| Nurse practitioner | 97 |
| Physician assistant | 51 |
| Family practice | 31 |
| Certified Registered Nurse Anesthetist (CRNA) | 25 |
| Internal medicine | 23 |
| Emergency medicine | 14 |
| Ambulance Service Supplier, e.g., private ambulance companies, funeral homes | 11 |
| Chiropractic | 11 |
| Licensed clinical social worker | 9 |
| Anesthesiology | 9 |
| Optometrist | 9 |
| Obstetrics/gynecology | 8 |
| Diagnostic Radiology | 8 |
| Cardiology | 8 |
| Pathology | 6 |
| Mass Immunization Roster Billers | 6 |
| General surgery | 6 |
| Orthopedic surgery | 6 |
| Psychiatry | 5 |
| Physical therapist (private practice) | 5 |
| Pulmonary disease | 5 |
| Audiologist (billing independently) | 4 |
| Clinical psychologist | 4 |
| Gastroenterology | 4 |
| Hematology/oncology | 4 |
| Otolaryngology | 4 |
| Nephrology | 4 |
| Physical medicine and rehabilitation | 4 |
| Ambulatory Surgical Center | 4 |
| Urology | 3 |
| Ophthalmology | 3 |
| Podiatry | 3 |
| Occupational therapist (private practice) | 3 |
| Certified nurse midwife | 3 |
| Plastic and reconstructive surgery | 2 |
| Neurology | 2 |
| Centralized Flu | 2 |
| Speech / language pathology | 2 |
| Certified clinical nurse specialist | 2 |
| Mental Health Counselors | 2 |
| Infectious disease | 2 |
| Clinical Laboratory (Billing Independently) | 1 |
| Radiation oncology | 1 |
| Rheumatology | 1 |
| Sleep Medicine | 1 |
| Colorectal surgery (formerly proctology) | 1 |
| Neurosurgery | 1 |
| Registered Dietician/Nutrition Professional | 1 |
| Endocrinology | 1 |
| Unknown Provider | 1 |
| Thoracic surgery | 1 |
| Pain Management | 1 |
| General practice | 1 |
| Cardiac surgery | 1 |
| Medical oncology | 1 |
| Neuropsychiatry | 1 |