| Nurse practitioner | 320 |
| Physician assistant | 183 |
| Family practice | 123 |
| Internal medicine | 77 |
| Certified Registered Nurse Anesthetist (CRNA) | 69 |
| Emergency medicine | 53 |
| Clinical psychologist | 51 |
| Mental Health Counselors | 40 |
| Diagnostic Radiology | 40 |
| Optometrist | 39 |
| Anesthesiology | 37 |
| Licensed clinical social worker | 32 |
| Chiropractic | 31 |
| Obstetrics/gynecology | 31 |
| General surgery | 28 |
| Mass Immunization Roster Billers | 27 |
| Orthopedic surgery | 26 |
| Anesthesiologist Assistant | 25 |
| Hospitalist | 24 |
| Psychiatry | 23 |
| Physical therapist (private practice) | 22 |
| Ophthalmology | 18 |
| Gastroenterology | 14 |
| Neurology | 13 |
| Pediatric medicine | 13 |
| Interventional Cardiology | 12 |
| Otolaryngology | 11 |
| Physical medicine and rehabilitation | 11 |
| Podiatry | 11 |
| Pulmonary disease | 11 |
| Urology | 10 |
| Hematology/oncology | 10 |
| Pathology | 10 |
| Cardiology | 9 |
| Centralized Flu | 9 |
| Neurosurgery | 9 |
| Dermatology | 9 |
| Endocrinology | 8 |
| Sports Medicine | 7 |
| Allergy/immunology | 7 |
| Nephrology | 6 |
| Thoracic surgery | 6 |
| Pharmacy | 6 |
| Vascular surgery | 5 |
| Audiologist (billing independently) | 5 |
| Plastic and reconstructive surgery | 5 |
| Hand surgery | 4 |
| Radiation oncology | 4 |
| Interventional radiology | 4 |
| Cardiac Electrophysiology | 4 |
| Critical care (intensivists) | 4 |
| Infectious disease | 4 |
| Rheumatology | 4 |
| Occupational therapist (private practice) | 4 |
| Maxillofacial surgery | 3 |
| Colorectal surgery (formerly proctology) | 3 |
| Pain Management | 3 |
| Osteopathic manipulative therapy | 3 |
| Gynecologist/oncologist | 2 |
| Marriage and Family Therapist | 2 |
| Interventional Pain Management (IPM) | 2 |
| Opioid Treatment Program | 2 |
| Speech / language pathology | 2 |
| Geriatric medicine | 2 |
| Ambulatory Surgical Center | 2 |
| Sleep Medicine | 2 |
| Registered Dietician/Nutrition Professional | 2 |
| Nuclear medicine | 1 |
| Certified nurse midwife | 1 |
| Clinical Laboratory (Billing Independently) | 1 |
| Psychologist (billing independently) | 1 |
| General practice | 1 |
| Medical oncology | 1 |
| Cardiac surgery | 1 |
| Addiction medicine | 1 |
| Independent Diagnostic Testing Facility (IDTF) | 1 |
| General Psychiatry | 1 |
| Hospice and Palliative Care | 1 |
| Certified clinical nurse specialist | 1 |