| Nurse practitioner | 131 |
| Internal medicine | 27 |
| Physical therapist (private practice) | 25 |
| Physician assistant | 25 |
| Family practice | 23 |
| Certified Registered Nurse Anesthetist (CRNA) | 16 |
| Licensed clinical social worker | 16 |
| Mental Health Counselors | 14 |
| Optometrist | 12 |
| Emergency medicine | 11 |
| Mass Immunization Roster Billers | 9 |
| Pediatric medicine | 7 |
| Obstetrics/gynecology | 6 |
| Chiropractic | 6 |
| Cardiology | 6 |
| Neurology | 5 |
| Psychiatry | 5 |
| Occupational therapist (private practice) | 5 |
| General surgery | 4 |
| Clinical psychologist | 4 |
| Centralized Flu | 4 |
| Anesthesiology | 4 |
| Podiatry | 3 |
| Orthopedic surgery | 3 |
| Pathology | 3 |
| Diagnostic Radiology | 3 |
| Hematology/oncology | 3 |
| Radiation oncology | 3 |
| Pulmonary disease | 3 |
| Vascular surgery | 3 |
| Nephrology | 3 |
| Neurosurgery | 2 |
| Urology | 2 |
| Ambulance Service Supplier, e.g., private ambulance companies, funeral homes | 2 |
| Pharmacy | 2 |
| Sleep Medicine | 2 |
| Otolaryngology | 2 |
| Ophthalmology | 2 |
| Plastic and reconstructive surgery | 2 |
| Gastroenterology | 2 |
| Audiologist (billing independently) | 2 |
| Physical medicine and rehabilitation | 2 |
| General practice | 2 |
| Dermatology | 2 |
| Hospitalist | 2 |
| Ambulatory Surgical Center | 1 |
| Pain Management | 1 |
| Critical care (intensivists) | 1 |
| Opioid Treatment Program | 1 |
| Marriage and Family Therapist | 1 |
| Clinical Laboratory (Billing Independently) | 1 |
| Unknown physician specialty | 1 |
| Registered Dietician/Nutrition Professional | 1 |
| Rheumatology | 1 |
| Hand surgery | 1 |
| Allergy/immunology | 1 |