| Kadlec Regional Medical Center | Richland, WA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Kahuku Medical Center | Kahuku, HI | Critical Access Hospitals | Voluntary non-profit - Other | Not rated |
| Kaiser Foundation Hosp So Sacramento | Sacramento, CA | Acute Care Hospitals | Voluntary non-profit - Private | 2 stars |
| Kaiser Foundation Hospital | San Rafael, CA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Kaiser Foundation Hospital | Honolulu, HI | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Kaiser Foundation Hospital - Antioch | Antioch, CA | Acute Care Hospitals | Voluntary non-profit - Private | 1 star |
| Kaiser Foundation Hospital - Baldwin Park | Baldwin Park, CA | Acute Care Hospitals | Voluntary non-profit - Other | 3 stars |
| Kaiser Foundation Hospital - Downey | Downey, CA | Acute Care Hospitals | Voluntary non-profit - Other | 4 stars |
| Kaiser Foundation Hospital - Fremont | Fremont, CA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Kaiser Foundation Hospital - Fresno | Fresno, CA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Kaiser Foundation Hospital - los Angeles | Los Angeles, CA | Acute Care Hospitals | Voluntary non-profit - Other | 5 stars |
| Kaiser Foundation Hospital - Oakland/Richmond | Oakland, CA | Acute Care Hospitals | Voluntary non-profit - Private | 2 stars |
| Kaiser Foundation Hospital - Orange County - Anaheim | Anaheim, CA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Kaiser Foundation Hospital - Panorama City | Panorama City, CA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Kaiser Foundation Hospital - Redwood City | Redwood City, CA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Kaiser Foundation Hospital - Roseville | Roseville, CA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Kaiser Foundation Hospital - Sacramento | Sacramento, CA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Kaiser Foundation Hospital - San Diego | San Diego, CA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Kaiser Foundation Hospital - San Francisco | San Francisco, CA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Kaiser Foundation Hospital - San Leandro | San Leandro, CA | Acute Care Hospitals | Voluntary non-profit - Private | 2 stars |
| Kaiser Foundation Hospital - San Marcos | San Marcos, CA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Kaiser Foundation Hospital - South Bay | Harbor City, CA | Acute Care Hospitals | Voluntary non-profit - Other | 3 stars |
| Kaiser Foundation Hospital - South San Francisco | South San Francisco, CA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Kaiser Foundation Hospital - Vacaville | Vacaville, CA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Kaiser Foundation Hospital - Walnut Creek | Walnut Creek, CA | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Kaiser Foundation Hospital - West la | Los Angeles, CA | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Kaiser Foundation Hospital - Woodland Hills | Woodland Hills, CA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Kaiser Foundation Hospital and Rehab Center | Vallejo, CA | Acute Care Hospitals | Voluntary non-profit - Private | 2 stars |
| Kaiser Foundation Hospital Fontana/Ontario | Fontana, CA | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Kaiser Foundation Hospital Manteca | Manteca, CA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Kaiser Foundation Hospital Westside | Hillsboro, OR | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Kaiser Foundation Hospital, Riverside | Riverside, CA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Kaiser Foundation Hospital-Moreno Valley | Moreno Valley, CA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Kaiser Foundation Hospital-San Jose | San Jose, CA | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Kaiser Foundation Hospital-Santa Clara | Santa Clara, CA | Acute Care Hospitals | Voluntary non-profit - Private | 2 stars |
| Kaiser Foundation Hospital-Santa Rosa | Santa Rosa, CA | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Kaiser Permanente Central Hospital | Seattle, WA | Acute Care Hospitals | Voluntary non-profit - Other | Not rated |
| Kaiser Permanente Psychiatric Health Facility-Sant | Santa Clara, CA | Psychiatric | Proprietary | Not rated |
| Kaiser Sunnyside Medical Center | Clackamas, OR | Acute Care Hospitals | Voluntary non-profit - Other | 4 stars |
| Kalamazoo Behavioral Health Hospital | Kalamazoo, MI | Psychiatric | Proprietary | Not rated |
| Kalamazoo Regional Psychiatric Hospital | Kalamazoo, MI | Psychiatric | Government - State | Not rated |
| Kaleida Health | Buffalo, NY | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Kalkaska Memorial Health Center | Kalkaska, MI | Critical Access Hospitals | Government - Hospital District or Authority | Not rated |
| Kane County Hospital | Kanab, UT | Critical Access Hospitals | Government - Hospital District or Authority | Not rated |
| Kansas City Orthopaedic Institute | Leawood, KS | Acute Care Hospitals | Physician | Not rated |
| Kansas City VA Medical Center | Kansas City, MO | Acute Care - Veterans Administration | Veterans Health Administration | 4 stars |
| Kansas Heart Hospital | Wichita, KS | Acute Care Hospitals | Proprietary | 4 stars |
| Kansas Medical Center LLC | Andover, KS | Acute Care Hospitals | Proprietary | 2 stars |
| Kansas Spine & Specialty Hospital, LLC | Wichita, KS | Acute Care Hospitals | Physician | Not rated |
| Kansas Surgery & Recovery Center | Wichita, KS | Acute Care Hospitals | Voluntary non-profit - Private | Not rated |
| Kapiolani Medical Center for Women & Children | Honolulu, HI | Childrens | Voluntary non-profit - Private | Not rated |
| Karmanos Cancer Center | Detroit, MI | Acute Care Hospitals | Proprietary | 3 stars |
| Kau Hospital | Pahala, HI | Critical Access Hospitals | Government - State | Not rated |
| Kauai Veterans Memorial Hospital | Waimea, HI | Critical Access Hospitals | Government - State | Not rated |
| Kaweah Health Medical Center | Visalia, CA | Acute Care Hospitals | Government - Hospital District or Authority | 3 stars |
| Kayenta Alternative Rural Hospital | Kayenta, AZ | Acute Care Hospitals | Government - Federal | Not rated |
| Kearney County Health Services Hospital | Minden, NE | Critical Access Hospitals | Government - Local | Not rated |
| Kearney Regional Medical Center | Kearney, NE | Acute Care Hospitals | Proprietary | 4 stars |
| Kearny County Hospital | Lakin, KS | Critical Access Hospitals | Government - Local | Not rated |
| Keck Hospital of USC | Los Angeles, CA | Acute Care Hospitals | Voluntary non-profit - Other | 5 stars |
| Keefe Memorial Hospital | Cheyenne Wells, CO | Critical Access Hospitals | Government - Hospital District or Authority | Not rated |
| Keller ACH (West Point) | West Point, NY | Acute Care - Department of Defense | Department of Defense | Not rated |
| Kenmore Mercy Hospital | Kenmore, NY | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Kennedy Krieger Institute | Baltimore, MD | Childrens | Voluntary non-profit - Private | Not rated |
| Kensington Hospital | Philadelphia, PA | Acute Care Hospitals | Voluntary non-profit - Other | Not rated |
| Kent County Memorial Hospital | Warwick, RI | Acute Care Hospitals | Proprietary | 3 stars |
| Kentucky River Medical Center | Jackson, KY | Critical Access Hospitals | Proprietary | Not rated |
| Keokuk County Health Center | Sigourney, IA | Critical Access Hospitals | Government - Hospital District or Authority | Not rated |
| Keralty Hospital | Miami, FL | Acute Care Hospitals | Proprietary | 2 stars |
| Kern Medical Center | Bakersfield, CA | Acute Care Hospitals | Government - Hospital District or Authority | 1 star |
| Kern Valley Healthcare District | Lake Isabella, CA | Critical Access Hospitals | Government - Hospital District or Authority | 3 stars |
| Kershawhealth | Camden, SC | Acute Care Hospitals | Proprietary | 3 stars |
| Kettering Health Dayton | Dayton, OH | Acute Care Hospitals | Voluntary non-profit - Other | 4 stars |
| Kettering Health Greene Memorial | Xenia, OH | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| Kettering Health Main Campus | Kettering, OH | Acute Care Hospitals | Voluntary non-profit - Church | 3 stars |
| Kettering Health Miamisburg | Miamisburg, OH | Acute Care Hospitals | Voluntary non-profit - Church | 4 stars |
| Kettering Health Troy | Troy, OH | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| Kimball Health Services | Kimball, NE | Critical Access Hospitals | Government - Local | Not rated |
| Kimble Hospital | Junction, TX | Critical Access Hospitals | Proprietary | Not rated |
| King's Daughters Medical Center-Brookhaven | Brookhaven, MS | Acute Care Hospitals | Voluntary non-profit - Other | 3 stars |
| King's Daughters' Medical Center | Ashland, KY | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Kingman Healthcare Center | Kingman, KS | Critical Access Hospitals | Voluntary non-profit - Private | Not rated |
| Kingman Regional Medical Center | Kingman, AZ | Acute Care Hospitals | Government - Hospital District or Authority | 3 stars |
| Kings County Hospital Center | Brooklyn, NY | Acute Care Hospitals | Government - Local | 1 star |
| Kings Daughters Medical Center Ohio | Portsmouth, OH | Acute Care Hospitals | Voluntary non-profit - Private | Not rated |
| Kingsboro Psychiatric Hospital | Brooklyn, NY | Psychiatric | Government - State | Not rated |
| Kingwood Pines Hospital | Kingwood, TX | Psychiatric | Proprietary | Not rated |
| Kiowa County Memorial Hospital | Greensburg, KS | Critical Access Hospitals | Government - Local | Not rated |
| Kiowa District Hospital | Kiowa, KS | Critical Access Hospitals | Government - Hospital District or Authority | Not rated |
| Kirby Forensic Psychiatric Center | New York, NY | Psychiatric | Government - State | Not rated |
| Kirby Medical Center | Monticello, IL | Critical Access Hospitals | Voluntary non-profit - Private | Not rated |
| Kit Carson County Memorial Hospital | Burlington, CO | Critical Access Hospitals | Government - Hospital District or Authority | Not rated |
| Kittitas Valley Community Hospital | Ellensburg, WA | Critical Access Hospitals | Government - Hospital District or Authority | Not rated |
| Kittson Healthcare | Hallock, MN | Critical Access Hospitals | Voluntary non-profit - Private | Not rated |
| Klickitat Valley Hospital | Goldendale, WA | Critical Access Hospitals | Government - Hospital District or Authority | Not rated |
| Knapp Medical Center | Weslaco, TX | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| Knox Community Hospital | Mount Vernon, OH | Acute Care Hospitals | Voluntary non-profit - Other | 3 stars |
| Knox County Hospital | Barbourville, KY | Critical Access Hospitals | Government - Local | Not rated |
| Knox County Hospital | Knox City, TX | Critical Access Hospitals | Government - Local | Not rated |
| Knoxville Center for Behavioral Medicine | Knoxville, TN | Psychiatric | Voluntary non-profit - Other | Not rated |
| Knoxville Hospital & Clinics | Knoxville, IA | Critical Access Hospitals | Voluntary non-profit - Private | 2 stars |
| Kohala Hospital | Kapaau, HI | Critical Access Hospitals | Government - State | Not rated |
| Kona Community Hospital | Kealakekua, HI | Acute Care Hospitals | Government - State | 2 stars |
| Kootenai Health | Coeur D'Alene, ID | Acute Care Hospitals | Government - Hospital District or Authority | 4 stars |
| Kosciusko Community Hospital | Warsaw, IN | Acute Care Hospitals | Proprietary | 4 stars |
| Kossuth Regional Health Center | Algona, IA | Critical Access Hospitals | Government - Local | 1 star |
| Kuakini Medical Center | Honolulu, HI | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Kula Hospital | Kula, HI | Critical Access Hospitals | Voluntary non-profit - Private | Not rated |