| Sequoia Hospital | Redwood City, CA | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| Sharp Chula Vista Medical Center | Chula Vista, CA | Acute Care Hospitals | Proprietary | 4 stars |
| Sharp Coronado Hospital and Hlthcr Ctr | Coronado, CA | Acute Care Hospitals | Proprietary | 4 stars |
| Sharp Memorial Hospital | San Diego, CA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Sharp Mesa Vista Hospital | San Diego, CA | Psychiatric | Voluntary non-profit - Private | Not rated |
| Shasta Regional Medical Center | Redding, CA | Acute Care Hospitals | Proprietary | 2 stars |
| Sherman Oaks Hospital | Sherman Oaks, CA | Acute Care Hospitals | Voluntary non-profit - Private | 2 stars |
| Shriners Hospitals for Children Northern Calif | Sacramento, CA | Childrens | Voluntary non-profit - Private | Not rated |
| Sierra Nevada Memorial Hospital | Grass Valley, CA | Acute Care Hospitals | Voluntary non-profit - Other | 3 stars |
| Sierra View Medical Center | Porterville, CA | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Sonoma Valley Hospital | Sonoma, CA | Acute Care Hospitals | Government - Hospital District or Authority | 2 stars |
| Southern California Hospital at Hollywood | Hollywood, CA | Acute Care Hospitals | Proprietary | 3 stars |
| Southern Inyo Hospital | Lone Pine, CA | Critical Access Hospitals | Government - Hospital District or Authority | Not rated |
| Southern Monterey County Memorial Hospital | King City, CA | Critical Access Hospitals | Voluntary non-profit - Other | Not rated |
| Southwest Healthcare Rancho Springs Hospital | Murrieta, CA | Acute Care Hospitals | Proprietary | 3 stars |
| St Bernardine Medical Center | San Bernardino, CA | Acute Care Hospitals | Voluntary non-profit - Private | 2 stars |
| St Elizabeth Community Hospital | Red Bluff, CA | Acute Care Hospitals | Voluntary non-profit - Church | 4 stars |
| St Johns Regional Medical Center | Oxnard, CA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| St Joseph's Behavioral Health Center | Stockton, CA | Psychiatric | Proprietary | Not rated |
| St Joseph's Medical Center of Stockton | Stockton, CA | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| St Mary Medical Center | Long Beach, CA | Acute Care Hospitals | Voluntary non-profit - Church | 5 stars |
| St Rose Hospital | Hayward, CA | Acute Care Hospitals | Voluntary non-profit - Church | 1 star |
| Stanford Health Care | Stanford, CA | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| Stanford Health Care Tri-Valley | Pleasanton, CA | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| Stanislaus Surgical Hospital | Modesto, CA | Acute Care Hospitals | Voluntary non-profit - Private | Not rated |
| Surprise Valley Community Hospital | Cedarville, CA | Critical Access Hospitals | Government - Hospital District or Authority | Not rated |
| Sutter Amador Hospital | Jackson, CA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Sutter Auburn Faith Hospital | Auburn, CA | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| Sutter Center for Psychiatry | Sacramento, CA | Psychiatric | Voluntary non-profit - Private | Not rated |
| Sutter Coast Hospital | Crescent City, CA | Acute Care Hospitals | Government - Hospital District or Authority | 2 stars |
| Sutter Davis Hospital | Davis, CA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Sutter Delta Medical Center | Antioch, CA | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Sutter Lakeside Hospital | Lakeport, CA | Critical Access Hospitals | Voluntary non-profit - Private | 4 stars |
| Sutter Maternity & Surgery Center of Santa Cruz | Santa Cruz, CA | Acute Care Hospitals | Voluntary non-profit - Private | Not rated |
| Sutter Medical Center, Sacramento | Sacramento, CA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Sutter Roseville Medical Center | Roseville, CA | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| Sutter Santa Rosa Regional Hospital | Santa Rosa, CA | Acute Care Hospitals | Voluntary non-profit - Other | 5 stars |
| Sutter Solano Medical Center | Vallejo, CA | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Sutter Surgical Hospital - North Valley | Yuba City, CA | Acute Care Hospitals | Physician | Not rated |
| Sutter Tracy Community Hospital | Tracy, CA | Acute Care Hospitals | Proprietary | 4 stars |
| Tahoe Forest Hospital | Truckee, CA | Critical Access Hospitals | Government - Hospital District or Authority | 3 stars |
| Tarzana Treatment Center | Tarzana, CA | Psychiatric | Voluntary non-profit - Private | Not rated |
| Telecare Heritage Psychiatric Health Facility | Oakland, CA | Psychiatric | Proprietary | Not rated |
| Temecula Valley Hospital | Temecula, CA | Acute Care Hospitals | Proprietary | 4 stars |
| Torrance Memorial Medical Center | Torrance, CA | Acute Care Hospitals | Voluntary non-profit - Other | 5 stars |
| Tri-City Medical Center | Oceanside, CA | Acute Care Hospitals | Government - Hospital District or Authority | 1 star |
| Trinity Hospital | Weaverville, CA | Critical Access Hospitals | Government - Hospital District or Authority | Not rated |
| UC San Diego Health Hillcrest - Hillcrest Med Ctr | San Diego, CA | Acute Care Hospitals | Voluntary non-profit - Other | 5 stars |
| UCI Health - Fountain Valley | Fountain Valley, CA | Acute Care Hospitals | Proprietary | 2 stars |
| UCI Health - los Alamitos | Los Alamitos, CA | Acute Care Hospitals | Proprietary | 1 star |