM)
- American Board of Nursing Specialties (ABNS)
- American Board of Nutrition (ABN)
- American Board of Obstetrics and Gynecology (ABOG)
- American Board of Ophthalmology (ABO)
- American Board of Opticianry (ABO)
- American Board of Oral and Maxillofacial Pathology (ABOMP)
- American Board of Oral and Maxillofacial Radiology (ABOMR)
- American Board of Oral and Maxillofacial Surgery (ABOMS)
- American Board of Oral Implantology/Implant Dentistry (ABOI/ID)
- American Board of Orthodontics
- American Board of Orthopaedic Surgery (ABOS)
- American Board of Otolaryngology (ABOto)
- American Board of Pathology (ABP)
- American Board of Pediatric Dentistry (ABPD)
- American Board of Pediatric Neurological Surgery (ABPNS)
- American Board of Pediatrics (ABP)
- American Board of Periodontology (ABP)
- American Board of Physical Medicine and Rehabilitation (ABPMR)
- American Board of Physician Nutrition Specialists (ABPNS)
- American Board of Plastic Surgery (ABPS)
- American Board of Podiatric Surgery (ABPS)
- American Board of Preventive Medicine (ABPM)
- American Board of Professional Neuropsychology (ABPN)
- American Board of Professional Psychology (ABPP)
- American Board of Prosthodontics (ABP)
- American Board of Psychiatry and Neurology (ABPN)
- American Board of Quality Assurance and Utilization Review Physicians (ABQAURP)
- American Board of Radiology (ABR)
- American Board of Registration of Electroencephalographic and Evoked Potential Technologists (ABRET)
- American Board of Rehabilitation Psychology (ABRP)
- American Board of Reiki (ABR)
- American Board of School Neuropsychology (ABSNP)
- American Board of School Psychology (ABSP)
- American Board of Science in Nuclear Medicine (ABSNM)
- American Board of Sexology (ABS)
- American Board of Sleep Medicine (ABSM)
- American Board of Surgery (ABS)
- American Board of Thoracic Surgery (ABTS)
- American Board of Transplant Coordinators (ABTC)
- American Board of Urology (ABU)
- American Board of Veterinary Practitioners (ABVP)
- American Board of Veterinary Toxicology (ABVT)
- American Bone Marrow Donor Registry (ABMDR)
- American Botanical Council (ABC) - medicinal plants and phytomedicines
- American Brachytherapy Society (ABS)
- American Brain Tumor Association (ABTA)
- American Breast Cancer Foundation (ABCF)
- American Bronchoesophagological Association (ABEA)
- American Burn Association (ABA)
- American Cancer Society
- American Chiropractic Association (ACA)
- American Chiropractic Association (ACA) Council on Occupational Health
- American Chronic Pain Association (ACPA)
- American Cleft Palate-Craniofacial Association (ACPA)
- American Clinical Neurophysiology Society (ACNS)
- American College Counseling Association (ACCA)
- American College for Advancement in Medicine (ACAM)
- American College Health Association (ACHA)
- American College of Acupuncture (ACA)
- American College of Allergy, Asthma & Immunology (ACAAI)
- American College of Cardiology (ACC)
- American College of Cardiovascular Nursing (ACCN)
- American College of Certified Forensic Counselors (ACCFC)
- American College of Chest Physicians (ACCP)
- American College of Chiropractic Consultants (ACCC)
- American College of Chiropractic Orthopedists (ACCO)
- American College of Clinical Engineering (ACCE)
- American College of Clinical Pharmacology (ACCP)
- American College of Clinical Pharmacy (ACCP)
- American College of Dentists (ACD)
- American College of Emergency Physicians (ACEP)
- American College of Ethical Physicians
- American College of Eye Surgeons (ACES)
- American College of Foot and Ankle Orthopedics and Medicine (ACFOAM)
- American College of Foot and Ankle Surgeons (ACFAS)
- American College of Forensic Examiners International (ACFEI)
- American College of Forensic Psychiatry (ACFP)
- American College of Gastroenterology (ACG)
- Alcoholic Liver Disease
- American College of Health Care Administrators (ACHCA)
- American College of Healthcare Executives (ACHE)
- American College of Laboratory Animal Medicine (ACLAM)
- American College of Legal Medicine (ACLM)
- American College of Managed Care Medicine (ACMCM)
- American College of Medical Genetics (ACMG)
- American College of Medical Physics (ACMP)
- American College of Medical Toxicology (ACMT)
- American College of Medical Quality (ACMQ)
- American College of Mental Health Administration (ACMHA)
- American College of Neuropsychopharmacology (ACNP)
- American College of Nuclear Medicine (ACNM)
- American College of Nuclear Physicians (ACNP)
- American College of Nurse-Midwives (ACNM)
- American College of Nurse Practitioners (ACNP)
- American College of Nutrition (ACN)
- American College of Obstetricians and Gynecologists (ACOG)
- American College of Occupational and Environmental Medicine (ACOEM)
- American College of Oral and Maxillofacial Surgeons (ACOMS)
- American College of Osteopathic Emergency Physicians (ACOEP)
- American College of Osteopathic Family Physicians (ACOFP)
- American College of Osteopathic Internists (ACOI)
- American College of Osteopathic Obstetricians & Gynecologists (ACOOG)
- American College of Phlebology (ACP) - venous disorders
- American College of Physicians - American Society of Internal Medicine
- American College of Physician Executives (ACPE)
- American College of Poultry Veterinarians (ACPV)
- American College of Prehospital Medicine (ACPM)
- American College of Preventive Medicine (ACPM)
- American College of Prosthodontists (ACP)
- American College of Psychiatrists (ACP)
- American College of Radiation Oncology (ACRO)
- American College of Radiology (ACR)
- American College of Rheumatology (ACR)
- American College of Sports Medicine (ACSM)
- American College of Surgeons (ACS)
- American College of Surgeons Oncology Group (ACOSOG)
- American College of Theriogenologists (ACT)
- American College of Traditional Chinese Medicine (ACTCM)
- American College of Veterinary Anesthesiologists (ACVA)
- Amercian College of Veterinary Dermatology (ACVD)
- American College of Veterinary Emergency and Critical Care (ACVECC)
- American College of Veterinary Internal Medicine (ACVIM)
- American College of Veterinary Microbiologists (ACVM)
- American College of Veterinary Nutrition (ACVN)
- American College of Veterinary Ophthalmologists (ACVO)
- American College of Veterinary Pathologists (ACVP)
- American College of Veterinary Pharmacists (ACVP)
- American College of Veterinary Preventive Medicine (ACVPM)
- American College of Veterinary Radiology (ACVR)
- American College of Veterinary Surgeons (ACVS)
- American College of Zoological Medicine (ACZM)
- American Commission for Accreditation of Reflexology Education & Training (ACARET)
- American Conference of Governmental Industrial Hygienists (ACGIH)
- American Congress of Rehabilitation Medicine (ACRM)
- American Contact Dermatitis Society (ACDS)
- American Correctional Health Services Association (ACHSA)
- American Council for Drug Education (ACDE)
- American Council for Headache Education (ACHE)
- American Council of the Blind (ACB)
- American Council on Alcoholism (ACA) (800) 527-5344
- American Council on Exercise (ACE)
- American Council on Pharmaceutical Education (ACPE)
- American Council on Science and Health (ACSH)
- American Counseling Association (ACA)
- American Dance Therapy Association (ADTA)
- American Dental Assistants Association (ADAA)
- American Dental Association (ADA)
- American Dental Board of Anesthesiology (ADBA)
- American Dental Education Association (ADEA)
- American Dental Hygienists Association (ADHA)
- American Dental Society of Anesthesiology (ADSA)
- American Dental Trade Association (ADTA)
- American Diabetes Association
- American Dietetic Association (ADA)
- American Dietetic Association Foundation (ADAF)
- American Dietetic Association Political Action Committee (ADAPAC)
- American Disability Association (ADA)
- American Disability Representation Specialists Association (ADRSA)
- American Disabled for Attendant Programs Today (ADAPT)
- American Embryo Transfer Association (AETA)
- American Emergency Ultrasonographic Society (AEUS)
- American Endodontic Society (AES)
- American Epilepsy Society (AES)
- American Family Therapy Academy (AFTA)
- American Federation for Aging Research (AFAR)
- American Federation for Medical Research (AFMR)
- American Fibromyalgia Syndrome Association (AFSA)
- American Fire Sprinkler Association (AFSA)
- American Fitness Professionals & Associates (AFPA)
- American Foundation for Addiction Research (AFAR)
- American Foundation for Suicide Prevention (AFSP)
- American Foundation for the Blind (AFB)
- American Foundation for Urologic Disease (AFUD)
- American Foundation of Thyroid Patients (AFTP)
- American Frozen Food Institute (AFFI)
- American Gastroenterological Association (AGA)
- American Geriatrics Society (AGS)
- American Glaucoma Society (AGS)
- American Group Psychotherapy Association (AGPA)
- American Headache Society (AHS)
- American Head and Neck Society (AHNS)
- American Health Assistance Foundation (AHAF)
- American Health Care Association (AHCA) - Long term care
- American Healthcare Radiology Administrators (AHRA)
- American Health Lawyers Association (AHLA)
- American Health Information Management Association (AHIMA)
- American Health Quality Association (AHQA)
- American Heart Association (AHA)
- American Heartworm Society (AHS)
- American Hemochromatosis Society (AHS)
- American Hepato-Pancreato-Biliary Association (AHPBA)
- American Herbal Pharmacopoeia
- American Herbal Products Association (AHPA)
- American Hernia Society (AHS)
- American Herpes Foundation (AHF)
- American Holistic Health Association (AHHA)
- American Holistic Nurses Association (AHNA)
- American Hospice Foundation (AHF)
- American Hyperlexia Association (AHA)
- American Iatrogenic Association (AIA) - illness caused by medical personnel
- American Industrial Hygiene Association (AIHA)
- American Infertility Association (AIA)
- American Institute for Cancer Research (AICR)
- American Institute of Naturopathic Medicine (AINM)
- American Institute of Ultrasound in Medicine (AIUM)
- American Institute of the History of Pharmacy (AIHP)
- American Integrative Medical Association (AIMA)
- American International Acupuncture Institute (AIAI)
- American International Health Alliance (AIHA)
- American Joint Committee on Cancer (AJCC)
- American Kidney Fund (AKF)
- American Kinesiotherapy Association (AKTA)
- American Laryngeal Papilloma Foundation (ALPF)
- American Laryngological Association (ALA)
- American Laryngological, Rhinological and Otological Society (Triological Society)
- American Latex Allergy Association (ALAA)
- American Legacy Foundation (ALF) - Anti Smoking-Tobacco
- American Leprosy Foundation (ALF)
- American Leprosy Missions (ALM)
- American Lingual Orthodontics Association (ALOA)
- American Lithotripsy Society (ALS)
- American Liver Foundation (ALF)
- American Liver Society (ALS)
- American Long Term & Sub Acute Nurses Association (ALSNA)
- American Lung Association
- American Lyme Disease Foundation (ALDF)
- American Macular Degeneration Foundation (AMDF)
- American Managed Behavioral Healthcare Association (AMBHA)
- American Massage Therapy Association (AMTA)
- American Massage Therapy Association Foundation (AMTAF)
- American Medical Association (AMA)
- American Medical Directors Association (AMDA) - Long term care
- American Medical Group Association (AMGA)
- American Medical Informatics Association (AMIA)
- American Medical Publishers Association (AMPA)
- American Medical Rehabilitation Providers Association (AMRPA)
- American Medical Society for Sports Medicine (AMSSM)
- American Medical Specialty Organization (AMSO)
- American Medical Student Association (AMSA)
- American Medical Technologists (AMT)
- American Medical Women's Association (AMWA)
- American Melanoma Foundation (AMF) - Skin Cancer
- American Mental Health Counselors Association (AMHCA)
- American Music Therapy Association (AMTA)
- American Naprapathic Association (ANA)
- American Naturopathic Medical Association (ANMA)
- American Nephrology Nurses' Association (ANNA)
- American Neurological Association (ANA)
- American Neuropsychiatric Association (ANPA)
- American Nurses Association (ANA)
- American Nurses Credentialing Center (ANCC)
- American Nursing Informatics Association (ANIA)
- American Nutraceutical Association (ANA)
- American Nystagmus Network (ANN) - involuntary eye movement
- American Obesity Association (AOA)
- American Occupational Therapy Association (AOTA)
- American Occupational Therapy Foundation (AOTF)
- American Optometric Association (AOA)
- American Optometric Student Association (AOSA)
- American Organization for Bodywork Therapies of Asia (AOBTA)
- American Organization of Nurse Executives (AONE)
- American Orthopaedic Association (AOA)
- American Orthopaedic Foot and Ankle Society (AOFAS)
- American Orthopaedic Society for Sports Medicine (AOSSM)
- American Orthopsychiatric Association
- American Orthotic & Prosthetic Association (AOPA)
- American Osteopathic Academy of Orthopedics (AOAO)
- American Osteopathic Association (AOA)
- American Osteopathic Board of Family Physicians (AOBFP)
- American Osteopathic Board of Emergency Medicine (AOBEM)
- American Osteopathic College of Dermatology (AOCD)
- American Osteopathic College of Ophthalmology (AOCO)
- American Osteopathic College of Otolaryngology-Head and Neck Surgery (AOCO-HNS)
- American Osteopathic College of Radiology (AOCR)
- American Osteopathic Foundation (AOF)
- American Otological Society (AOS)
- American Overseas Dietetic Association (AODA)
- American Pain Foundation (APF)
- American Pain Society (APS)
- American Pancreatic Association (APA)
- American Paraplegia Society (APS)
- American Parkinson Disease Association (APDA)
- American Pathology Foundation (APF)
- American Pediatric Society (APS) - Society for Pediatric Research (SPR)
- American Pediatric Surgical Association (APSA)
- American Pediatric Surgical Nurses Association (APSNA)
- American Pharmaceutical Association - APhA
- American Physical Therapy Association (APTA)
- American Physiological Society (APS)
- American Podiatric Medical Association (APMA)
- American Podiatric Medical Specialties Board (APMSB)
- American Podiatric Medical Students Association (APMSA)
- American Porphyria Foundation (APF)
- American Printing House for the Blind (APH)
- American Probation and Parole Association (APPA)
- American Professional Practice Association (APPA)
- American Professional Society on the Abuse of Children (APSAC)
- American Professional Wound Care Association (APWCA)
- American Prosthodontic Society (APS)
- American Psychiatric Association (APA)
- American Psychiatric Foundation (APF)
- American Psychiatric Nurses Association (APNA)
- American Psycholoanalytic Association (APA)
- American Psychological Association (APA)
- American Psychological Association (APA Division 40) - Clinical Neuropsychology
- American Psychopathological Association (APPA)
- American Psychotherapy & Medical Hypnosis Association (APMHA)
- American Public Health Association (APHA)
- American Public Human Services Association (APHSA)
- American Qigong Association (AQA)
- American Radiological Nurses Association (ARNA)
- American Radium Society (ARS)
- American Red Cross
- American Reflexology Certification Board (ARCB)
- American Registry of Diagnostic Medical Songraphers (ARDMS)
- American Registry of Radiologic Technologists (ARRT)
- American Rehabilitation Counseling Association (ARCA)
- American Rhinologic Society (ARS)
- American Roentgen Ray Society (ARRS)
- American Safety & Health Institute (ASHI)
- American School Counselor Association (ASCA)
- American School Health Association (ASHA)
- American Senior Fitness Association (SFA)
- American Shoulder and Elbow Surgeons (ASES)
- American Sickle Cell Anemia Association (ASCAA)
- American Skin Association (ASA)
- American Sleep Apnea Association (ASAA)
- American Social Health Association (ASHA)
- American Society for Adolescent Psychiatry (ASAP)
- American Society for Aesthetic Plastic Surgery (ASAPS)
- American Society for Apheresis (ASFH)
- American Society for Artificial Internal Organs (ASAIO)
- American Society for Automation in Pharmacy (ASAP)
- American Society for Bariatric Surgery (ASBS)
- American Society for Bariatric Surgery (ASBS) Foundation
- American Society for Bone and Mineral Research (ASBMR)
- American Society for Cell Biology (ASCB)
- American Society for Clinical Investigation (ASCI)
- American Society for Clinical Laboratory Science (ASCLS)
- American Society for Clinical Nutrition (ASCN)
- American Society for Clinical Pathology (ASCP)
- American Society for Clinical Pharmacology and Therapeutics (ASCPT)
- American Society for Colposcopy and Cervical Pathology (ASCCP)
- American Society for Deaf Children (ASDC)
- American Society for Dental Aesthetics (ASDA)
- American Society for Dermatologic Surgery (ASDS)
- American Society for Experimental NeuroTherapeutics (ASENT)
- American Society for Gastrointestinal Endoscopy (ASGE)
- American Society for Healthcare Central Service Professionals (ASHCSP) Management
- American Society for Healthcare Engineering (ASHE)
- American Society for Healthcare Environmental Services (ASHES)
- American Society for Healthcare Food Service Administration (ASHFSA)
- American Society for Healthcare Human Resources Administrators (ASHHRA)
- American Society for Healthcare Risk Management (ASHRM)
- American Society for Histocompatibility and Immunogenetics (ASHI)
- American Society for Investigative Pathology (ASIP)
- American Society for Laser Medicine and Surgery (ASLMS)
- American Society for Microbiology (ASM)
- American Society for Neural Transplantation and Repair (ASNTR)
- American Society for Neurochemistry (ASN)
- American Society for Nutritional Sciences (ASNS)
- American Society for Parenteral and Enteral Nutrition (ASPEN)
- American Society for Pharmacology and Experimental Therapeutics (ASPET)
- American Society for Pharmacy Law (ASPL)
- American Society for Reconstructive Microsurgery (ASRM)
- American Society for Reproductive Immunology (ASRI)
- American Society for Reproductive Medicine (ASRM)
- American Society for Surgery of the Hand
- American Society for Therapeutic Radiology and Oncology (ASTRO)
- American Society for Veterinary Clinical Pathology (ASVCP)
- American Society for the Prevention of Cruelty to Animals (ASPCA)
- American Society of Abdominal Surgeons
- American Society of Addiction Medicine (ASAM)
- American Society of Alternative Therapists (ASAT)
- American Society of Andrology (ASA)
- American Society of Anesthesia Technologists and Technicians (ASATT)
- American Society of Anesthesiologists (ASA)
- American Society of Bariatric Physicians (ASBP)
- American Society of Breast Disease (ASBD)
- American Society of Breast Surgeons (ASBS)
- American Society of Cataract and Refractive Surgery (ASCRS)
- American Society of Clinic Radiologists (ASCR)
- American Society of Clinical Oncology (ASCO)
- American Society of Clinical Psychopharmacology (ASCP)
- American Society of Colon and Rectal Surgeons (ASCRS)
- American Society of Consultant Pharmacists (ASCP)
- American Society of Critical Care Anesthesiologists (ASCCA)
- American Society of Cytopathology (ASC)
- American Society of Dentist Anesthesiologists (ASDA)
- American Society of Dermatology (ASD)
- American Society of Dermatopathology (ASDP)
- American Society of Diagnostic and Interventional Nephrology (ASDIN)
- American Society of Directors of Volunteer Services (ASDVS)
- American Society of Echocardiography (ASE)
- American Society of Electroneurodiagnostic Technologists (ASET)
- American Society of Emergency Radiology (ASER)
- American Society of Exercise Physiologists (ASEP)
- American Society of Extra-Corporeal Technology
- American Society of General Surgeons (ASGS)
- American Society of Gene Therapy (ASGT)
- American Society of Group Psychotherapy and Psychodrama (ASGPP)
- American Society of Hand Therapists (ASHT)
- American Society of Head and Neck Radiology (ASHNR)
- American Society of Health-System Pharmacists (ASHP)
- American Society of Hematology (ASH)
- American Society of Human Genetics (ASHG)
- American Society of Hypertension (ASH)
- American Society of Indian Anesthesiologists (ASIA)
- American Society of Internal Medicine (ASIM)
- American Society of Interventional & Therapeutic Neuroradiology (ASITN)
- American Society of Interventional Pain Physicians (ASIPP)
- American Society of Law, Medicine and Ethics (ASLME)
- American Society of Lymphology (ASL)
- American Society of Maxillofacial Surgeons (ASMS)
- American Society of Nephrology (ASN)
- American Society of Neuroimaging (ASN)
- American Society of Neurophysiological Monitoring (ASNM)
- American Society of Neuroradiology (ASNR)
- American Society of Neurorehabilitation (ASNR)
- American Society of Nuclear Cardiology (ASNC)
- American Society of Ocularists (ASO) - Artificial eyes
- American Society of Ophthalmic Administrators (ASOA)
- American Society of Ophthalmic Plastic and Reconstructive Surgery (ASOPRS)
- American Society of Ophthalmic Registered Nurses (ASORN)
- American Society of Orthopaedic Physician's Assistants (ASOPA)
- American Society of Pain Management Nurses (ASPMN)
- American Society of Parasitologists (ASP)
- American Society of Pediatric Hematology/Oncology (ASPH/O)
- American Society of Pediatric Nephrology (ASPN)
- American Society of Pediatric Neuroradiology (ASPNR)
- American Society of Pediatric Otolaryngology (ASPO)
- American Society of PeriAnesthesia Nurses (ASPAN)
- American Society of Pharmacognosy (ASP)
- American Society of Plastic and Reconstructive Surgeons
- American Society of Plastic Surgical Nurses (ASPSN)
- American Society of Podiatric Medical Assistants (ASPMA)
- American Society of Psychoanalytic Physicians (ASPP)
- American Society of Radiologic Technologists (ASRT)
- American Society of Regional Anesthesia and Pain Medicine (ASRA)
- American Society of Retina Specialists (ASRS) - "The Vitreous Society"
- American Society of Safety Engineers (ASSE)
- American Society of Spine Radiology (ASSR)
- American Society of Temporomandibular Joint Surgeons (ASTMJS)
- American Society of Transplantation (AST)
- American Society of Transplant Surgeons (ASTS)
- American Society of Tropical Medicine and Hygiene (ASTMH)
- American Society of Veterinary Dental Technicians (ASVDT)
- American Society on Aging (ASA)
- American Sociological Association
- American Speech-Language-Hearing Association (ASHA)
- American Speech-Language-Hearing Association Foundation (ASHA Foundation)
- American Spinal Injury Association (ASIA)
- American Spinal Research Organization (ASRO)
- American Sports Medicine Institute (ASMI)
- American Stroke Association (ASA)
- American Student Dental Association (ASDA)
- American Sudden Infant Death Syndrome Institute
- American Sun Protection Association (ASPA) - has been dissolved
- American Surgical Hospital Association (ASHA)
- American Syringomyelia Alliance Project (ASAP) - chronic disorder involving the spinal cord
- American Telemedicine Association (ATA)
- American Therapeutic Recreation Association (ATRA)
- American Thoracic Society (ATS)
- American Thrombosis Association (ATA)
- American Thyroid Association (ATA)
- American Tinnitus Association (ATA)
- American Trauma Society (ATS)
- American Union of Chinese Medical Specialists (AUCMS)
- American Urogynecologic Society (AUGS)
- American Urological Association (AUA)
- American Uveitis Society (AUS) - inflammatory eye diseases
- American Vascular Association (AVA)
- American Veterinary Assistants Association (AVAA)
- American Veterinary Chiropractic Association (AVCA)
- American Veterinary Dental College (AVDC)
- American Veterinary Dental Society (AVDS)
- American Veterinary Medical Association (AVMA)
- American Veterinary Medical Foundation (AVMF)
- American Veterinary Medical History Society (AVMHS)
- American Veterinary Society of Animal Behavior (AVSAB)
- American Water Works Association (AWWA)
- American Wheelchair Bowling Association (AWBA)
- Americans Discuss Health
- Americans for Better Care of the Dying (ABCD)
- Americans for Long-Term Care Security (ALTCS)
- Americans for Medical Progress (AMP) - Medical Research vs. Animal Rights
- Americans for Safe Access (ASA) - Medical Marijuana
- Americans with Disabilities Act Technical Assistance Program (ADATA)
- America's Athletes with Disabilities (AAD)
- America's Blood Centers
- Americas-Group - Disabilities & employment
- Americas Section of the International Society for Respiratory Protection (ISRP)
- Amputee Coalition of America (ACA)
- Amputee Resource Foundation of America (ARFA)
- Amsterdam Institute for Addiction Research (AIAR)
- Amyotrophic Lateral Sclerosis (ALS) Association
- Anaerobe Society of the Americas (ASA)
- Anaesthetic Research Society (ARS) - United Kingdom (UK)
- Anesthesia Foundation, The
- Anesthesia History Association (AHA) www.anesthesia-history.org/
- Anesthesia Patient Safety Foundation (APSF)
- Angelman Syndrome Foundation (ASF)
- Angelman Syndrome Support, Education and Research Trust (ASSERT) - United Kingdom (UK)
- Angiogenesis Foundation - growth of new blood vessels
- Angioma Alliance (AA)
- Anglo-French Medical Society - United Kingdom (UK) Organization
- Animal and Plant Health Inspection Service (APHIS) US Government
- Animal Behavior Society (ABS)
- Animal Cancer Foundation (ACF)
- Animal Health Australia - Australia (AU)
- Animal Health Information Specialists (AHIS) - United Kingdom (UK) & Ireland (IE)
- Animal Health Institute (AHI) - trade association of animal health products manufacturers
- Animal Health Trust (AHT) - United Kingdom (UK)
- Animal Medicines Training Regulatory Authority (AMTRA) - United Kingdom (UK)
- Animal Poison Control Center (APCC)
- Anorexia Nervosa and Related Eating Disorders (ANRED)
- Anorexics Anonymous
- Anthroposophical Nurses Association of America (ANAA)
- Antitrust Coalition for Consumer Choice in Health Care (ACCC-HC)
- Anxiety Disorders Association of America (ADAA)
- Anxiety Network Australia (ANA) - Australia (AU)
- Aplastic Anemia & MDS International Foundation
- Applied Science and Analysis (ASA) - nuclear, biological and chemical (NBC) warfare related organization
- Applied Vision Association (AVA)
- Ara Parseghian Medical Research Foundation (APMRF) - Niemann-Pick Type C disease
- Arab-American Pharmacy Students Association (AAPHA)
- Arc of the United States, The - Cognitive, intellectual, and developmental disabilities
- Arium Foundation - Fetal Alcohol Syndrome Prevention
- Armed Forces Institute of Pathology (AFIP)
- Armed Forces Optometric Society (AFOS)
- Aromatherapy and Allied Practitioners' Association (AAPA) - United Kingdom (UK)
- Aromatherapy Registration Council (ARC)
- Aromatherapy Statutory Regulation Group (ASRG) - United Kingdom (UK)
- Arrestee Drug Abuse Monitoring (ADAM) Program - National Institute of Justice
- Art Therapy Credentials Board (ATCB)
- Arthritis Care - United Kingdom (UK) "empowering people with arthritis"
- Arthritis Foundation
- Arthritis Foundation of Australia - Australia (AU)
- Arthritis Research Campaign (ARC) - United Kingdom (UK)
- Arthritis Society, The - Canada (CA)
- Arthroscopy Association of North America (AANA)
- ASA Kids - a support group for those dealing with Argininosuccinic Aciduria.
- Asbestos Veterans Assistance Information League (AVAIL)
- Asia & Oceania Thyroid Association (AOTA)
- Asia Pacific Dental Federation (APDF)
- Asia Pacific Health Economics Network (APHEN)
- Asia Pacific Hospice Palliative Care Network (APHN)
- Asia Pacific Society for Impotence Research (APSIR)
- Asian and Oceanic Society for Paediatric Radiology (AOSPR)
- Asian & Pacific Islander American Health Forum (APIAHF)
- Asian Food Information Centre (AFIC)
- Asian-Oceanian Society of Neuroradiology and Head & Neck Radiology (AOSNHNR)
- Asian Oceanic Society for IntraVenous Anaesthesia (AOSIVA)
- Asian Pacific American Medical Student Association (APAMSA)
- Asian-Pacific Orthodontic Society (APOS)
- Asian-Pacific Osteoporosis Foundation (APOF)
- Asian Pacific Partners for Empowerment and Leadership (APPEAL) {Anti Tobacco-Smoking}
- Asian Section of International Society for Respiratory Protection (ISRP)
- Asian Society for Cardiovascular Surgery (ASCVS)
- Asian Society for Emergency Medicine (ASEM)
- Asian Society of Endourology (ASE)
- Asian Task Force Against Domestic Violence (ATFADV)
- Asperger Syndrome Association of Ireland (ASPIRE) - Ireland (IE)
- Asperger Syndrome Coalition of the United States (ASC-US)
- Assisted Living Federation of America (ALFA)
- Assistive Technology Industry Association (ATIA) - Disabilities
- Association Europe Acupuncture (AEA)
- Association for Academic Surgery (AAS)
- Association for Advanced Training in The Behavioral Sciences (AATBS)
- Association for Advancement of Behavior Therapy (AABT)
- Association for Ambulatory Behavioral Healthcare (AABH)
- Association for Applied and Therapeutic Humor (AATH)
- Association for Applied Psychophysiology and Biofeedback (AAPB)
- Association for Assessment and Accreditation of Laboratory Animal Care (AAALAC)
- Association for Assessment in Counseling and Education (AACE)
- Association for Birth Psychology (ABS)
- Association for Child Psychoanalysis (ACP)
- Association for Children with a Disability (ACD) - Australia (AU)
- Association for Children with Down Syndrome (ACDS)
- Association for Children with Heart Disorders, The (TACHD) - United Kingdom (UK)
- Association for Children with Life-Threatening Illnesses (ACT) - United Kingdom (UK)
- Association for Clinical Data Management (ACDM) - United Kingdom (UK)
- Association for Common European Nursing Diagnoses, Interventions and Outcomes (ACENDIO)
- Association for Community Organization and Social Administration (ACOSA)
- Association for Community Health Improvement (ACHI)
- Association for Comprehensive NeuroTherapy (ACN)
- Association for Contemporary Dental Education (ACDE)
- Association for Continence Advice (ACA) - United Kingdom (UK)
- Association for Continuing Dental Education (ACDE)
- Association for Counselor Education and Supervision (ACES)
- Association for Death Education and Counseling (ADEC)
- Association for Dental Education in Europe (ADEE)
- Association for Dietetics in South Africa (ADSA) - South Africa (ZA)
- Association for Driver Rehabilitation Specialists (ADED)
- Association for Education and Rehabilitation of the Blind and Visually Impaired (AER)
- Association for Electronic Health Care Transactions (AFEHCT)
- Association for European Paediatric Cardiologists (AEPC)
- Association for Firefighters and Paramedics (AFP)
- Association for Gay Lesbian and Bisexual Issues in Counseling (AGLBIC)
- Association for Gerontology Education in Social Work (AGE-SW)
- Association for Gerontology in Higher Education (AGHE)
- Association for Glycogen Storage Disease (AGSD)
- Association for Glycogen Storage Disease (AGSD) - United Kingdom (UK)
- Association for Hanna Somatic Education (AHSE)
- Association for Health Information and Libraries in Africa (AHILA)
- Association for Healthcare Philanthropy (AHP)
- Association for Healthcare Resource & Materials Management (AHRMM)
- Association for Higher Education Access and Disability (AHEAD) - Ireland (IE)
- Association for Hospital Medical Education (AHME)
- Association for Human Pharmacology in the Pharmaceutical Industry (AHPPI) - United Kingdom (UK)
- Association for Imago Relationship Therapy (AIRT)
- Association for Improvements in Maternity Services (AIMS) - United Kingdom (UK)
- Association for Integrative Health Care Practitioners (AIHCP)
- Association for Integrative Medicine (AIM)
- Association for International Cancer Research (AICR) - United Kingdom (UK) Charity
- Association for Humanistic Psychology
- Association for Macular Diseases (AMD)
- Association for Medical Education and Research in Substance Abuse (AMERSA)
- Association for Molecular Pathology (AMP)
- Association for Multicultural Counseling and Development (AMCD)
- Association for Palliative Medicine of Great Britain and Ireland (APM) - United Kingdom (UK)
- Association for Pastoral Counseling and Supervision (APCS)
- Association for Pathology Informatics (API)
- Association for Persons in Supported Employment (APSE) - Disabilities
- Association for Play Therapy (APT)
- Association for Pre- & Perinatal Psychology and Health (APPPAH)
- Association for Professionals in Infection Control and Epidemiology
- Association for Psychoanalytic Psychotherapy (APP) in the National Health Service (UK)
- Association for Research in Otolaryngology (ARO)
- Association for Research in Vision and Ophthalmology (ARVO)
- Association for Research into Stammering in Childhood (ARSC) - United Kingdom (UK)
- Association for Retinoplasty of Prematurity and Related Diseases (ROPARD)
- Association for Safe International Road Travel (ASIRT)
- Association for Specialists in Group Work (ASGW)
- Association for Spina Bifida and Hydrocephalus (ASBAH) - United Kingdom (UK)
- Association for Surgical Education (ASE)
- Association for Treatment and Training in the Attachment of Children (ATTACh)
- Association for Women Veterinarians (AWV)
- Association for the Accreditation of Human Research Protection Programs (AAHRPP)
- Association for the Advancement of Applied Sports Psychology (AAASP)
- Association for the Advancement of Assistive Technology in Europe (AAATE)
- Association for the Advancement of Automotive Medicine (AAAM)
- Association for the Advancement of Gestalt Therapy (AAGT)
- Association for the Advancement of Medical Instru