| Specialty offered | Number of Hospitals | Number of Postions** | | Aerospace Medicine | 5 | 55 | 
| Anesthesiology | 184 | 2104 | 
| Child Neurology | 83 | 214 | 
| Dermatology | 147 | 574 | 
| Diagnostic Radiology/Nuclear Medicine | 3 | 3 | 
| Emergency Medicine | 299 | 30 | 
| Emergency Medicine/Anesthesiology | 1 | 2 | 
| Emergency Medicine/Family Medicine | 3 | 7 | 
| Family Medicine | 830 | 1525 | 
| Family Medicine/Osteopathic Neuromusculoskeletal Medicine | 1 | 2 | 
| Family Medicine/Preventive Medicine | 2 | 2 | 
| Internal Medicine | 697 | 138 | 
| 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 | 78 | 407 | 
| Internal Medicine/Preventive Medicine | 5 | 9 | 
| Internal Medicine/Psychiatry | 15 | 28 | 
| Interventional Radiology-Integrated | 101 | 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 | 198 | 0 | 
| Nuclear Medicine | 35 | 60 | 
| Obstetrics and Gynecology | 307 | 13 | 
| Occupational and Environmental Medicine | 21 | 0 | 
| Ophthalmology | 128 | 547 | 
| Orthopaedic Surgery | 212 | 990 | 
| Osteopathic Neuromusculoskeletal Medicine | 26 | 37 | 
| Other | 2 | 0 | 
| Otolaryngology-Head and Neck Surgery | 133 | 412 | 
| Pathology-Anatomic and Clinical | 144 | 657 | 
| Pediatrics | 219 | 28 | 
| Pediatrics/Anesthesiology | 6 | 9 | 
| Pediatrics/Emergency Medicine | 4 | 9 | 
| Pediatrics/Medical Genetics and Genomics | 28 | 0 | 
| Pediatrics/Physical Medicine and Rehabilitation | 4 | 5 | 
| Pediatrics/Psychiatry/Child and Adolescent Psychiatry | 11 | 29 | 
| Physical Medicine and Rehabilitation | 115 | 550 | 
| Plastic Surgery | 51 | 78 | 
| Plastic Surgery-Integrated | 89 | 225 | 
| Psychiatry | 354 | 0 | 
| Psychiatry/Family Medicine | 7 | 14 | 
| Psychiatry/Neurology | 4 | 5 | 
| Public Health and General Preventive Medicine | 42 | 144 | 
| Radiation Oncology | 89 | 202 | 
| Radiology-Diagnostic | 200 | 1282 | 
| Reproductive Endocrinology and Infertility/Medical Genetics and Genomics | 1 | 1 | 
| Surgery-General | 370 | 18 | 
| Surgery-General - Preliminary Track | 1 | 0 | 
| Thoracic Surgery-Integrated | 36 | 56 | 
| Transitional Year | 217 | 82 | 
| Urology | 153 | 423 | 
| Vascular Surgery-Integrated | 81 | 110 |