| Nurse practitioner | 166 |
| Physical therapist (private practice) | 44 |
| Internal medicine | 32 |
| Family practice | 28 |
| Mass Immunization Roster Billers | 21 |
| Optometrist | 20 |
| Mental Health Counselors | 16 |
| Certified Registered Nurse Anesthetist (CRNA) | 15 |
| Chiropractic | 15 |
| Physician assistant | 13 |
| Licensed clinical social worker | 11 |
| General surgery | 9 |
| Emergency medicine | 9 |
| Obstetrics/gynecology | 8 |
| Osteopathic manipulative therapy | 6 |
| Occupational therapist (private practice) | 6 |
| Ambulance Service Supplier, e.g., private ambulance companies, funeral homes | 5 |
| Centralized Flu | 5 |
| Interventional Cardiology | 5 |
| Audiologist (billing independently) | 4 |
| Ophthalmology | 4 |
| Podiatry | 4 |
| Diagnostic Radiology | 4 |
| Pharmacy | 4 |
| Ambulatory Surgical Center | 4 |
| Orthopedic surgery | 4 |
| Psychiatry | 4 |
| Anesthesiology | 4 |
| Neurology | 3 |
| Nephrology | 3 |
| Dermatology | 3 |
| Pulmonary disease | 3 |
| Pediatric medicine | 3 |
| Otolaryngology | 2 |
| Hematology/oncology | 2 |
| Speech / language pathology | 2 |
| Cardiology | 2 |
| Gastroenterology | 2 |
| Physical medicine and rehabilitation | 2 |
| Pain Management | 1 |
| Urology | 1 |
| Neurosurgery | 1 |
| Hospitalist | 1 |
| Plastic and reconstructive surgery | 1 |
| Independent Diagnostic Testing Facility (IDTF) | 1 |
| Radiation oncology | 1 |
| Sports Medicine | 1 |
| Gynecologist/oncologist | 1 |
| Cardiac Electrophysiology | 1 |
| Endocrinology | 1 |
| Infectious disease | 1 |
| Pathology | 1 |
| Marriage and Family Therapist | 1 |