| Clark Fork Valley Hospital | Plains, MT | Critical Access Hospitals | Not rated |
| Claxton-Hepburn Medical Center | Ogdensburg, NY | Psychiatric | Not rated |
| Clay County Medical Corporation | West Point, MS | Acute Care Hospitals | 3 stars |
| Clearwater Valley Hospital & Clinics | Orofino, ID | Critical Access Hospitals | 2 stars |
| Cleveland Clinic | Cleveland, OH | Acute Care Hospitals | 4 stars |
| Cleveland Clinic Avon Hospital | Avon, OH | Acute Care Hospitals | 5 stars |
| Cleveland Clinic Children's Hospital for Rehab | Cleveland, OH | Childrens | Not rated |
| Cleveland Clinic Hospital | Weston, FL | Acute Care Hospitals | 5 stars |
| Cleveland Clinic Indian River Hospital | Vero Beach, FL | Acute Care Hospitals | 4 stars |
| Cleveland Clinic Martin North Hospital | Stuart, FL | Acute Care Hospitals | 3 stars |
| Clifton Springs Hospital and Clinic | Clifton Springs, NY | Acute Care Hospitals | 2 stars |
| Clinton Regional Hospital | Clinton, OK | Rural Emergency Hospital | Not rated |
| Cloud County Health Center | Concordia, KS | Critical Access Hospitals | Not rated |
| Clovis Community Medical Center | Clovis, CA | Acute Care Hospitals | 2 stars |
| Coal County General Hospital, Inc. | Coalgate, OK | Critical Access Hospitals | 4 stars |
| Cobleskill Regional Hospital | Cobleskill, NY | Critical Access Hospitals | 4 stars |
| Cobre Valley Regional Medical Center | Globe, AZ | Critical Access Hospitals | 2 stars |
| Coffeyville Regional Medical Center, Inc | Coffeyville, KS | Critical Access Hospitals | Not rated |
| Coliseum Medical Centers, LLC, DBA | Macon, GA | Acute Care Hospitals | 3 stars |
| Colorado River Medical Center | Needles, CA | Critical Access Hospitals | Not rated |
| Columbia Memorial Hospital | Hudson, NY | Acute Care Hospitals | 1 star |
| Columbus Community Hospital | Columbus, TX | Acute Care Hospitals | 2 stars |
| Columbus Community Hospital | Columbus, WI | Critical Access Hospitals | 4 stars |
| Comanche County Medical Center | Comanche, TX | Critical Access Hospitals | 3 stars |
| Commonspirit-Memorial Hospital-North Georgia | Ringgold, GA | Acute Care Hospitals | 3 stars |
| Community Hospital | Grand Junction, CO | Acute Care Hospitals | 4 stars |
| Community Hospital | Munster, IN | Acute Care Hospitals | 3 stars |
| Community Hospital | Torrington, WY | Critical Access Hospitals | 2 stars |
| Community Hospital Association | Fairfax, MO | Critical Access Hospitals | 3 stars |
| Community Hospital East | Indianapolis, IN | Acute Care Hospitals | 3 stars |
| Community Hospital Inc | Tallassee, AL | Acute Care Hospitals | Not rated |
| Community Hospital North | Indianapolis, IN | Acute Care Hospitals | 3 stars |
| Community Hospital of Anaconda | Anaconda, MT | Critical Access Hospitals | 5 stars |
| Community Hospital of Anderson and Madison County | Anderson, IN | Acute Care Hospitals | 3 stars |
| Community Hospital of Bremen Inc | Bremen, IN | Critical Access Hospitals | Not rated |
| Community Hospital of San Bernardino | San Bernardino, CA | Acute Care Hospitals | 3 stars |
| Community Hospital of Staunton | Staunton, IL | Critical Access Hospitals | Not rated |
| Community Hospital of the Monterey Peninsula | Monterey, CA | Acute Care Hospitals | 4 stars |
| Community Hospital South, Inc. | Indianapolis, IN | Acute Care Hospitals | 3 stars |
| Community Hospitals and Wellness Centers | Montpelier, OH | Critical Access Hospitals | Not rated |
| Community Howard Regional Health Inc. | Kokomo, IN | Acute Care Hospitals | 4 stars |
| Community Medical Center | Missoula, MT | Acute Care Hospitals | 3 stars |
| Community Medical Center | Toms River, NJ | Acute Care Hospitals | 1 star |
| Community Medical Center, Inc | Falls City, NE | Critical Access Hospitals | 4 stars |
| Community Memorial Healthcare, Inc. | Marysville, KS | Critical Access Hospitals | 4 stars |
| Community Memorial Hospital | Cloquet, MN | Critical Access Hospitals | Not rated |
| Community Memorial Hospital | Burke, SD | Critical Access Hospitals | Not rated |
| Community Memorial Hospital | Menomonee Falls, WI | Acute Care Hospitals | 4 stars |
| Community Memorial Hospital - Ojai | Ojai, CA | Critical Access Hospitals | Not rated |
| Community Memorial Hospital - Ventura | Ventura, CA | Acute Care Hospitals | 4 stars |