| No. | Item | Definition |
|---|---|---|
| 1. | Addiction medicine doctor | Treats substance use disorders |
| 2. | Allergist | Allergy and immune specialist |
| 3. | Anatomic pathologist | Tissue-based disease diagnosis |
| 4. | Andrologist | Male reproductive health specialist |
| 5. | Anesthesiologist | Anesthesia and pain control doctor |
| 6. | Bacteriologist | Bacterial disease specialist |
| 7. | Bariatric surgeon | Weight-loss surgery specialist |
| 8. | Breast surgeon | Surgery for breast conditions |
| 9. | Burn surgeon | Surgical care for burns |
| 10. | Cardiologist | Heart specialist |
| 11. | Cardiothoracic surgeon | Heart and chest surgeon |
| 12. | Clinical oncologist | Cancer specialist managing treatments |
| 13. | Clinical pathologist | Lab medicine and test interpretation |
| 14. | Clinical pharmacologist | Medicine effects and dosing specialist |
| 15. | Colorectal surgeon | Colon and rectum surgeon |
| 16. | Critical care physician | ICU specialist doctor |
| 17. | Cytopathologist | Diagnoses disease from cell samples |
| 18. | Dentist | Oral health and tooth care doctor |
| 19. | Dermatologist | Skin specialist |
| 20. | Dermatopathologist | Skin biopsy diagnosis specialist |
| 21. | Diabetologist | Diabetes specialist |
| 22. | Diagnostic radiologist | Reads scans and imaging studies |
| 23. | Electrophysiologist | Heart rhythm specialist |
| 24. | Emergency physician | Doctor in emergency department |
| 25. | Endocrinologist | Hormone and metabolism specialist |
| 26. | Endodontist | Root canal specialist |
| 27. | Epidemiologist | Studies disease patterns in populations |
| 28. | Family physician | Primary care for all ages |
| 29. | Foot and ankle surgeon | Surgery of foot and ankle |
| 30. | Forensic pathologist | Determines cause of death |
| 31. | Forensic psychiatrist | Psychiatry in legal settings |
| 32. | Gastroenterologist | Digestive system specialist |
| 33. | General surgeon | Performs common surgeries |
| 34. | Geriatric psychiatrist | Mental health doctor for older adults |
| 35. | Geriatrician | Doctor for older adults |
| 36. | Gynecologist | Female reproductive health doctor |
| 37. | Hand surgeon | Surgery of hand and wrist |
| 38. | Heart failure specialist | Treats advanced heart failure |
| 39. | Hematologist | Blood disorders specialist |
| 40. | Hematopathologist | Blood and marrow pathology specialist |
| 41. | Hepatologist | Liver disease specialist |
| 42. | Hospice physician | End-of-life comfort care doctor |
| 43. | Hospitalist | Inpatient care doctor |
| 44. | Hypertension specialist | High blood pressure specialist |
| 45. | Infectious disease doctor | Complex infection specialist |
| 46. | Internist | Adult medicine specialist |
| 47. | Interventional cardiologist | Heart catheter procedure specialist |
| 48. | Interventional radiologist | Image-guided minimally invasive procedures |
| 49. | Lipidologist | Cholesterol and lipid disorders doctor |
| 50. | Maternal-fetal specialist | High-risk pregnancy specialist |
| 51. | Maxillofacial surgeon | Face and jaw surgery specialist |
| 52. | Medical examiner | Investigates deaths medically |
| 53. | Medical geneticist | Diagnoses genetic conditions |
| 54. | Medical oncologist | Cancer treatment with medicines |
| 55. | Medical toxicologist | Emergency toxin and overdose expert |
| 56. | Molecular pathologist | Genetic and molecular test specialist |
| 57. | Neonatologist | Newborn intensive care doctor |
| 58. | Nephrologist | Kidney specialist |
| 59. | Neuroanesthesiologist | Anesthesia for brain and spine surgery |
| 60. | Neurologist | Brain and nerve specialist |
| 61. | Neuroradiologist | Brain and spine imaging specialist |
| 62. | Neurosurgeon | Brain and spine surgeon |
| 63. | Nuclear medicine physician | Uses radioactive tracers for diagnosis |
| 64. | Obstetrician | Pregnancy and childbirth doctor |
| 65. | Occupational medicine doctor | Workplace health and injury doctor |
| 66. | Oncologist | Cancer specialist |
| 67. | Ophthalmologist | Medical and surgical eye doctor |
| 68. | Oral surgeon | Surgery of mouth and jaw |
| 69. | Orthodontist | Teeth alignment specialist |
| 70. | Orthopedic surgeon | Bone and joint surgeon |
| 71. | Otolaryngologist | Ear, nose, and throat doctor |
| 72. | Pain medicine specialist | Doctor treating chronic pain |
| 73. | Pathologist | Diagnoses disease from samples |
| 74. | Pediatric surgeon | Surgery for children |
| 75. | Pediatrician | Doctor for children |
| 76. | Plastic surgeon | Reconstructive and cosmetic surgery |
| 77. | Primary care physician | General doctor for routine care |
| 78. | Psychiatrist | Medical doctor for mental health |
| 79. | Pulmonologist | Lung and breathing specialist |
| 80. | Radiation oncologist | Cancer treatment with radiation |
| 81. | Radiologist | Interprets medical imaging |
| 82. | Reproductive endocrinologist | Fertility and hormone specialist |
| 83. | Reproductive psychiatrist | Mental health in pregnancy period |
| 84. | Rheumatologist | Autoimmune and joint disease doctor |
| 85. | Sleep medicine specialist | Diagnoses and treats sleep disorders |
| 86. | Sports medicine physician | Treats sports injuries and fitness |
| 87. | Surgical intensivist | ICU care for surgical patients |
| 88. | Surgical oncologist | Cancer surgery specialist |
| 89. | Telemedicine physician | Provides care by video or phone |
| 90. | Thoracic surgeon | Chest surgery specialist |
| 91. | Toxicologist | Poisoning and toxin specialist |
| 92. | Transfusion medicine doctor | Blood banking and transfusion expert |
| 93. | Transplant surgeon | Organ transplant surgery specialist |
| 94. | Trauma surgeon | Surgery for severe injuries |
| 95. | Travel medicine doctor | Pre-travel vaccines and advice |
| 96. | Urgent care physician | Treats non-emergency acute problems |
| 97. | Urogynecologist | Pelvic floor and bladder doctor |
| 98. | Urologist | Urinary tract specialist |
| 99. | Vascular surgeon | Blood vessel surgeon |
| 100. | Virologist | Virus disease specialist |