| University Physicians Incorporated | Aurora | 3,215 |
| Poudre Valley Medical Group LLC | Denver | 2,440 |
| Musc Community Physicians | Centennial | 1,544 |
| Colorado Permanente Medical Group PC | Denver | 1,327 |
| Catholic Health Initiatives Colorado | Lakewood | 1,225 |
| Denver Health and Hospital Authority | Denver | 849 |
| Portercare Adventist Health System | Denver | 774 |
| Family Care Center LLC | Colorado Springs | 734 |
| Intermountain Medical Group Denver LLC | Broomfield | 568 |
| Select Physical Therapy of West Denver Limited Partnership | Woodland Park | 548 |
| US Anesthesia Partners of Colorado Inc | Greenwood Village | 461 |
| Orthopedic Centers of Colorado LLC | Aurora | 324 |
| Heart Centered Counseling PC | Colorado Springs | 311 |
| Panorama Orthopedics and Spine Center PC | Golden | 308 |
| Intermountain Medical Group Grand Junction, LLC | Grand Junction | 296 |
| Banner Health Physicians Colorado LLC | Greeley | 261 |
| Uchealth Imaging Services LLC | Broomfield | 258 |
| National Jewish Health | Denver | 247 |
| Colorado Luna Care Physical Therapy LLC | Denver | 212 |
| Valley View Hospital Association | Carbondale | 202 |
| Optumcare Colorado Medical Group LLC | Denver | 182 |
| Usacs Community Emergency Services of Colorado Inc. | Arvada | 175 |
| Carepoint Emergency Medicine, PLLC | Englewood | 161 |
| Northern Colorado Anesthesia Professionals PLLC | Fort Collins | 160 |
| Critical Care and Pulmonary Consultants, P.C. | Greenwood Village | 158 |
| Lutheran Hospital Association of the San Luis Valley | Alamosa | 150 |
| Radiology Imaging Associates PC | Englewood | 149 |
| Montrose Memorial Hospital, Inc | Montrose | 148 |
| Orthopaedic and Spine Center of the Rockies PC | Greeley | 145 |
| Uchealth Community Services | Englewood | 133 |
| Rocky Mountain Cancer Centers LLP | Denver | 132 |
| Yampa Valley Medical Center | Steamboat Spr | 131 |
| Arapahoe Mental Health Center Inc | Englewood | 131 |
| Medical Imaging of Colorado Radiology Imaging Assc PC Etal PT | Lone Tree | 127 |
| Solace Health Medical Group Inc | Denver | 127 |
| Physician Housecalls LLC | Lakewood | 126 |
| Peak Vista Community Health Centers | Colorado Springs | 122 |
| Vail Clinic Inc | Vail | 119 |
| Summitstone Health Partners | Fort Collins | 115 |
| Physician Anesthesia Services PC | Golden | 113 |
| Platte Valley Medical Group LLC | Brighton | 110 |
| Community Medical Group LLC | Grand Jct | 109 |
| Salida Hospital District | Salida | 107 |
| Radiology Ltd LLC | Centennial | 107 |
| Delta County Memorial Hospital | Delta | 102 |
| Aurora Comprehensive Community Mental Health Center, Inc. | Aurora | 100 |
| Empowerme Rehabilitation Colorado, LLC | Denver | 98 |
| Jefferson Center for Mental Health | Lakewood | 97 |
| Alpine Medical Group Colorado PLLC | Denver | 96 |
| Onpoint Medical Group LLC | Parker | 95 |
| Diversified Radiology of Colorado Inc | Northglenn | 94 |
| Clinica Campesina Family Health Services | Lafayette | 94 |
| Select Physical Therapy of Colorado Springs LP | Colorado Springs | 93 |
| Hospitalist Medicine Physicians of Colorado - Denver PC | Denver | 92 |
| Brightside Medical PA | Denver | 91 |
| Anesthesia Partners of Colorado | Edwards | 90 |
| Hawaii Radiologic Associates Ltd | Englewood | 89 |
| Mental Health Center of Denver | Denver | 89 |
| Boulder Medical Center, PC | Boulder | 86 |
| Banner Imaging Services Colorado LLC | Loveland | 86 |
| Northern Colorado Hospitalists Professional LLC | Fort Collins | 86 |
| Gunnison Valley Hospital | Gunnison | 85 |
| Colorado Springs Orthopaedic Group | Colorado Springs | 82 |
| Emergency Physicians of the Rockies, PC | Fort Collins | 80 |
| Grand River Hospital District | Rifle | 80 |
| Healthone Clinic Services Orthopedic Specialists LLC | Denver | 79 |
| Steadman Clinic Professional LLC | Vail | 79 |
| Emergency Medical Specialists, P.C. | Colorado Springs | 77 |
| Summit Medical Consultants PLLC | Greenwood Village | 75 |
| Salud Family Health | Brighton | 75 |
| Banner Hospital Based Physicians Colorado LLC | Loveland | 75 |
| Usacs Observation Medicine Services of Colorado Inc. | Lakewood | 75 |
| Southwest Colorado Mental Health Center Inc | Cortez | 73 |
| Blue Sky Telehealth LLC | Denver | 72 |
| Eye Center of Northern Colorado PC | Lakewood | 71 |
| Hospital Medicine Services of Colorado, LLC | Denver | 71 |
| The Little Clinic of Colorado, LLC | Centennial | 68 |
| Eye Care Associates of Co LLC | Greeley | 66 |
| Pueblo Community Health Center Inc. | Pueblo | 65 |
| Advanced Dermatology of Colorado PC | Fort Collins | 65 |
| OB-GYN Affiliates | Lone Tree | 64 |
| Critical Care Pulmonary and Sleep Associates Professional LLP | Lakewood | 63 |
| Colorado Mountain Medical, LLC | Vail | 63 |
| Fort Collins Radiologic Associates PC | Fort Collins | 63 |
| Meadows Family Medical Center Inc | Denver | 62 |
| Mountain View Pain Center | Littleton | 62 |
| Mindfully LLC | Denver | 62 |
| Healthone Clinic Services - Obstetrics and Gynecology LLC | Denver | 62 |
| Colorado Imaging Associates P C | Lakewood | 62 |
| Goodness Health, LLC | Denver | 61 |
| Denver Physical Therapy, P.C. | Strasburg | 61 |
| Boulder Valley Anesthesiology, PLLC | Boulder | 61 |
| Myeyedr Optometry of Colorado PC | Thornton | 60 |
| Advanced Urology PLLC | Lone Tree | 59 |
| Usacs of Colorado Inc | Littleton | 59 |
| Primary Care Partners Inc | Grand Junction | 59 |
| Bouldercentre for Orthopedics PC | Boulder | 58 |
| Long Term Care and Rehab Consultants | Wheat Ridge | 58 |
| Poudre Valley Health Care Inc | Fort Collins | 58 |
| Animas Surgical Hospital LLC | Durango | 57 |