| Physician assistant | 94 |
| Nurse practitioner | 87 |
| Family practice | 62 |
| Physical therapist (private practice) | 55 |
| Mental Health Counselors | 35 |
| Licensed clinical social worker | 31 |
| Emergency medicine | 23 |
| Optometrist | 23 |
| Internal medicine | 20 |
| Chiropractic | 20 |
| Certified Registered Nurse Anesthetist (CRNA) | 19 |
| Occupational therapist (private practice) | 15 |
| Anesthesiology | 14 |
| Clinical psychologist | 13 |
| Mass Immunization Roster Billers | 12 |
| General surgery | 11 |
| Obstetrics/gynecology | 11 |
| Gastroenterology | 7 |
| Hematology/oncology | 7 |
| Pulmonary disease | 6 |
| Speech / language pathology | 5 |
| Podiatry | 5 |
| Nephrology | 5 |
| Neurology | 4 |
| Psychiatry | 4 |
| Endocrinology | 4 |
| Cardiology | 4 |
| Certified nurse midwife | 4 |
| Audiologist (billing independently) | 4 |
| Centralized Flu | 4 |
| Ophthalmology | 4 |
| Registered Dietician/Nutrition Professional | 4 |
| Vascular surgery | 3 |
| Neurosurgery | 3 |
| Otolaryngology | 3 |
| Rheumatology | 3 |
| Certified clinical nurse specialist | 3 |
| Infectious disease | 3 |
| Pathology | 2 |
| Orthopedic surgery | 2 |
| Cardiac surgery | 2 |
| Diagnostic Radiology | 2 |
| Radiation oncology | 2 |
| Interventional radiology | 2 |
| Clinical Laboratory (Billing Independently) | 2 |
| Dermatology | 2 |
| Hospitalist | 2 |
| Marriage and Family Therapist | 2 |
| Ambulatory Surgical Center | 2 |
| Physical medicine and rehabilitation | 2 |
| Interventional Pain Management (IPM) | 1 |
| Opioid Treatment Program | 1 |
| Thoracic surgery | 1 |
| Pain Management | 1 |
| Cardiac Electrophysiology | 1 |
| Ambulance Service Supplier, e.g., private ambulance companies, funeral homes | 1 |
| General practice | 1 |
| Pediatric medicine | 1 |
| Medical Genetics and Genomics | 1 |
| Critical care (intensivists) | 1 |
| Surgical oncology | 1 |
| Allergy/immunology | 1 |