- Kadlec Regional Medical Center
- Kahuku Medical Center
- Kaiser Permanente Central Hospital Capitol Hill Campus
- Kaiser Permanente Moanalua Medical Center
- Kaiser Permanente San Diego Medical Center
- Kaiser Permanente San Marcos Medical Center
- Kaiser Permanente Westside Medical Center
- Kaiser Permanente Zion Medical Center
- Kaiser Sunnyside Medical Center
- Kalamazoo Behavioral Health Hospital
- Kalamazoo Psychiatric Hospital
- Kalkaska Memorial Health Center
- 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 Center
- Kate Dishman Rehabilitation Hospital
- Kauai Veterans Memorial Hospital
- Kau Hospital
- Kaweah Health Medical Center
- Kaweah Health Mental Health Hospital
- Kearney County Health Services Hospital
- Kearney Regional Medical Center
- Kearny County Hospital