| Nurse practitioner | 64 |
| Chiropractic | 30 |
| Physician assistant | 30 |
| Family practice | 28 |
| Physical therapist (private practice) | 24 |
| Licensed clinical social worker | 15 |
| Emergency medicine | 14 |
| Optometrist | 13 |
| Mental Health Counselors | 11 |
| Occupational therapist (private practice) | 11 |
| Internal medicine | 11 |
| Certified Registered Nurse Anesthetist (CRNA) | 10 |
| Anesthesiology | 8 |
| Hospitalist | 8 |
| Psychiatry | 7 |
| Orthopedic surgery | 6 |
| Obstetrics/gynecology | 5 |
| Mass Immunization Roster Billers | 5 |
| Audiologist (billing independently) | 5 |
| Podiatry | 4 |
| Diagnostic Radiology | 4 |
| Pathology | 4 |
| Dermatology | 4 |
| Neurology | 4 |
| Ambulance Service Supplier, e.g., private ambulance companies, funeral homes | 3 |
| Pulmonary disease | 3 |
| Cardiology | 3 |
| Clinical psychologist | 3 |
| Endocrinology | 3 |
| Centralized Flu | 3 |
| Registered Dietician/Nutrition Professional | 3 |
| Ophthalmology | 3 |
| General surgery | 2 |
| Gastroenterology | 2 |
| Interventional radiology | 2 |
| Otolaryngology | 2 |
| Radiation oncology | 1 |
| Geriatric medicine | 1 |
| Interventional Cardiology | 1 |
| Physical medicine and rehabilitation | 1 |
| General Psychiatry | 1 |
| Preventive medicine | 1 |
| Clinical Laboratory (Billing Independently) | 1 |
| Urology | 1 |
| Pain Management | 1 |
| Hematology/oncology | 1 |
| Rheumatology | 1 |
| Speech / language pathology | 1 |
| Allergy/immunology | 1 |