| Nurse practitioner | 88 |
| Physician assistant | 75 |
| Licensed clinical social worker | 44 |
| Family practice | 42 |
| Certified Registered Nurse Anesthetist (CRNA) | 36 |
| Internal medicine | 31 |
| Physical therapist (private practice) | 30 |
| Mental Health Counselors | 24 |
| Emergency medicine | 21 |
| Chiropractic | 18 |
| Anesthesiology | 13 |
| Obstetrics/gynecology | 13 |
| Optometrist | 12 |
| Clinical psychologist | 12 |
| Orthopedic surgery | 9 |
| Neurology | 7 |
| Cardiology | 7 |
| Psychiatry | 7 |
| Mass Immunization Roster Billers | 6 |
| General surgery | 5 |
| Ophthalmology | 5 |
| Diagnostic Radiology | 4 |
| Vascular surgery | 4 |
| Hematology/oncology | 4 |
| Podiatry | 4 |
| Otolaryngology | 4 |
| Pulmonary disease | 3 |
| Pediatric medicine | 3 |
| Interventional radiology | 3 |
| Centralized Flu | 3 |
| Dermatology | 3 |
| Physical medicine and rehabilitation | 3 |
| Audiologist (billing independently) | 3 |
| Hospitalist | 3 |
| Pathology | 3 |
| Cardiac Electrophysiology | 3 |
| Urology | 3 |
| Gastroenterology | 3 |
| Interventional Cardiology | 2 |
| General practice | 2 |
| Critical care (intensivists) | 2 |
| Endocrinology | 2 |
| Colorectal surgery (formerly proctology) | 2 |
| Radiation oncology | 2 |
| Sports Medicine | 2 |
| Neurosurgery | 2 |
| Oral surgery (dentists only) | 1 |
| Rheumatology | 1 |
| Pain Management | 1 |
| Ambulatory Surgical Center | 1 |
| Nephrology | 1 |
| Allergy/immunology | 1 |
| Registered Dietician/Nutrition Professional | 1 |
| Surgical oncology | 1 |
| Micrographic Dermatologic Surgery | 1 |
| Hand surgery | 1 |
| Occupational therapist (private practice) | 1 |
| Infectious disease | 1 |
| Hospice and Palliative Care | 1 |
| Thoracic surgery | 1 |
| Hematology | 1 |
| Geriatric medicine | 1 |