- Sabetha Community Hospital
- Sabine County Hospital
- Sabine Medical Center
- Sacramento Behavioral Healthcare Hospital
- Sacramento Medical Center
- Sacramento Rehabilitation Hospital
- Saddleback Medical Center
- Sagamore Childrens Psychiatric Center
- Sage Memorial Hospital
- Sage Rehabilitation Hospital
- Sage Specialty and Rehabilitation Center of Lafayette
- Sage Specialty Hospital - Baton Rouge
- Sage Specialty Hospital - Denham Springs
- SageWest - Lander
- SageWest - Riverton
- Saint Agnes Medical Center
- Saint Alphonsus Medical Center - Baker City
- Saint Alphonsus Medical Center - Nampa
- Saint Alphonsus Medical Center - Ontario
- Saint Alphonsus Regional Medical Center
- Saint Alphonsus Regional Rehabilitation Hospital
- Saint Annes Hospital
- Saint Anthony Hospital
- Saint Clares Behavioral Health - Boonton
- Saint Clares Denville Hospital
- Saint Clares Dover Hospital
- Saint Francis Childrens Hospital
- Saint Francis Hospital
- Saint Francis Hospital
- Saint Francis Hospital