| Nurse practitioner | 134 |
| Family practice | 32 |
| Internal medicine | 29 |
| Emergency medicine | 26 |
| Certified Registered Nurse Anesthetist (CRNA) | 25 |
| Physical therapist (private practice) | 21 |
| Physician assistant | 19 |
| Licensed clinical social worker | 18 |
| Optometrist | 16 |
| Cardiology | 15 |
| Hospitalist | 15 |
| Mass Immunization Roster Billers | 13 |
| Obstetrics/gynecology | 12 |
| General surgery | 12 |
| Chiropractic | 12 |
| Orthopedic surgery | 11 |
| Anesthesiology | 11 |
| Diagnostic Radiology | 10 |
| Clinical psychologist | 9 |
| Mental Health Counselors | 7 |
| Podiatry | 6 |
| Psychiatry | 6 |
| Occupational therapist (private practice) | 6 |
| Ophthalmology | 5 |
| Gastroenterology | 5 |
| Ambulance Service Supplier, e.g., private ambulance companies, funeral homes | 5 |
| Pulmonary disease | 4 |
| Pediatric medicine | 4 |
| Speech / language pathology | 3 |
| Neurology | 3 |
| Medical oncology | 3 |
| Audiologist (billing independently) | 3 |
| Endocrinology | 3 |
| Hand surgery | 2 |
| Urology | 2 |
| Dermatology | 2 |
| General practice | 2 |
| Physical medicine and rehabilitation | 2 |
| Registered Dietician/Nutrition Professional | 2 |
| Rheumatology | 2 |
| Hematology/oncology | 2 |
| Neurosurgery | 2 |
| Allergy/immunology | 2 |
| Radiation oncology | 2 |
| Pathology | 2 |
| Interventional radiology | 2 |
| Pharmacy | 1 |
| Certified nurse midwife | 1 |
| Cardiac surgery | 1 |
| Interventional Cardiology | 1 |
| Pain Management | 1 |
| Centralized Flu | 1 |
| Interventional Pain Management (IPM) | 1 |
| Thoracic surgery | 1 |
| Cardiac Electrophysiology | 1 |