- Community Memorial Hospital - Ojai
- Community Memorial Hospital - Ventura
- Community Regional Medical Center
- Community Rehabilitation Hospital North
- Community Rehabilitation Hospital South
- Community Rehabilitation Hospital West
- Community Stroke and Rehabilitation Hospital
- Community Surgery Center East
- Community Surgery Center Hamilton
- Community Surgery Center Howard
- Community Surgery Center North
- Community Surgery Center Plus
- Community Surgery Center South
- Compass Behavioral Center of Alexandria
- Compass Behavioral Center of Crowley
- Compass Behavioral Center of Houma
- Compass Behavioral Center of Lafayette
- Compass Intervention Center
- Compass Memorial Healthcare
- Comprehensive Cancer Center of UPR
- Concho County Hospital
- Concord Hospital
- Concord Hospital - Franklin
- Concord Hospital - Laconia
- Cone Health Alamance Regional Medical Center
- Cone Health Annie Penn Hospital
- Cone Health Behavioral Health Hospital
- Cone Health Moses Cone Hospital
- Cone Health Wesley Long Hospital
- Cone Health Womens & Childrens Center at Moses Cone Hospital