- San Leandro Hospital
- San Leandro Medical Center
- San Mateo Medical Center
- Sanpete Valley Hospital
- San Rafael Medical Center
- San Ramon Regional Medical Center
- Santa Barbara Cottage Hospital
- Santa Barbara County Psychiatric Health Facility
- Santa Clara Medical Center
- Santa Clara Valley Medical Center
- Santa Cruz County Psychiatric Health Facility
- Santa Paula Hospital
- Santa Rosa Behavioral Healthcare Hospital
- Santa Rosa Medical Center
- Santa Rosa Medical Center
- Santa Ynez Valley Cottage Hospital
- Santiam Memorial Hospital
- Sarah Bush Lincoln Fayette County Hospital
- Sarah Bush Lincoln Health Center
- Sarah D Culbertson Memorial Hospital
- Sarasota Memorial Hospital
- Sarasota Memorial Hospital - Venice
- Saratoga Hospital
- Satanta District Hospital
- Sauk Prairie Memorial Hospital
- Saunders Medical Center
- Savoy Medical Center
- Scenic Mountain Medical Center
- Scheurer Hospital
- Schleicher County Medical Center