- Sequoia Hospital
- Serenity Springs Specialty Hospital
- Seton Medical Center Harker Heights
- Seven Counties Services
- Seven Hills Behavioral Health Hospital
- Sevier County Medical Center
- Sevier Valley Hospital
- Seymour Hospital
- SGMC Smith Northview Hospital
- Shamrock General Hospital
- Shannon Medical Center
- Shannon Rehabilitation Hospital
- Shannon South
- Shannon Womens & Childrens Hospital
- Share Medical Center
- Sharkey Issaquena Community Hospital
- Sharon Hospital
- Sharon Regional Medical Center
- Sharp Chula Vista Medical Center
- Sharp Coronado Hospital
- Sharp Grossmont Hospital
- Sharp Mary Birch Hospital for Women & Newborns
- Sharp McDonald Center
- Sharp Memorial Hospital
- Sharp Mesa Vista Hospital
- Shasta Regional Medical Center
- Shelby Baptist Medical Center
- Sheltering Arms Institute
- Shenandoah Medical Center
- Shenandoah Memorial Hospital