| Nurse practitioner | 143 |
| Physician assistant | 32 |
| Internal medicine | 30 |
| Certified Registered Nurse Anesthetist (CRNA) | 28 |
| Physical therapist (private practice) | 24 |
| Emergency medicine | 24 |
| Family practice | 21 |
| Mental Health Counselors | 18 |
| Licensed clinical social worker | 18 |
| Diagnostic Radiology | 17 |
| Mass Immunization Roster Billers | 12 |
| Orthopedic surgery | 11 |
| Cardiology | 11 |
| Centralized Flu | 9 |
| Anesthesiology | 9 |
| Obstetrics/gynecology | 9 |
| Ophthalmology | 8 |
| Optometrist | 8 |
| Dermatology | 8 |
| Podiatry | 8 |
| Psychiatry | 8 |
| Hospitalist | 7 |
| Clinical psychologist | 7 |
| General surgery | 7 |
| Nephrology | 6 |
| Pathology | 6 |
| Occupational therapist (private practice) | 6 |
| Hematology/oncology | 6 |
| Neurology | 6 |
| General practice | 5 |
| Gastroenterology | 5 |
| Chiropractic | 4 |
| Speech / language pathology | 4 |
| Ambulatory Surgical Center | 4 |
| Urology | 3 |
| Pain Management | 3 |
| Infectious disease | 3 |
| Registered Dietician/Nutrition Professional | 2 |
| Otolaryngology | 2 |
| Physical medicine and rehabilitation | 2 |
| Neurosurgery | 2 |
| Audiologist (billing independently) | 2 |
| Pediatric medicine | 2 |
| Plastic and reconstructive surgery | 2 |
| Vascular surgery | 2 |
| Cardiac surgery | 2 |
| Interventional Cardiology | 2 |
| Pulmonary disease | 2 |
| Endocrinology | 2 |
| Radiation oncology | 2 |
| Cardiac Electrophysiology | 1 |
| Hand surgery | 1 |
| Geriatric medicine | 1 |
| Marriage and Family Therapist | 1 |
| Ambulance Service Supplier, e.g., private ambulance companies, funeral homes | 1 |
| Psychologist (billing independently) | 1 |
| Colorectal surgery (formerly proctology) | 1 |
| Allergy/immunology | 1 |
| Interventional radiology | 1 |