| Nurse practitioner | 255 |
| Family practice | 70 |
| Certified Registered Nurse Anesthetist (CRNA) | 61 |
| Internal medicine | 59 |
| Physician assistant | 50 |
| Emergency medicine | 49 |
| Optometrist | 48 |
| Physical therapist (private practice) | 46 |
| Diagnostic Radiology | 33 |
| Anesthesiology | 30 |
| Chiropractic | 29 |
| Hospitalist | 28 |
| Orthopedic surgery | 23 |
| Obstetrics/gynecology | 21 |
| Mental Health Counselors | 20 |
| Mass Immunization Roster Billers | 19 |
| General surgery | 17 |
| Licensed clinical social worker | 17 |
| Psychiatry | 15 |
| Ambulatory Surgical Center | 12 |
| Ophthalmology | 12 |
| Rheumatology | 11 |
| Cardiology | 10 |
| Gastroenterology | 9 |
| Speech / language pathology | 9 |
| Dermatology | 9 |
| Podiatry | 8 |
| Pulmonary disease | 8 |
| Centralized Flu | 7 |
| Pathology | 7 |
| Otolaryngology | 7 |
| Urology | 7 |
| Neurosurgery | 7 |
| Interventional Cardiology | 6 |
| Clinical Laboratory (Billing Independently) | 6 |
| Hematology/oncology | 6 |
| Occupational therapist (private practice) | 6 |
| Pain Management | 5 |
| Radiation oncology | 5 |
| Neurology | 5 |
| Audiologist (billing independently) | 5 |
| Ambulance Service Supplier, e.g., private ambulance companies, funeral homes | 5 |
| Nephrology | 5 |
| Clinical psychologist | 5 |
| Pediatric medicine | 5 |
| Endocrinology | 4 |
| General practice | 3 |
| Interventional Pain Management (IPM) | 3 |
| Vascular surgery | 3 |
| Pharmacy | 3 |
| Thoracic surgery | 3 |
| Infectious disease | 3 |
| Plastic and reconstructive surgery | 3 |
| Surgical oncology | 2 |
| Gynecologist/oncologist | 2 |
| Independent Diagnostic Testing Facility (IDTF) | 2 |
| Cardiac Electrophysiology | 2 |
| Physical medicine and rehabilitation | 2 |
| Registered Dietician/Nutrition Professional | 2 |
| Colorectal surgery (formerly proctology) | 2 |
| Medical oncology | 2 |
| Hand surgery | 2 |
| Critical care (intensivists) | 1 |
| Hematology | 1 |
| Addiction medicine | 1 |
| Allergy/immunology | 1 |
| Interventional radiology | 1 |
| Hospice and Palliative Care | 1 |