- Central Texas Rehabilitation Hospital
- Central Valley Medical Center - CAH
- Central Valley Specialty Hospital
- Central Vermont Medical Center
- Centra Lynchburg General Hospital
- Centra Southside Community Hospital
- Centra Specialty Hospital
- CentraState Medical Center
- Centra Virginia Baptist Hospital
- Centro Cardiovascular of Puerto Rico and the Caribbean
- Centro Salud Conductual Menonita
- Centura - St Francis Hospital - Interquest
- CGH Medical Center
- CHA Cambridge Hospital
- Chadron Community Hospital and Health Services
- CHA Everett Hospital
- CHA Hollywood Presbyterian Medical Center
- Champlain Valley Physicians Hospital
- Chandler Regional Medical Center
- ChangePoint Psychiatric Hospital
- Chan Soon-Shiong Medical Center at Windber
- Chapman Global Medical Center
- Charles A Cannon Jr Memorial Hospital
- Charlotte Hungerford Hospital
- Charlton Memorial Hospital
- Chase County Community Hospital
- Chatham Hospital
- Chatuge Regional Hospital
- Chelsea Hospital
- Cherokee Medical Center