| Nurse practitioner | 122 |
| Family practice | 46 |
| Physician assistant | 45 |
| Internal medicine | 43 |
| Certified Registered Nurse Anesthetist (CRNA) | 32 |
| Physical therapist (private practice) | 24 |
| Emergency medicine | 19 |
| Licensed clinical social worker | 19 |
| Chiropractic | 19 |
| Anesthesiology | 18 |
| Mental Health Counselors | 14 |
| Optometrist | 12 |
| Orthopedic surgery | 11 |
| Centralized Flu | 11 |
| Diagnostic Radiology | 11 |
| Gastroenterology | 10 |
| General practice | 9 |
| Ophthalmology | 9 |
| Mass Immunization Roster Billers | 9 |
| Cardiology | 9 |
| Dermatology | 7 |
| Podiatry | 7 |
| Obstetrics/gynecology | 7 |
| General surgery | 7 |
| Pathology | 6 |
| Occupational therapist (private practice) | 6 |
| Speech / language pathology | 5 |
| Ambulatory Surgical Center | 5 |
| Clinical psychologist | 5 |
| Nephrology | 5 |
| Neurology | 5 |
| Urology | 5 |
| Registered Dietician/Nutrition Professional | 4 |
| Pain Management | 4 |
| Hematology/oncology | 4 |
| Vascular surgery | 4 |
| Audiologist (billing independently) | 3 |
| Interventional Cardiology | 3 |
| Independent Diagnostic Testing Facility (IDTF) | 3 |
| Psychiatry | 3 |
| Anesthesiologist Assistant | 3 |
| Radiation oncology | 3 |
| Thoracic surgery | 3 |
| Pulmonary disease | 2 |
| Pediatric medicine | 2 |
| Critical care (intensivists) | 2 |
| Infectious disease | 2 |
| All other suppliers, e.g., Drug Stores | 2 |
| Medical oncology | 2 |
| Cardiac Electrophysiology | 2 |
| Pharmacy | 1 |
| Allergy/immunology | 1 |
| Micrographic Dermatologic Surgery | 1 |
| Interventional radiology | 1 |
| Interventional Pain Management (IPM) | 1 |
| Otolaryngology | 1 |
| Clinical Laboratory (Billing Independently) | 1 |
| Opioid Treatment Program | 1 |
| Oral surgery (dentists only) | 1 |
| Nuclear medicine | 1 |
| Ambulance Service Supplier, e.g., private ambulance companies, funeral homes | 1 |
| Physical medicine and rehabilitation | 1 |
| Hospitalist | 1 |
| Cardiac surgery | 1 |
| Rheumatology | 1 |