| Nurse practitioner | 37 |
| Certified Registered Nurse Anesthetist (CRNA) | 11 |
| Physician assistant | 10 |
| Optometrist | 9 |
| Internal medicine | 9 |
| Physical therapist (private practice) | 7 |
| Orthopedic surgery | 6 |
| Emergency medicine | 5 |
| Licensed clinical social worker | 5 |
| Chiropractic | 4 |
| Diagnostic Radiology | 4 |
| Family practice | 4 |
| Otolaryngology | 3 |
| Mass Immunization Roster Billers | 3 |
| Anesthesiology | 3 |
| Audiologist (billing independently) | 3 |
| General surgery | 2 |
| Mental Health Counselors | 2 |
| Certified nurse midwife | 1 |
| Interventional radiology | 1 |
| Podiatry | 1 |
| Physical medicine and rehabilitation | 1 |
| Clinical psychologist | 1 |
| Hematology/oncology | 1 |
| Centralized Flu | 1 |
| Gastroenterology | 1 |
| Ambulance Service Supplier, e.g., private ambulance companies, funeral homes | 1 |
| Urology | 1 |
| Obstetrics/gynecology | 1 |
| Cardiology | 1 |
| Medical oncology | 1 |
| Clinical Laboratory (Billing Independently) | 1 |
| Neurology | 1 |
| Hand surgery | 1 |
| Ophthalmology | 1 |
| Nephrology | 1 |