| Nurse practitioner | 127 |
| Physician assistant | 38 |
| Certified Registered Nurse Anesthetist (CRNA) | 31 |
| Internal medicine | 22 |
| Family practice | 21 |
| Licensed clinical social worker | 18 |
| Physical therapist (private practice) | 16 |
| Mental Health Counselors | 13 |
| Optometrist | 12 |
| Diagnostic Radiology | 11 |
| General surgery | 10 |
| Chiropractic | 9 |
| Occupational therapist (private practice) | 9 |
| Emergency medicine | 8 |
| Orthopedic surgery | 8 |
| Obstetrics/gynecology | 8 |
| Psychiatry | 8 |
| Otolaryngology | 7 |
| Mass Immunization Roster Billers | 7 |
| Pulmonary disease | 6 |
| Speech / language pathology | 6 |
| Gastroenterology | 6 |
| Anesthesiology | 6 |
| Pediatric medicine | 5 |
| Neurosurgery | 4 |
| Hematology/oncology | 4 |
| Podiatry | 4 |
| Dermatology | 4 |
| Neurology | 4 |
| Audiologist (billing independently) | 3 |
| Ophthalmology | 3 |
| Hospitalist | 3 |
| Physical medicine and rehabilitation | 3 |
| Nephrology | 2 |
| Interventional Cardiology | 2 |
| Rheumatology | 2 |
| Centralized Flu | 2 |
| Radiation oncology | 2 |
| Cardiology | 2 |
| Clinical Laboratory (Billing Independently) | 2 |
| Clinical psychologist | 2 |
| Interventional Pain Management (IPM) | 2 |
| Urology | 2 |
| Allergy/immunology | 2 |
| Preventive medicine | 1 |
| Ambulatory Surgical Center | 1 |
| Advanced Heart Failure and Transplant Cardiology | 1 |
| Sleep Medicine | 1 |
| Vascular surgery | 1 |
| Registered Dietician/Nutrition Professional | 1 |
| General practice | 1 |
| Certified nurse midwife | 1 |
| Medical oncology | 1 |
| Endocrinology | 1 |
| Cardiac Electrophysiology | 1 |
| Ambulance Service Supplier, e.g., private ambulance companies, funeral homes | 1 |
| Geriatric medicine | 1 |
| Pathology | 1 |
| Plastic and reconstructive surgery | 1 |