- Knox County Hospital
- Knoxville Center for Behavioral Medicine
- Knoxville Hospital & Clinics
- Knoxville Rehabilitation Hospital
- Kohala Hospital
- Kona Community Hospital
- Kootenai Health
- Kossuth Regional Health Center
- KPC Promise Hospital of Baton Rouge
- KPC Promise Hospital of Phoenix
- KPC Promise Hospitals of Dallas
- Kuakini Medical Center
- Kula Hospital
- Kyle ER & Hospital
- Labette Health
- La Casa Psychiatric Health Facility
- Lackey Memorial Hospital
- LA Downtown Medical Center - Downtown Campus
- LA Downtown Medical Center - Ingleside Campus
- Lady of the Sea General Hospital
- Lafayette Physical Rehabilitation Hospital
- Lafayette Regional Health Center
- Lafayette Regional Rehabilitation Hospital
- Lafayette Surgical Specialty Hospital
- LaFollette Medical Center
- Laguna Honda Hospital and Rehabilitation Center
- Laguna Treatment Hospital
- Lahey Hospital & Medical Center - Burlington
- Lahey Medical Center - Peabody
- Lake Behavioral Hospital