| Nurse practitioner | 106 |
| Physician assistant | 26 |
| Certified Registered Nurse Anesthetist (CRNA) | 25 |
| Internal medicine | 24 |
| Emergency medicine | 20 |
| Mental Health Counselors | 18 |
| Licensed clinical social worker | 18 |
| Family practice | 13 |
| Chiropractic | 13 |
| Physical therapist (private practice) | 12 |
| Ambulance Service Supplier, e.g., private ambulance companies, funeral homes | 10 |
| Obstetrics/gynecology | 9 |
| Mass Immunization Roster Billers | 9 |
| Podiatry | 9 |
| General surgery | 9 |
| Optometrist | 9 |
| Anesthesiology | 8 |
| Pulmonary disease | 7 |
| Cardiology | 6 |
| Nephrology | 5 |
| Endocrinology | 4 |
| Hospitalist | 4 |
| Ophthalmology | 4 |
| Otolaryngology | 4 |
| Anesthesiologist Assistant | 4 |
| Diagnostic Radiology | 4 |
| Audiologist (billing independently) | 3 |
| Clinical psychologist | 3 |
| Pathology | 3 |
| Occupational therapist (private practice) | 3 |
| Interventional Cardiology | 3 |
| Orthopedic surgery | 3 |
| Neurology | 3 |
| Psychiatry | 3 |
| Hematology | 2 |
| Physical medicine and rehabilitation | 2 |
| Nuclear medicine | 2 |
| Interventional Pain Management (IPM) | 2 |
| Plastic and reconstructive surgery | 2 |
| Urology | 2 |
| Sports Medicine | 2 |
| Registered Dietician/Nutrition Professional | 2 |
| Neurosurgery | 2 |
| Certified nurse midwife | 2 |
| Ambulatory Surgical Center | 1 |
| Thoracic surgery | 1 |
| Rheumatology | 1 |
| General practice | 1 |
| Gastroenterology | 1 |
| Dermatology | 1 |
| Critical care (intensivists) | 1 |
| Infectious disease | 1 |
| Cardiac Electrophysiology | 1 |
| Allergy/immunology | 1 |
| Opioid Treatment Program | 1 |
| Medical oncology | 1 |
| Vascular surgery | 1 |
| Hematology/oncology | 1 |