| Nurse practitioner | 108 |
| Physician assistant | 89 |
| Family practice | 82 |
| Internal medicine | 36 |
| Anesthesiology | 34 |
| Mental Health Counselors | 28 |
| Emergency medicine | 24 |
| Optometrist | 16 |
| General surgery | 16 |
| Physical therapist (private practice) | 15 |
| Cardiology | 13 |
| Licensed clinical social worker | 13 |
| Chiropractic | 11 |
| Orthopedic surgery | 10 |
| Obstetrics/gynecology | 10 |
| Clinical psychologist | 10 |
| Ophthalmology | 9 |
| Mass Immunization Roster Billers | 9 |
| Urology | 8 |
| Diagnostic Radiology | 8 |
| Psychiatry | 7 |
| Hospitalist | 7 |
| Dermatology | 6 |
| Gastroenterology | 6 |
| Certified Registered Nurse Anesthetist (CRNA) | 6 |
| Neurology | 6 |
| Ambulance Service Supplier, e.g., private ambulance companies, funeral homes | 5 |
| Pulmonary disease | 5 |
| Radiation oncology | 5 |
| Audiologist (billing independently) | 5 |
| Nephrology | 4 |
| Otolaryngology | 4 |
| Pediatric medicine | 4 |
| Pathology | 4 |
| Endocrinology | 3 |
| Vascular surgery | 3 |
| Marriage and Family Therapist | 3 |
| Certified nurse midwife | 3 |
| Physical medicine and rehabilitation | 3 |
| Plastic and reconstructive surgery | 3 |
| Medical oncology | 3 |
| Hematology/oncology | 3 |
| Thoracic surgery | 3 |
| Infectious disease | 3 |
| Rheumatology | 3 |
| Podiatry | 3 |
| Occupational therapist (private practice) | 2 |
| Hand surgery | 2 |
| Registered Dietician/Nutrition Professional | 2 |
| Ambulatory Surgical Center | 2 |
| Allergy/immunology | 2 |
| Interventional radiology | 2 |
| Neurosurgery | 2 |
| Pain Management | 2 |
| Centralized Flu | 2 |
| Critical care (intensivists) | 2 |
| Unknown Provider | 1 |
| General practice | 1 |
| Interventional Cardiology | 1 |
| Micrographic Dermatologic Surgery | 1 |
| Cardiac surgery | 1 |
| Addiction medicine | 1 |
| Oral surgery (dentists only) | 1 |
| Osteopathic manipulative therapy | 1 |
| Cardiac Electrophysiology | 1 |
| Opioid Treatment Program | 1 |
| Dentist | 1 |