| Nurse practitioner | 68 |
| Licensed clinical social worker | 55 |
| Physician assistant | 50 |
| Family practice | 39 |
| Internal medicine | 36 |
| Physical therapist (private practice) | 25 |
| Chiropractic | 21 |
| Certified Registered Nurse Anesthetist (CRNA) | 16 |
| Emergency medicine | 13 |
| Mental Health Counselors | 13 |
| Optometrist | 12 |
| Psychiatry | 10 |
| Obstetrics/gynecology | 9 |
| Cardiology | 8 |
| Anesthesiology | 7 |
| Occupational therapist (private practice) | 7 |
| Orthopedic surgery | 6 |
| Mass Immunization Roster Billers | 6 |
| Podiatry | 5 |
| Ophthalmology | 5 |
| General surgery | 5 |
| Certified nurse midwife | 4 |
| Neurology | 4 |
| Pulmonary disease | 4 |
| Clinical psychologist | 4 |
| General practice | 4 |
| Rheumatology | 3 |
| Nephrology | 3 |
| Neurosurgery | 3 |
| Hematology/oncology | 3 |
| Centralized Flu | 2 |
| Interventional Cardiology | 2 |
| Plastic and reconstructive surgery | 2 |
| Vascular surgery | 2 |
| Pharmacy | 2 |
| Dermatology | 2 |
| Speech / language pathology | 2 |
| Urology | 1 |
| Hospitalist | 1 |
| Addiction medicine | 1 |
| Otolaryngology | 1 |
| Cardiac Electrophysiology | 1 |
| Independent Diagnostic Testing Facility (IDTF) | 1 |
| Audiologist (billing independently) | 1 |
| Thoracic surgery | 1 |
| Allergy/immunology | 1 |
| Gynecologist/oncologist | 1 |
| Maxillofacial surgery | 1 |
| Osteopathic manipulative therapy | 1 |
| Pain Management | 1 |
| Pediatric medicine | 1 |
| Hospice and Palliative Care | 1 |
| Ambulance Service Supplier, e.g., private ambulance companies, funeral homes | 1 |
| Certified clinical nurse specialist | 1 |
| Radiation oncology | 1 |
| Physical medicine and rehabilitation | 1 |
| Diagnostic Radiology | 1 |
| Gastroenterology | 1 |
| Cardiac surgery | 1 |
| Pathology | 1 |