| Family practice | 73 |
| Nurse practitioner | 55 |
| Internal medicine | 47 |
| Emergency medicine | 39 |
| Physical therapist (private practice) | 34 |
| Physician assistant | 30 |
| Pediatric medicine | 18 |
| Anesthesiology | 18 |
| Mass Immunization Roster Billers | 18 |
| Obstetrics/gynecology | 18 |
| General surgery | 16 |
| Podiatry | 14 |
| Cardiology | 14 |
| Chiropractic | 12 |
| Licensed clinical social worker | 12 |
| Orthopedic surgery | 12 |
| Optometrist | 12 |
| Clinical psychologist | 11 |
| Psychiatry | 11 |
| Pathology | 9 |
| Diagnostic Radiology | 9 |
| Marriage and Family Therapist | 8 |
| Certified Registered Nurse Anesthetist (CRNA) | 6 |
| Centralized Flu | 6 |
| Hematology/oncology | 6 |
| Ophthalmology | 5 |
| General practice | 5 |
| Gastroenterology | 5 |
| Allergy/immunology | 4 |
| Ambulatory Surgical Center | 4 |
| Nephrology | 4 |
| Interventional Cardiology | 4 |
| Otolaryngology | 3 |
| Hospitalist | 3 |
| Ambulance Service Supplier, e.g., private ambulance companies, funeral homes | 3 |
| Interventional radiology | 3 |
| Radiation oncology | 3 |
| Urology | 3 |
| Speech / language pathology | 3 |
| Plastic and reconstructive surgery | 2 |
| Cardiac Electrophysiology | 2 |
| Dermatology | 2 |
| Pulmonary disease | 2 |
| Critical care (intensivists) | 2 |
| Neurology | 1 |
| Infectious disease | 1 |
| Opioid Treatment Program | 1 |
| Surgical oncology | 1 |
| Cardiac surgery | 1 |
| Independent Diagnostic Testing Facility (IDTF) | 1 |
| Occupational therapist (private practice) | 1 |
| Medical oncology | 1 |
| Nuclear medicine | 1 |
| Clinical Laboratory (Billing Independently) | 1 |
| Neurosurgery | 1 |
| Thoracic surgery | 1 |
| Mental Health Counselors | 1 |
| Pain Management | 1 |
| Rheumatology | 1 |