| Nurse practitioner | 112 |
| Physician assistant | 62 |
| Physical therapist (private practice) | 49 |
| Licensed clinical social worker | 35 |
| Internal medicine | 32 |
| Emergency medicine | 24 |
| Mental Health Counselors | 22 |
| Family practice | 20 |
| Diagnostic Radiology | 17 |
| Certified Registered Nurse Anesthetist (CRNA) | 13 |
| Mass Immunization Roster Billers | 13 |
| Psychiatry | 11 |
| Neurology | 11 |
| Anesthesiology | 11 |
| Orthopedic surgery | 11 |
| Chiropractic | 10 |
| Optometrist | 10 |
| General surgery | 10 |
| Occupational therapist (private practice) | 10 |
| Hospitalist | 8 |
| Obstetrics/gynecology | 8 |
| Cardiology | 8 |
| Podiatry | 7 |
| Pediatric medicine | 7 |
| Gastroenterology | 7 |
| Ophthalmology | 6 |
| Hematology/oncology | 6 |
| Dermatology | 6 |
| Registered Dietician/Nutrition Professional | 6 |
| Endocrinology | 5 |
| Centralized Flu | 5 |
| Certified nurse midwife | 5 |
| Ambulatory Surgical Center | 5 |
| Speech / language pathology | 5 |
| Audiologist (billing independently) | 4 |
| Vascular surgery | 4 |
| Nephrology | 4 |
| Clinical psychologist | 4 |
| Critical care (intensivists) | 3 |
| Pharmacy | 3 |
| Urology | 3 |
| Ambulance Service Supplier, e.g., private ambulance companies, funeral homes | 2 |
| Otolaryngology | 2 |
| Neurosurgery | 2 |
| Pain Management | 2 |
| Opioid Treatment Program | 2 |
| Pulmonary disease | 2 |
| Nuclear medicine | 2 |
| Infectious disease | 2 |
| Rheumatology | 1 |
| Interventional Pain Management (IPM) | 1 |
| Clinical Laboratory (Billing Independently) | 1 |
| Neuropsychiatry | 1 |
| General practice | 1 |
| Physical medicine and rehabilitation | 1 |
| Medical oncology | 1 |
| Hospice and Palliative Care | 1 |
| Radiation oncology | 1 |