| Nurse practitioner | 161 |
| Internal medicine | 83 |
| Family practice | 68 |
| Physician assistant | 52 |
| Licensed clinical social worker | 50 |
| Certified Registered Nurse Anesthetist (CRNA) | 46 |
| Emergency medicine | 36 |
| Diagnostic Radiology | 32 |
| Physical therapist (private practice) | 29 |
| Mental Health Counselors | 23 |
| Optometrist | 17 |
| Anesthesiology | 16 |
| Chiropractic | 16 |
| Psychiatry | 15 |
| Obstetrics/gynecology | 15 |
| General surgery | 14 |
| Cardiology | 13 |
| Occupational therapist (private practice) | 13 |
| Mass Immunization Roster Billers | 13 |
| Orthopedic surgery | 12 |
| Hospitalist | 10 |
| Neurology | 10 |
| Podiatry | 9 |
| Clinical psychologist | 8 |
| Pathology | 7 |
| Centralized Flu | 7 |
| Ophthalmology | 6 |
| Gastroenterology | 5 |
| Physical medicine and rehabilitation | 5 |
| Dermatology | 5 |
| Registered Dietician/Nutrition Professional | 5 |
| Infectious disease | 5 |
| Speech / language pathology | 4 |
| Neurosurgery | 4 |
| Pulmonary disease | 4 |
| Sports Medicine | 4 |
| Pediatric medicine | 4 |
| Audiologist (billing independently) | 3 |
| Otolaryngology | 3 |
| Hematology/oncology | 3 |
| Radiation oncology | 3 |
| Colorectal surgery (formerly proctology) | 3 |
| Urology | 3 |
| Vascular surgery | 2 |
| Oral surgery (dentists only) | 2 |
| Hospice and Palliative Care | 2 |
| Thoracic surgery | 2 |
| Maxillofacial surgery | 2 |
| Allergy/immunology | 2 |
| Cardiac Electrophysiology | 2 |
| Surgical oncology | 2 |
| Certified clinical nurse specialist | 2 |
| Pharmacy | 2 |
| Interventional Cardiology | 1 |
| Interventional radiology | 1 |
| Certified nurse midwife | 1 |
| Critical care (intensivists) | 1 |
| Pain Management | 1 |
| Advanced Heart Failure and Transplant Cardiology | 1 |
| Nephrology | 1 |
| Ambulatory Surgical Center | 1 |
| General Psychiatry | 1 |
| Addiction medicine | 1 |
| Medical oncology | 1 |
| Marriage and Family Therapist | 1 |
| Endocrinology | 1 |
| Hand surgery | 1 |