| Nurse practitioner | 70 |
| Physician assistant | 56 |
| Internal medicine | 40 |
| Diagnostic Radiology | 37 |
| Licensed clinical social worker | 31 |
| Emergency medicine | 30 |
| Physical therapist (private practice) | 26 |
| Family practice | 25 |
| Anesthesiology | 24 |
| Chiropractic | 20 |
| Psychiatry | 18 |
| Orthopedic surgery | 18 |
| Marriage and Family Therapist | 17 |
| Obstetrics/gynecology | 15 |
| Ophthalmology | 13 |
| Hospitalist | 12 |
| Certified Registered Nurse Anesthetist (CRNA) | 12 |
| General surgery | 10 |
| Mass Immunization Roster Billers | 10 |
| Podiatry | 9 |
| Registered Dietician/Nutrition Professional | 8 |
| Pathology | 8 |
| Clinical psychologist | 8 |
| Optometrist | 8 |
| Cardiology | 8 |
| Gastroenterology | 7 |
| Hematology/oncology | 6 |
| Certified nurse midwife | 6 |
| Urology | 6 |
| Physical medicine and rehabilitation | 5 |
| Neurosurgery | 5 |
| Ambulatory Surgical Center | 5 |
| Otolaryngology | 4 |
| General practice | 4 |
| Dermatology | 4 |
| Nephrology | 3 |
| Interventional radiology | 3 |
| Pharmacy | 3 |
| Infectious disease | 2 |
| Endocrinology | 2 |
| Speech / language pathology | 2 |
| Critical care (intensivists) | 2 |
| Centralized Flu | 2 |
| Pediatric medicine | 2 |
| Colorectal surgery (formerly proctology) | 2 |
| Mental Health Counselors | 2 |
| Neurology | 2 |
| Hospice and Palliative Care | 2 |
| Radiation oncology | 2 |
| Thoracic surgery | 2 |
| Hematology | 1 |
| Oral surgery (dentists only) | 1 |
| Surgical oncology | 1 |
| Clinical Laboratory (Billing Independently) | 1 |
| Cardiac surgery | 1 |
| Rheumatology | 1 |
| Allergy/immunology | 1 |
| Vascular surgery | 1 |
| Pulmonary disease | 1 |
| Unknown physician specialty | 1 |
| Audiologist (billing independently) | 1 |
| Opioid Treatment Program | 1 |
| Interventional Pain Management (IPM) | 1 |
| Psychologist (billing independently) | 1 |
| Cardiac Electrophysiology | 1 |