| Specialty offered | Number of Hospitals | Number of Postions** |
| Aerospace Medicine | 5 | 0 |
| Aerospace Medicine/Emergency Medicine | 1 | 0 |
| Aerospace Medicine/Internal Medicine | 1 | 0 |
| Anesthesiology | 190 | 1973 |
| Child Neurology | 83 | 203 |
| Dermatology | 147 | 535 |
| Diagnostic Radiology/Nuclear Medicine | 3 | 3 |
| Emergency Medicine | 303 | 3121 |
| Emergency Medicine/Anesthesiology | 1 | 2 |
| Emergency Medicine/Family Medicine | 3 | 7 |
| Family Medicine | 838 | 5461 |
| Family Medicine/Osteopathic Neuromusculoskeletal Medicine | 1 | 2 |
| Family Medicine/Preventive Medicine | 2 | 2 |
| Internal Medicine | 710 | 11270 |
| Internal Medicine/Anesthesiology | 2 | 6 |
| Internal Medicine/Dermatology | 5 | 8 |
| Internal Medicine/Emergency Medicine | 13 | 34 |
| Internal Medicine/Emergency Medicine/Critical Care Medicine | 7 | 1 |
| Internal Medicine/Medical Genetics and Genomics | 6 | 6 |
| Internal Medicine/Pediatrics | 79 | 407 |
| Internal Medicine/Preventive Medicine | 6 | 9 |
| Internal Medicine/Psychiatry | 15 | 28 |
| Interventional Radiology-Integrated | 102 | 210 |
| Laboratory Genetics and Genomics | 39 | 54 |
| Medical Genetics and Genomics | 47 | 75 |
| Medical Genetics and Genomics/Maternal-Fetal Medicine | 5 | 4 |
| Neurological Surgery | 123 | 269 |
| Neurology | 200 | 1151 |
| Nuclear Medicine | 35 | 6 |
| Obstetrics and Gynecology | 310 | 1637 |
| Occupational and Environmental Medicine | 21 | 28 |
| Ophthalmology | 128 | 0 |
| Orthopaedic Surgery | 216 | 949 |
| Osteopathic Neuromusculoskeletal Medicine | 27 | 37 |
| Otolaryngology-Head and Neck Surgery | 133 | 394 |
| Pathology-Anatomic and Clinical | 144 | 632 |
| Pediatrics | 221 | 3203 |
| Pediatrics/Anesthesiology | 6 | 9 |
| Pediatrics/Emergency Medicine | 4 | 9 |
| Pediatrics/Medical Genetics and Genomics | 29 | 28 |
| Pediatrics/Physical Medicine and Rehabilitation | 4 | 5 |
| Pediatrics/Psychiatry/Child and Adolescent Psychiatry | 11 | 29 |
| Physical Medicine and Rehabilitation | 115 | 533 |
| Plastic Surgery | 51 | 0 |
| Plastic Surgery-Integrated | 93 | 225 |
| Psychiatry | 355 | 2388 |
| Psychiatry/Family Medicine | 7 | 14 |
| Psychiatry/Neurology | 4 | 5 |
| Public Health and General Preventive Medicine | 42 | 144 |
| Radiation Oncology | 89 | 202 |
| Radiology-Diagnostic | 202 | 1288 |
| Reproductive Endocrinology and Infertility/Medical Genetics and Genomics | 1 | 1 |
| Surgery-General | 375 | 1812 |
| Surgery-General - Preliminary Track | 1 | 0 |
| Thoracic Surgery-Integrated | 36 | 56 |
| Transitional Year | 224 | 1982 |
| Urology | 156 | 7 |
| Vascular Surgery-Integrated | 81 | 102 |