A
{| class="wikitable sortable"
! style="width:8em;"|Abbreviation || Organization or personnel
|-
| AA || Alcoholics Anonymous
|-
| AABB || AABB, formerly known as the American Association of Blood Banks
|-
| AACN || American Association of Critical-Care Nurses
|-
| AAD || American Association of Dermatology
|-
| AADGP || American Academy of Dental Group Practice
|-
| AAFP || American Academy of Family Physicians
|-
| AAIN || American Academy of Industrial Nurses
|-
| AAMC || Australian Army Medical Corps
|-
| AAN || American Academy of Nursing
|-
| AANS || Australian Army Nursing Service
|-
| AAO || American Academy of Ophthalmology
|-
| AAO || American Academy of Optometry
|-
| AAOS || American Academy of Orthopaedic Surgeons
|-
| AAP || American Academy of Pediatrics
|-
| ABEM || American Board of Emergency Medicine
|-
| ABMS || American Board of Medical Specialties
|-
| ACCP || American College of Chest Physicians
|-
| ACEP || American College of Emergency Physicians
|-
| ACMPH || American College of Military Public Health
|-
| ACGME || Accreditation Council for Graduate Medical Education
|-
| ACOG || American College of Obstetricians and Gynecologists
|-
| ACP || Advanced Care Paramedic (Canada)
|-
| ACR || American College of Radiology
|-
| ACR || American College of Rheumatology
|-
| ACS || American Cancer Society
|-
| ACP || American College of Physicians
|-
| ACS || American College of Surgeons
|-
| ADA || American Dental Association
|-
| ADA || American Diabetes Association
|-
| AGD || Academy of General Dentistry
|-
| AHA || American Heart Association
|-
| AIEOP || Associazione Italiana Ematologia Oncologia Pediatrica (Italian association to study pediatric oncology)
|-
| AMA || American Medical Association
|-
| AMIA || American Medical Informatics Association
|-
| AMA || Australian Medical Association
|-
| AMSA || American Medical Student Association
|-
| AMT || American Medical Technologists
|-
| ANA || American Nurses Association
|-
| AND || Academy of Nutrition and Dietetics (formerly American Dietetic Association)
|-
| ANF || Australian Nursing Federation
|-
| ANNA || American Nephrology Nurses' Association
|-
| AOA || American Optometric Association
|-
| AOA || Australian Orthopaedic Association
|-
| AOA || American Osteopathic Association
|-
| AOBEM || American Osteopathic Board of Emergency Medicine
|-
| AORN || Association of Perioperative Registered Nurses
|-
| APGAR || American Pediatric Gross Assessment Record (a backronym)
|-
| APA || American Psychiatric Association
|-
| APN || Advanced practice nurse
|-
| ARA || American Rheumatological Association
|-
| ARRT || American Registry of Radiologic Technologists
|-
| ASCEPT|| Australasian Society of Clinical & Experimental Pharmacologists and Toxicologists
|-
| ASCP || American Society for Clinical Pathology
|-
| ASCP || American Society of Consultant Pharmacists
|-
| ASFA || American Society for Apheresis
|-
| ASHA || American Speech–Language–Hearing Association
|-
| ASMI || Australian Self-Medication Industry
|-
| ASMSO || American Society of Medication Safety Officers
|-
| ASPS || American Society of Plastic Surgeons
|-
| ASRT || American Society of Radiologic Technologists
|-
| ASTRO || ASTRO (American Society for Radiation Oncology)
|-
| ASSH || American Society for Surgery of the Hand
|-
| AWHONN|| Association of Women's Health, Obstetric and Neonatal Nurses
|}
B
{| class="wikitable sortable"
! style="width:8em;"|Abbreviation || Organization or personnel
|-
| BMA || British Medical Association
|-
| BAAPS || British Association of Aesthetic Plastic Surgeons
|-
| BNF || British National Formulary
|}
C
{| class="wikitable sortable"
! style="width:8em;"|Abbreviation || Organization or personnel
|-
| CAD || Canadian Association of the Deaf
|-
| CAEP || Canadian Association of Emergency Physicians
|-
| CAG || Canadian Association of Gerontology
|-
| CAMT || Canadian Association of Music Therapy
|-
| CAMTS || Commission on Accreditation of Medical Transport Systems
|-
| CAO || Canadian Association of Optometrists
|-
| CAOT || Canadian Association of Occupational Therapists
|-
| CAP || Canadian Association of Physicists
|-
| CAP || College of American Pathologists
|-
| CAR || Canadian Association of Radiologists
|-
| CASLPA|| Canadian Association of Speech-Language Pathologists and Audiologists
|-
| CASLPO|| College of Audiologists and Speech-Language Pathologists of Ontario
|-
| CCG || Children's Cancer Group
|-
| CCOHS || Canadian Centre for Occupational Health
|-
| CCRN || Certification for adult, pediatric and neonatal critical care nurses
|-
| CCS || Canadian Cardiovascular Society
|-
| CDAAC || Communicative Disorders Assistant Association of Canada
|-
| CDC || Centers for Disease Control and Prevention
|-
| CESMA || Council for European Specialist Medical Assessments
|-
| CHT || Certified Hand Therapist
|-
| CMA || Canadian Medical Association
|-
| CMA || Certified medical assistant
|-
| CMS || Centers for Medicare and Medicaid Services
|-
| CNA || Certified Nursing Assistant
|-
| COG || Children's Oncology Group
|-
| COTA(A)|| Council on the Ageing (Australia)
|-
| CPhT || Certified pharmacy technician
|-
| CPM || Certified Professional Midwife
|-
| CPME || Standing Committee of European Doctors
|-
| CRD || Centre for Reviews and Dissemination
|-
| CRN || Certified radiology nurse
|-
| CRNA || Certified registered nurse anesthetist
|-
| CRT || Certified respiratory therapists – Respiratory therapy
|-
| CRT || Certified Radiologic Technologist – California License
|-
| CRTT || Certified Respiratory Therapy Technicians – Respiratory therapy
|-
| CTRS || Certified therapeutic recreation specialist – Recreation therapy or Therapeutic recreation
|-
| CSA || Certified surgical assistant
|-
| CST || Certified Surgical Technologist
|-
| CWS || cooperative weichteilsarkomen study (German soft tissue sarcoma cooperative group)
|}
D
{| class="wikitable sortable"
! style="width:8em;"|Abbreviation || Organization or personnel
|-
| DC || Doctor of Chiropractic
|-
|DDS
|Doctor of Dental Surgery
|-
|DHB
|District Health Board (New Zealand)
|-
| DI || Digital Imaging Technologist
|-
| DMD || Doctor of Dental Medicine
|-
| DNP || Doctor of Nursing Practice
|-
| DO || Doctor of Osteopathic Medicine
|-
| DoH || Department of Health (various countries)
|-
| DNB || Diplomate of National Board India
|-
| DPT || Doctor of Physical Therapy
|-
| DPM
| Doctor of Podiatric Medicine
|-
|}
E
{| class="wikitable sortable"
! style="width:8em;"|Abbreviation || Organization or personnel
|-
| EMA || European Medicines Agency
|-
| EMS || Emergency medical services
|-
| EMT || Emergency medical technician
|-
| EMT-B || Emergency Medical Technician - Basic(OLD)
|-
| EMT-I || Emergency Medical Technician - Intermediate (OLD)
|-
| EMT-P || Emergency Medical Technician - Paramedic (OLD)
|-
| EN || Enrolled nurse (AU) – See Licensed practical nurse
|-
| EORTC || European Organization for Research Treatment in Cancer
|-
| EpSSG || European paediatric soft tissue sarcoma study group
|-
| ESRD || End Stage Renal Disease Program
|}
F
{| class="wikitable sortable"
! style="width:8em;"|Abbreviation || Organization or personnel
|-
| FDA || Food and Drug Administration
|-
|FACC
|Fellowship in the American College of Cardiology
|-
| FACE || Fellow of the American College of Endocrinology
|-
|FACP
|Fellow of the American College of Physicians
|-
|FAHA
|Fellow of the American Heart Association
|-
|FCCP
|Fellow of the American College of Chest Physicians
|-
|FCRSA
|
|-
| FHO || Foundation house officer
|-
| FIGO || International Federation of Gynecology and Obstetrics
|-
|FNKR
|
|-
|FNLA
|Fellow of the National Lipid Association
|-
| FNP || Family Nurse Practitioner
|-
| FRCP || Fellow of the Royal College of Physicians (UK)
|-
| FVRS
| Fellowship in Vitreo-Retinal Surgery
|-
| FAPA
| Fellowship, American Psychiatric Association
|}
G
{| class="wikitable sortable"
! style="width:8em;"|Abbreviation || Organization or personnel
|-
| GDC || General Dental Council (UK)
|-
| GMC || General Medical Council (UK)
|-
| GMS || General medical services medical services provided by GPs (UK)
|-
| GP || General practitioner
|-
| GPhC || General Pharmaceutical Council (UK)
|}
H
{| class="wikitable sortable"
! style="width:8em;"|Abbreviation || Organization or personnel
|-
| HC || Health Canada
|-
| HEMS || Helicopter Emergency Medical Service
|-
|HPCSA
|Health Professions Council of South Africa
|-
| HSE || Health Service Executive (Ireland)
|}
I
{| class="wikitable sortable"
! style="width:8em;"|Abbreviation || Organization or personnel
|-
| IASP || International Association for the Study of Pain
|-
| IAMMS || Ibn Sina Academy of Medieval Medicine and Sciences
|-
| IBCLC || International Board Certified Lactation Consultant
|-
| ICG || Italian Cooperative Group
|-
| IFMSA || International Federation of Medical Students' Associations
|-
| IMD || Institution for Mental Disease
|-
| IMF || Irish Medicines Formulary
|-
| IMO || Irish Medical Organisation
|-
| INHS || Inland Northwest Health Services
|-
| ISMP || Institute for Safe Medication Practices
|}
J
{| class="wikitable sortable"
! style="width:8em;"|Abbreviation || Organization or personnel
|-
| JAMA || Journal of the American Medical Association
|-
| JAOA || Journal of the American Osteopathic Association
|-
| JC || Joint Commission, previously JCAHO
|}
L
{| class="wikitable sortable"
! style="width:8em;"|Abbreviation || Organization or personnel
|-
| LA || Laboratory aide or assistant
|-
| LMSSA || Licentiate in Medicine and Surgery of the Society of Apothecaries
|-
| LMT || Licensed massage therapist
|-
| LPN || Licensed practical nurse
|-
| LSA || Licensed surgical assistant
|-
| LVN || Licensed vocational nurse – see licensed practical nurse
|}
M
{| class="wikitable sortable"
! style="width:8em;"|Abbreviation || Organization or personnel
|-
| MASH || Mobile army surgical hospital (US)
|-
| MedPAC|| Medicare Payment Advisory Commission
|-
| MD || Doctor of Medicine
|-
| MLA || Medical laboratory assistant
|-
| MT || Medical technologist
|-
| MLT || Medical laboratory technician
|-
| MOH || Ministry of Health (various countries)
|-
| MRCP || Membership of the Royal College of Physicians
|-
| MRCS || Membership of the Royal College of Surgeons
|-
| MRT || Medical radiation technologist
|-
| MP || Medical psychologist
|-
|MPH
|Master of Public Health
|-
| MSOS || Medication Safety Officers Society
|-
| MSPT
|| Master of Science in Physical Therapy
|-
|}
N
{| class="wikitable sortable"
! style="width:8em;"|Abbreviation || Organization or personnel
|-
| NA || Narcotics Anonymous
|-
| NAACLS|| National accrediting agency for clinical laboratory science
|-
| NAPCRG|| North American Primary Care Research Group
|-
| NCA || National credentialing agency for laboratory personnel
|-
| NCI || National Cancer Institute
|-
| NCTMB || Nationally certified in therapeutic massage and bodywork
|-
| NEJM || New England Journal of Medicine
|-
| NHC || Nephrology Hypertension Clinic, P.C
|-
| NHS || National Health Service
|-
| NICE || National Institute for Health and Clinical Excellence
|-
| NKC || Northwest Kidney Centers
|-
| NKF || National Kidney Foundation
|-
| NYHA || New York Heart Association
|-
| NPS || National Prescribing Service (Australia)
|-
| NPSA || National Pharmaceutical Services Association
|-
| NREMT || National Registry of Emergency Medical Technicians(ORG)
|-
| NREMR || National Registry Emergency Medical First Responder (NREMR)
|-
| NREMT || National Registry Emergency Medical Technician (NREMT)
|-
| NRS || Nurse
|-
| NRAEMT || National Registry Advanced Emergency Medical Technician (NRAEMT)
|-
| NRP || National Registry Paramedic
|-
| NZNO || New Zealand Nurses Organisation
|}
O
{| class="wikitable sortable"
! style="width:8em;"|Abbreviation || Organization or personnel
|-
| OD || Doctor of Optometry
|-
| ONG || Orthodontic National Group
|-
| OTA || Orthodontic Technicians Association
|-
| OTR
|| Occupational Therapist Registered
|-
|}
P
{| class="wikitable sortable"
! style="width:8em;"|Abbreviation || Organization or personnel
|-
| PA || Physician assistant or pathologist assistant
|-
| PAC || Certified Physician assistant or pathologist assistant
|-
| CPT || Phlebotomist
|-
| PCT || Primary care trust (UK)
|-
| PGNZ || Pharmaceutical Guild of New Zealand
|-
| PHARM || Pharmaceutical Health and Rational Use of Medicines (Australia)
|-
| Pharm.D || Doctor of Pharmacy
|-
| PMS || Personal Medical Services alternative contract for UK GPs
|-
| POG || Pediatric Oncology Group
|-
| PRHO || Pre-registration house officer (UK)
|-
| PSNZ || Pharmaceutical Society of New Zealand
|}
R
{| class="wikitable sortable"
! style="width:8em;"|Abbreviation || Organization or personnel
|-
| RA || Radiologist's assistant
|-
| RACP || Royal Australasian College of Physicians
|-
| RACS || Royal Australasian College of Surgeons
|-
| RCGP || Royal College of General Practitioners
|-
| RCIS || Registered Cardiovascular Invasive Specialist
|-
| RCS || Registered Cardiovascular Specialist
|-
| RCM || Royal College of Midwives
|-
| RCN || Royal College of Nursing
|-
| RCOG || Royal College of Obstetricians and Gynaecologists
|-
| RCP || Royal College of Pathologists
|-
| RCP || Royal College of Physicians
|-
| RCPA || Royal College of Pathologists of Australasia
|-
| RCS || Royal College of Surgeons (England)
|-
| RCSI || Royal College of Surgeons in Ireland
|-
| RD || Registered Dietitian
|-
| RMA || Registered medical assistant
|-
| RN || Registered nurse
|-
| R.Ph || Registered pharmacist
|-
| RPhT || Registered pharmacy technician
|-
| RPN || Registered practical nurse — See Licensed practical nurse
|-
| RPN || Registered psychiatric nurse
|-
| RPS || Royal Pharmaceutical Society
|-
| RRT || Registered Respiratory Therapist - Respiratory therapy
|-
| RVT || Registered Veterinary Technician
|-
| RSN || Renal support network
|-
| RT || Radiologic technologist
|-
| RT || Respiratory therapist – Respiratory therapy
|}
S
{| class="wikitable sortable"
! style="width:8em;"|Abbreviation || Organization or personnel
|-
| SCOAP || Surgical Care and Outcomes Assessment Program
|-
| SEN || State Enrolled Nurse (UK) – See Licensed Practical Nurse
|-
| SHO || Senior house officer (UK)
|-
| SIGN || Scottish Intercollegiate Guidelines Network (SIGN and NICE are major centers of CPG development)
|-
| SIOP || International Society of Paediatric Oncology
|-
| SN || Student nurse
|-
| SOMA || Student Osteopathic Medical Association
|-
| STFM || Society of Teachers of Family Medicine
|-
| STSC || Soft tissue sarcoma committee
|-
| SpR || Specialist registrar (UK)
|-
| SLP || Speech-language pathologist
|}
U
{| class="wikitable sortable"
! style="width:8em;"|Abbreviation || Organization or personnel
|-
| UDC || University Disability Consortium
|-
| UEMS || Union Européenne des Médecins Spécialistes
|-
| UKPDS || United Kingdom Prospective Diabetes Study
|-
| UNOS || United Network for Organ Sharing
|-
| USMLE || United States Medical Licensing Examination
|}
V
{| class="wikitable sortable"
! style="width:8em;"|Abbreviation || Organization or personnel
|-
| VA || Veterans Administration – United States Department of Veterans Affairs
|}
W
{| class="wikitable sortable"
! style="width:8em;"|Abbreviation || Organization or personnel
|-
| WHO || World Health Organization
|-
| WMA || World Medical Association
|}
