| Nurse practitioner | 165 |
| Physician assistant | 74 |
| Physical therapist (private practice) | 42 |
| Chiropractic | 37 |
| Internal medicine | 34 |
| Family practice | 32 |
| Optometrist | 22 |
| Emergency medicine | 21 |
| Mental Health Counselors | 21 |
| Licensed clinical social worker | 20 |
| Anesthesiology | 18 |
| Certified Registered Nurse Anesthetist (CRNA) | 17 |
| Orthopedic surgery | 16 |
| Cardiology | 13 |
| Clinical psychologist | 11 |
| Mass Immunization Roster Billers | 10 |
| Podiatry | 10 |
| Hospitalist | 9 |
| General surgery | 9 |
| Dermatology | 8 |
| Diagnostic Radiology | 8 |
| Occupational therapist (private practice) | 8 |
| Critical care (intensivists) | 7 |
| Ambulatory Surgical Center | 7 |
| Obstetrics/gynecology | 7 |
| Physical medicine and rehabilitation | 6 |
| Urology | 5 |
| Interventional Cardiology | 5 |
| Psychiatry | 5 |
| Neurology | 4 |
| Speech / language pathology | 4 |
| Ophthalmology | 4 |
| Certified nurse midwife | 4 |
| Nephrology | 4 |
| Ambulance Service Supplier, e.g., private ambulance companies, funeral homes | 3 |
| Audiologist (billing independently) | 3 |
| Registered Dietician/Nutrition Professional | 3 |
| Plastic and reconstructive surgery | 3 |
| Gastroenterology | 3 |
| Hematology/oncology | 3 |
| Neurosurgery | 3 |
| Radiation oncology | 2 |
| Centralized Flu | 2 |
| Otolaryngology | 2 |
| Cardiac Electrophysiology | 2 |
| Pharmacy | 2 |
| Endocrinology | 2 |
| Pulmonary disease | 2 |
| Pathology | 2 |
| Opioid Treatment Program | 2 |
| Portable X-Ray Supplier (Billing Independently) | 1 |
| Medical oncology | 1 |
| General practice | 1 |
| Vascular surgery | 1 |
| Preventive medicine | 1 |
| Cardiac surgery | 1 |
| Osteopathic manipulative therapy | 1 |
| Hospice and Palliative Care | 1 |
| Interventional Pain Management (IPM) | 1 |
| Infectious disease | 1 |
| Independent Diagnostic Testing Facility (IDTF) | 1 |
| Thoracic surgery | 1 |