- Kadlec Regional Medical Center
- Kahuku Medical Center
- Kaiser Foundation Hospital - San Diego Zion Medical Center
- Kaiser Permanente Central Hospital
- Kaiser Permanente Manteca Medical Offices
- Kalamazoo Psychiatric Hospital
- Kalkaska Memorial Health Center
- Kanakanak Hospital
- Kane County Hospital
- Kansas City Orthopaedic Institute
- Kansas Heart Hospital
- Kansas Medical Center
- Kansas Neurological Institute
- Kansas Rehabilitation Hospital
- Kansas Spine & Specialty Hospital
- Kansas Surgery & Recovery Center
- Kapiolani Medical Center For Women & Children
- Karmanos Cancer Institute
- Kate Dishman Rehab Hospital
- Katherine Shaw Bethea
- Kauai Veterans Memorial Hospital
- Kau Hospital
- Kaweah Delta
- Kearney County Health Services
- Kearney Regional Medical Center
- Kearny County Hospital
- Keck Medicine of USC - Keck Hospital of USC
- Kedren Community Mental Health
- Keefe Memorial Health Service District
- Keefe Memorial Hospital