| Nurse practitioner | 104 |
| Physician assistant | 48 |
| Internal medicine | 45 |
| Licensed clinical social worker | 35 |
| Physical therapist (private practice) | 26 |
| Certified Registered Nurse Anesthetist (CRNA) | 19 |
| Mental Health Counselors | 15 |
| Mass Immunization Roster Billers | 12 |
| Anesthesiology | 10 |
| Emergency medicine | 10 |
| Chiropractic | 10 |
| Family practice | 10 |
| General surgery | 10 |
| Ambulance Service Supplier, e.g., private ambulance companies, funeral homes | 9 |
| Obstetrics/gynecology | 9 |
| Cardiology | 9 |
| Diagnostic Radiology | 9 |
| Registered Dietician/Nutrition Professional | 6 |
| Psychiatry | 5 |
| Urology | 5 |
| Nephrology | 5 |
| Orthopedic surgery | 5 |
| Podiatry | 4 |
| Clinical psychologist | 4 |
| Pulmonary disease | 4 |
| Pharmacy | 3 |
| Ophthalmology | 3 |
| Otolaryngology | 3 |
| Ambulatory Surgical Center | 3 |
| Occupational therapist (private practice) | 3 |
| Endocrinology | 2 |
| Interventional Pain Management (IPM) | 2 |
| Physical medicine and rehabilitation | 2 |
| Neurology | 2 |
| Vascular surgery | 2 |
| Gastroenterology | 2 |
| Neurosurgery | 2 |
| Audiologist (billing independently) | 2 |
| Optometrist | 2 |
| Opioid Treatment Program | 2 |
| Neuropsychiatry | 1 |
| Plastic and reconstructive surgery | 1 |
| Hospitalist | 1 |
| Osteopathic manipulative therapy | 1 |
| Critical care (intensivists) | 1 |
| Pediatric medicine | 1 |
| Thoracic surgery | 1 |
| Cardiac surgery | 1 |
| Centralized Flu | 1 |
| Dermatology | 1 |
| Cardiac Electrophysiology | 1 |
| Portable X-Ray Supplier (Billing Independently) | 1 |
| Geriatric medicine | 1 |
| Hematology/oncology | 1 |
| Radiation oncology | 1 |
| Rheumatology | 1 |
| Hospice and Palliative Care | 1 |
| Certified nurse midwife | 1 |