Medical Organizations
- American Board of Quality Assurance and Utilization Review Physicians (ABQAURP)
- American Board of Radiology (ABR)
- American Board of School Neuropsychology (ABSNP)
- American Board of Science in Nuclear Medicine (ABSNM)
- American Board of Sleep Medicine (ABSM)
- American Board of Surgery (ABS)
- American Board of Thoracic Surgery (ABTS)
- American Board of Urgent Care Medicine (ABUCM)
- American Board of Urology (ABU)
- American Board of Venous & Lymphatic Medicine (ABVLM)
- American Board of Vocational Experts (ABVE)
- American Board of Wound Healing (ABWH)
- American Board of Wound Management (ABWM)
- American Botanical Council (ABC)
- American Broncho-Esophagological Association (ABEA)
- American Burn Association (ABA)
- American Cancer Society (ACS)
- American Chemical Society (ACS)
- American Chiropractic Association (ACA)
- American Chiropractic Association Council on Nutrition (ACACON)
- American Chiropractic Board of Sports Physicians (ACBSP)
- American Chiropractic Neurology Board (ACNB)
- American Chiropractic Rehabilitation Board (ACRB)
- American Clinical and Climatological Association (ACCA)
- American Clinical Board of Nutrition (ACBN)
- American Clinical Laboratory Association (ACLA)
- American College for Advancement in Medicine (ACAM)
- American College Health Association (ACHA)
- American College of Allergy, Asthma, and Immunology (ACAAI)
- American College of Angiology (ACA)
- American College of Apothecaries (ACA)
- American College of Applied Science (ACAS)
- American College of Cardiology (ACC)
- American College of Cardiology Foundation (ACCF)
- American College of Chest Physicians (CHEST)
- American College of Chiropractic Orthopedists (ACCO)
- American College of Clinical Pharmacology (ACCP)
- American College of Dentists (ACD)
- American College of Education (ACE)
- American College of Emergency Physicians (ACEP)
- American College of Endocrinology (ACE)
- American College of Epidemiology (ACE)
- American College of Foot and Ankle Orthopedics and Medicine (ACFAOM)
- American College of Foot and Ankle Surgeons (ACFAS)
- American College of Functional Neurology (ACFN)
- American College of Gastroenterology (ACG)
- American College of Health and Technology (ACHT)
- American College of Healthcare Executives (ACHE)
- American College of International Physicians (ACIP)
- American College of Lifestyle Medicine (ACLM)
- American College of Medical Genetics and Genomics (ACMGG)
- American College of Medical Informatics (ACMI)
- American College of Medical Practice Executives (ACMPE)
- American College of Medical Technology (ACNT)
- American College of Medical Toxicology (ACMT)
- American College of Military Public Health (ACMPH)
- American College of Mohs Surgery (ACMS)
- American College of Neuropsychiatrists (ACN)
- American College of Nurse-Midwives (ACNM)
- American College of Nurse-Midwives Certification Council (ACNMCC)
- American College of Nurse Practitioners (ANCP)
- 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 Academy of Sclerotherapy (ACOAS)
- American College of Osteopathic Family Physicians (ACOFP)
- American College of Osteopathic Hospital Administrators (ACOHA)
- American College of Osteopathic Internists (ACOI)
- American College of Osteopathic Obstetricians and Gynecologists (ACOOG)
- American College of Osteopathic Pediatricians (ACOP)
- American College of Osteopathic Surgeons (ACOS)
- American College of Pediatricians (ACPeds)
- American College of Phlebology (ACPh)
- American College of Physician Executives (ACPE)
- American College of Physicians (ACP)
- American College of Preventive Medicine (ACPM)
- American College of Professional Neuropsychology (ACPN)
- American College of Prosthodontists (ACP)
- American College of Psychiatrists (ACP)
- American College of Radiology (ACR)
- American College of Rheumatology (ACR)
- American College of Sports Medicine (ACSM)
- American College of Sports Medicine Excercise Physiologist (ACSM-EP)
- American College of Surgeons (ACS)
- American College of Veterinary Internal Medicine (ACVIM)
- American College of Veterinary Ophthalmologists (ACVO)
- American College of Veterinary Pathologists (ACVP)
- American College of Veterinary Preventive Medicine (ACVPM)
- American College of Veterinary Surgeons (ACVS)
- American Congress of Rehabilitation Medicine (ACRM)
- American Contact Dermatitis Society (ACDS)
- American Council for School Social Work (ACSSW)
- American Council of Academic Plastic Surgeons (ACAPS)
- American Council on Education (ACE)
- American Council on Exercise (ACE)
- American Counseling Association (ACA)
- American Dance Therapy Association (ADTA)
- American Dental Assistants Association (ADAA)
- American Dental Association (ADA)
- American Dental Education Association (ADEA)