| A | Allergy |
| ACU | Ambulatory/Urgent Care |
| AD | Addictionology |
| ADL | Pediatrics, Adolescent Medicine |
| ADM | Addiction Medicine |
| ADP | Addiction Psychiatry |
| AI | Allergy and Immunology |
| ALI | Allergy & Immunology/Clinical & Lab Immunology |
| AM | Aerospace Medicine |
| AMI | Adolescent Medicine, Internal Medicine |
| AN | Anesthesiology |
| APM | Anesthesiology Pain Management |
| AS | Abdominal Surgery |
| ATP | Anatomic Pathology |
| AVM | Aviation Medicine |
| BBK | Blood Banking/Transfusion Medicine |
| BE | Broncho-Esophagology |
| BLB | Bloodbanking |
| BRM | Bariatric Medicine |
| BRS | Bariatric Surgery |
| CBG | Clinical Biochemical Genetics |
| CCA | Critical Care Anesthesiology |
| CCG | Clinical Cytogenetics |
| CCM | Critical Care Medicine (IM) |
| CCP | Critical Care Pediatric |
| CCS | Critical Care Surgery |
| CD | Cardiovascular Diseases |
| CDS | Cardiovascular Surgery |
| CED | Corneal & External Eye Disease |
| CG | Clinical Genetics |
| CHN | Child Neurology |
| CHP | Child & Adolescent Psychiatry |
| CLP | Clinical Pathology |
| CMG | Clinical Molecular Genetics |
| CN | Clinical Neurophysiology |
| CR | Clinical Research |
| CRS | Colon and Rectal Surgery |
| CS | Cosmetic Surgery |
| CTR | Cardiothoracic Radiology |
| CTS | Cardiothoracic Surgery |
| D | Dermatology |
| DBP | Developmental-Behavorial Pediatrics |
| DDL | Dermatological Immunology/Clinical & Lab |
| DIA | Diabetes |
| DLI | Diagnostic Lab Immunology |
| DMP | Dermatopathology |
| DR | Diagnostic Radiology |
| DS | Dermatologic Surgery |
| ECH | Echocardiography |
| ELD | Electrodiagnostic Med |
| EM | Emergency Medicine |
| END | Endocrinology, Diabetes & Metabolism |
| ESM | Sports Medicine (Emergency Medicine) |
| ESN | Endovascular Surgical Neuroradiology |
| ETX | Medical Toxicology (Emergency Medicine) |
| FM | Family Medicine |
| FOP | Forensic Pathology |
| FP | Family Practice |
| FPG | Family Practice, Geriatric Medicine |
| FPS | Facial Plastic Surgery |
| FRM | Functional Regenerative Med |
| FSM | Family Practice, Sports Medicine |
| GE | Gastroenterology |
| GER | Geriatrics |
| GO | Gynecological Oncology |
| GP | General Practice |
| GPM | General Preventive Medicine |
| GS | General Surgery |
| GYN | Gynecology |
| HBS | Hepatobiliary Surgery |
| HEM | Hematology, Internal Medicine |
| HEP | Hepatology |
| HMP | Hematology, Pathology |
| HNS | Head and Neck Surgery |
| HO | Hematology, Oncology |
| HOS | Hospitalist |
| HPC | Hospice & Palliative Care |
| HPM | Hospice & Palliative Med |
| HS | Hand Surgery |
| HSO | Hand Surgery, Orthopedic |
| HSP | Hand Surgery, Plastic Surgery |
| HYP | Hypnosis |
| IC | Interventional Cardiology |
| ICE | Internal Medicine, Cardiac Electrophysiology |
| ID | Infectious Disease |
| IG | Immunology |
| ILI | Internal Medicine, Clinical & Lab Immunology |
| IM | Internal Medicine |
| IMG | Internal Medicine, Geriatrics |
| INS | Insurance Medicine |
| ISM | Sports Medicine (Internal Medicine) |
| LAR | Laryngology |
| LM | Legal Medicine |
| MDM | Medical Management |
| MFM | Maternal & Fetal Medicine |
| MFS | Maxillofacial Surgery |
| MG | Medical Genetics |
| MGG | Molecular Genetic Pathology |
| MGR | Mohs Micrographic Surgery |
| MM | Medical Microbiology |
| MPD | Internal Medicine, Pediatrics |
| MPH | Public Health |
| N | Neurology |
| NC | Nuclear Cardiology |
| NCC | Neurological Surgery,Critical Care Medicine |
| ND | Neoplastic Diseases |
| NDN | Neurodevelopmental Disabilities (Psy&Neuro) |
| NEP | Nephrology |
| NM | Nuclear Medicine |
| NMS | Neuro Muscular Skeletal |
| NO | Otology/Neurotology |
| NP | Neuropathology |
| NPM | Neonatal-Perinatal Medicine |
| NR | Nuclear Radiology |
| NRH | Neurorehabilitation |
| NS | Neurological Surgery |
| NSP | Neurology, Pediatric Surgery |
| NTR | Nutrition |
| NUP | Neuropsychiatry |
| OAR | Orthopedics, Adult Reconstructive |
| OBG | Obstetrics & Gynecology |
| OBS | Obstetrics |
| OCC | Obstetrics & Gynecology, Critital Care Medicine |
| OFA | Orthopedics, Foot and Ankle |
| OM | Occupational Medicine |
| OMM | Osteopathic Manipulative Med |
| OMO | Orthopedic Musculoskeletal Oncology |
| ON | Oncology, Medical |
| OP | Pediatric Orthopedics |
| OPH | Ophthalmology |
| ORS | Orthopaedic Surgery |
| OS | Other Specialty |
| OSM | Orthopedic Surgery, Sports Medicine |
| OSS | Orthopedic Surgery, Spine |
| OT | Otology |
| OTO | Otolaryngology |
| OTR | Orthopedic, Trauma |
| P | Psychiatry |
| PA | Pharmacology, Clinical |
| PAN | Pediatric Anesthesiology |
| PCC | Pulmonary Critical Care Medicine |
| PCH | Pathology, Chemical |
| PCP | Pathology, Cytopathology |
| PD | Pediatrics |
| PDA | Pediatric Allergy |
| PDC | Pediatric Cardiology |
| PDD | Pediatric Dermatology |
| PDE | Pediatric Endocrinology |
| PDI | Pediatric Infectious Diseases |
| PDO | Pediatric Otolaryngology |
| PDP | Pediatric Pulmonology |
| PDR | Pediatric Radiology |
| PDS | Pediatric Surgery |
| PDT | Pediatric Medical Toxicology |
| PEM | Pediatric Emergency Medicine |
| PFP | Psychiatry, Forensic |
| PG | Pediatric Gastroenterology |
| PHO | Pediatric Hematology/Oncology |
| PHP | Public Health & General Preventive Medicine |
| PIP | Pathology, Immunopathology |
| PLI | Pediatrics, Clinical & Lab Immunology |
| PLM | Palliative Medicine |
| PM | Physical Medicine & Rehabilitation |
| PMD | Pain Medicine |
| PMGT | Pain Management |
| PMM | Sports Medicine Physical Med & Rehab) |
| PN | Pediatric Nephrology |
| PO | Pediatric Ophthalmology |
| PP | Pediatric Pathology |
| PPR | Pediatric Rheumatology |
| PS | Plastic Surgery |
| PSM | Pediatric Sports Medicine |
| PTH | Pathology, Anatomic/Clinical |
| PTX | Medical Toxicology (Preventive Medicine) |
| PUD | Pulmonary Diseases |
| PYA | Psychoanalysis |
| PYG | Psychiatry, Geriatric |
| PYM | Psychosomatic Medicine |
| QUR | Quality Assurance/Utility Review |
| R | Radiology |
| RCS | Cornea Refractive Surgery |
| REN | Reproductive Endocrinology |
| RHI | Rhinology |
| RHU | Rheumatology |
| RIP | Radioisotopic Pathology |
| RNR | Neuroradiology |
| RO | Radiation Oncology |
| RP | Radiological Physics |
| RVS | Retina & Vitreous Surgery |
| SCI | Spinal Cord Injury |
| SM | Sleep Medicine |
| SO | Surgical Oncology |
| SP | Selective Pathology |
| THEP | Transplant Hepatology |
| TR | Therapeutic Radiology |
| TRS | Traumatic Surgery |
| TS | Thoracic Surgery |
| TSS | Transplant Surgery |
| U | Urology |
| UCM | Urgent Care Medicine |
| UGYN | Urogynecology |
| UM | Undersea & Hyperbaric Medicine |
| UP | Pediatric Urology |
| US | Unspecified |
| VIR | Vascular & Interventional Radiology |
| VS | Vascular Surgery |