| University of Alabama Health Services Foundation, PC | Birmingham | 2,814 |
| Agilitas USA, Inc | Mobile | 831 |
| Anesthesiologists Associated PC | Birmingham | 428 |
| Access Telecare PLLC | Mountain Brk | 413 |
| USA Health Physician Billing Services LLC | Mobile | 339 |
| Health Care Authority for Baptist Health, An Affiliate of Uabhs | Montgomery | 277 |
| Houston County Healthcare Authority | Dothan | 253 |
| Brightside Health Inc | Birmingham | 218 |
| Baptist Health Centers LLC | Birmingham | 198 |
| Encore Rehabilitation, Inc | Bay Minette | 182 |
| American Family Care, LLC | Prattville | 177 |
| Champion Sports Medicine Birmingham, LLC | Hoover | 176 |
| Hh Health System - the Orthopaedic Center LLC | Decatur | 173 |
| Imc-Diagnostic and Medical Clinic LLC | Daphne | 164 |
| Capstone Health Services Foundation PC | Tuscaloosa | 161 |
| Huntsville Hospital Anesthesia | Huntsville | 159 |
| USA Health Anesthesia Billing Services LLC | Mobile | 157 |
| Ultra Health LLC | Red Bay | 148 |
| Flowers Hb Medical Services LLC | Dothan | 145 |
| Premier Anesthesia of Montgomery PC | Montgomery | 129 |
| Healthcare Plus Limited Liability Company | Equality | 125 |
| Birmingham Internal Medicine Associates, LLC | Pell City | 124 |
| The East Alabama Health Care Authority | Opelika | 120 |
| USA Health Community Providers LLC | Mobile | 117 |
| Jackson Hospital and Clinic, Inc | Montgomery | 116 |
| Integrated Behavioral Health Inc | Muscle Shoals | 110 |
| Oncology Specialties, P.C. | Huntsville | 109 |
| Hh Physician Care | Huntsville | 109 |
| Hh Physicians Network | Huntsville | 108 |
| Ivy Creek of Elmore LLC | Wetumpka | 102 |
| Altapointe Health Systems Inc | Mobile | 101 |
| Cahaba Medical Care Foundation | Centreville | 100 |
| Southern Orthopaedic Alliance PLLC | Foley | 98 |
| Newgen Alabama Billing LLC | Sheffield | 96 |
| Gastroenterology Associates of North-Central Alabama Inc | Birmingham | 94 |
| University of Alabama at Birmingham | Birmingham | 94 |
| Hh Heart Center, LLC | Madison | 93 |
| Affinity Physician Services, LLC | Birmingham | 92 |
| Cooper Green Mercy Health Services Authority An Affiliate of Uab | Birmingham | 91 |
| Medical West Hospital Authority, An Affiliate of Uab Health System | Bessemer | 89 |
| Foley Clinic Corp. | Foley | 86 |
| Sportsmed Orthopaedic Specialists | Madison | 86 |
| Whatley Health Services Inc | Tuscaloosa | 83 |
| Vincentian Physician Services LLC | Birmingham | 82 |
| Crmc Medical Group LLC | Cullman | 82 |
| Imc-Hospitalists LLC | Fairhope | 80 |
| Prime Healthcare Services-Gadsden Physician Management LLC | Gadsden | 78 |
| Benchmark Physical Therapy of Alabama, LLC | Mobile | 75 |
| Diabetes Management Partners LLC | Mobile | 73 |
| Drayer Physical Therapy-Alabama, LLC | Oneonta | 70 |
| The Orthopaedic Group PC | Mobile | 68 |
| Wiregrass Clinic LLC | Dothan | 68 |
| P4 Physical Therapy Limited Partnership | Sumiton | 68 |
| University of South Alabama Health Care Authority | Mobile | 67 |
| Radiology of Hunstville PC | Huntsville | 65 |
| Ati Holdings of Alabama LLC | Vestavia | 65 |
| Grayson and Associates PC | Birmingham | 64 |
| Urology Centers of Alabama, PC | Homewood | 62 |
| Emergency Services of Montgomery PC | Prattville | 62 |
| Oak Mountain Group Services, LLC | Birmingham | 61 |
| Urology Associates of Mobile, P.A. | Mobile | 61 |
| Anesthesia Associates | Gadsden | 60 |
| Gadsden Hb Medical Services LLC | Gadsden | 60 |
| River Region Family Medicine, LLC | Wetumpka | 56 |
| Gut PC | Dothan | 56 |
| Premier Health Management Inc | Thomasville | 56 |
| Southern NP Associates LLC | Vestavia | 55 |
| Advantage Family Care Inc | Muscle Shoals | 55 |
| Rehab Advantage Solutions, PLLC | Irondale | 54 |
| Cardiology Associates of Mobile Inc | Fairhope | 54 |
| Greater Mobile Urgent Care | Mobile | 53 |
| Dch Provider Services LLC | Fayette | 53 |
| Birmingham Gastroenterology Associates PC | Birmingham | 53 |
| Eyecare Associates, Inc. | Northport | 52 |
| Uab Callahan Eye Hospital Authority | Birmingham | 52 |
| Franklin Primary Health Center, Inc. | Mobile | 52 |
| Stv Sports Medicine and Orthopedics LLC | Birmingham | 51 |
| The Center for Pain of Montgomery LLC | Montgomery | 50 |
| Anesthesia Associates of East Alabama LLC | Opelika | 50 |
| Emergency Physicians Group | Huntsville | 50 |
| Blue Lake Health Alabama, LLC | Florence | 50 |
| Physynergy LLC | Huntsville | 49 |
| Russell Hospital Corporation | Alexander City | 49 |
| Hughston Clinic Southeast PC | Montgomery | 49 |
| Montgomery Anesthesia Associates, PC | Montgomery | 49 |
| Baldwin Emergency Physicians, P.C.. | Mobile | 48 |
| Wetumpka Urgent Care LLC | Wetumpka | 48 |
| Sixfourthree, LLC | Madison | 48 |
| Hh Health System Crestwood Physicians, LLC | Huntsville | 48 |
| Crestwood Hb Medical Services LLC | Huntsville | 47 |
| The Health Care Authority of the City of Anniston | Anniston | 47 |
| Reono Bertagnolli A Medical Group | Montgomery | 47 |
| Southeast Physician Network, P.C. | Tuscaloosa | 46 |
| Shoals Primary Care, LLC | Sheffield | 46 |
| The Sylacauga Health Care Authority | Sylacauga | 46 |
| Alabama Orthopedic Spine and Sports Medicine Associates P C | Hoover | 46 |
| Southern Immediate Care, LLC | Vestavia Hills | 46 |
| Eastern Shore Anesthesia, P.C. | Fairhope | 46 |
| The Radiology Clinic LLC | Tuscaloosa | 45 |
| Russellville Hospital Inc. | Russellville | 45 |