| Nurse practitioner | 110 |
| Physician assistant | 83 |
| Family practice | 47 |
| Physical therapist (private practice) | 43 |
| Internal medicine | 41 |
| Certified Registered Nurse Anesthetist (CRNA) | 37 |
| Licensed clinical social worker | 35 |
| Emergency medicine | 20 |
| Mass Immunization Roster Billers | 16 |
| Optometrist | 15 |
| Mental Health Counselors | 14 |
| Hospitalist | 14 |
| Chiropractic | 14 |
| Anesthesiology | 14 |
| Obstetrics/gynecology | 12 |
| General surgery | 12 |
| Certified nurse midwife | 11 |
| Orthopedic surgery | 11 |
| Cardiology | 10 |
| Ophthalmology | 10 |
| Nephrology | 9 |
| Dermatology | 9 |
| Psychiatry | 9 |
| Gastroenterology | 9 |
| Audiologist (billing independently) | 8 |
| Otolaryngology | 6 |
| Pulmonary disease | 6 |
| Occupational therapist (private practice) | 5 |
| Pediatric medicine | 4 |
| Centralized Flu | 4 |
| Podiatry | 4 |
| Endocrinology | 4 |
| Hematology/oncology | 4 |
| Infectious disease | 4 |
| Urology | 4 |
| Diagnostic Radiology | 4 |
| Physical medicine and rehabilitation | 4 |
| Pathology | 3 |
| Speech / language pathology | 3 |
| Neurology | 3 |
| Clinical Laboratory (Billing Independently) | 2 |
| Marriage and Family Therapist | 2 |
| Vascular surgery | 2 |
| Clinical psychologist | 2 |
| Registered Dietician/Nutrition Professional | 2 |
| Neurosurgery | 2 |
| Ambulatory Surgical Center | 2 |
| Thoracic surgery | 1 |
| Peripheral vascular disease | 1 |
| Independent Diagnostic Testing Facility (IDTF) | 1 |
| Sleep Medicine | 1 |
| Hand surgery | 1 |
| Interventional radiology | 1 |
| Plastic and reconstructive surgery | 1 |
| Rheumatology | 1 |
| Unknown Provider | 1 |
| Cardiac surgery | 1 |
| Interventional Pain Management (IPM) | 1 |
| Interventional Cardiology | 1 |
| Oral surgery (dentists only) | 1 |
| Radiation oncology | 1 |
| Maxillofacial surgery | 1 |
| Sports Medicine | 1 |
| Ambulance Service Supplier, e.g., private ambulance companies, funeral homes | 1 |