- 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
- Schneck Medical Center
- Schneider Regional Medical Center
- Schoolcraft Memorial Hospital
- Schuyler Hospital
- Schwab Rehabilitation Hospital
- Scotland County Hospital
- Scotland Memorial Hospital
- Scott County Hospital
- Scripps Green Hospital
- Scripps Memorial Hospital Encinitas