| Nurse practitioner | 69 |
| Physician assistant | 51 |
| Family practice | 41 |
| Physical therapist (private practice) | 39 |
| Certified Registered Nurse Anesthetist (CRNA) | 22 |
| Licensed clinical social worker | 17 |
| Optometrist | 13 |
| Emergency medicine | 11 |
| Mass Immunization Roster Billers | 10 |
| Internal medicine | 10 |
| Orthopedic surgery | 9 |
| Hospitalist | 8 |
| Diagnostic Radiology | 7 |
| Psychiatry | 7 |
| Chiropractic | 7 |
| Obstetrics/gynecology | 6 |
| Mental Health Counselors | 6 |
| Anesthesiology | 5 |
| General surgery | 5 |
| Clinical psychologist | 4 |
| Urology | 4 |
| Neurology | 4 |
| Occupational therapist (private practice) | 3 |
| Podiatry | 3 |
| Audiologist (billing independently) | 3 |
| Physical medicine and rehabilitation | 3 |
| Otolaryngology | 3 |
| Registered Dietician/Nutrition Professional | 3 |
| Cardiology | 3 |
| Pain Management | 2 |
| Oral surgery (dentists only) | 2 |
| Pulmonary disease | 2 |
| Hematology/oncology | 2 |
| Dermatology | 2 |
| Ophthalmology | 2 |
| Speech / language pathology | 2 |
| Centralized Flu | 2 |
| Ambulatory Surgical Center | 2 |
| Gastroenterology | 2 |
| Vascular surgery | 1 |
| Ambulance Service Supplier, e.g., private ambulance companies, funeral homes | 1 |
| Medical oncology | 1 |
| Preventive medicine | 1 |
| Pathology | 1 |
| Nephrology | 1 |
| Independent Diagnostic Testing Facility (IDTF) | 1 |
| Micrographic Dermatologic Surgery | 1 |
| Hand surgery | 1 |
| Endocrinology | 1 |