| Iberia Medical Center | New Iberia, LA | Acute Care Hospitals | Voluntary non-profit - Private | 2 stars |
| Idaho Falls Community Hospital, LLC | Idaho Falls, ID | Acute Care Hospitals | Proprietary | 4 stars |
| Illini Community Hospital | Pittsfield, IL | Critical Access Hospitals | Voluntary non-profit - Private | 3 stars |
| Incline Village Community Hospital | Incline Village, NV | Critical Access Hospitals | Government - Hospital District or Authority | Not rated |
| Incompass Healthcare | Lawrenceburg, IN | Psychiatric | Voluntary non-profit - Private | Not rated |
| Independence Health System Butler Memorial Hospita | Butler, PA | Acute Care Hospitals | Voluntary non-profit - Private | 2 stars |
| Independence Health System Clarion Hospital | Clarion, PA | Acute Care Hospitals | Voluntary non-profit - Private | 2 stars |
| Indian Path Community Hospital | Kingsport, TN | Acute Care Hospitals | Voluntary non-profit - Private | Not rated |
| Indiana Regional Medical Center | Indiana, PA | Acute Care Hospitals | Voluntary non-profit - Private | 2 stars |
| Indiana University Health | Indianapolis, IN | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Indiana University Health Arnett Hospital | Lafayette, IN | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Indiana University Health Ball Memorial Hospital | Muncie, IN | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Indiana University Health Bedford Hospital | Bedford, IN | Critical Access Hospitals | Voluntary non-profit - Private | 3 stars |
| Indiana University Health Bloomington Hospital | Bloomington, IN | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Indiana University Health Frankfort Inc | Frankfort, IN | Critical Access Hospitals | Voluntary non-profit - Private | Not rated |
| Indiana University Health Jay, Inc. | Portland, IN | Critical Access Hospitals | Government - Local | 5 stars |
| Indiana University Health North Hospital | Carmel, IN | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Indiana University Health Paoli Hospital | Paoli, IN | Critical Access Hospitals | Voluntary non-profit - Private | Not rated |
| Indiana University Health Tipton Hospital Inc | Tipton, IN | Critical Access Hospitals | Voluntary non-profit - Other | 3 stars |
| Indiana University Health White Memorial Hospital | Monticello, IN | Critical Access Hospitals | Voluntary non-profit - Private | 5 stars |
| Indianapolis VA Medical Center | Indianapolis, IN | Acute Care - Veterans Administration | Veterans Health Administration | 3 stars |
| Indianhead Medical Ctr | Shell Lake, WI | Critical Access Hospitals | Proprietary | Not rated |
| Ingalls Memorial Hospital | Harvey, IL | Acute Care Hospitals | Physician | 2 stars |
| Inland Northwest Behavioral Health | Spokane, WA | Psychiatric | Proprietary | Not rated |
| Inova Alexandria Hospital | Alexandria, VA | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| Inova Fair Oaks Hospital | Fairfax, VA | Acute Care Hospitals | Voluntary non-profit - Other | 5 stars |
| Inova Fairfax Hospital | Falls Church, VA | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| Inova Loudoun Hospital | Leesburg, VA | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| Inova Mount Vernon Hospital | Alexandria, VA | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Insight Hospital and Medical Center Chicago | Chicago, IL | Acute Care Hospitals | Voluntary non-profit - Private | 1 star |
| Insight Hospital and Medical Center Coldwater | Coldwater, MI | Acute Care Hospitals | Government - Local | 2 stars |
| Insight Hospital and Medical Center Trumbull | Warren, OH | Acute Care Hospitals | Proprietary | 2 stars |
| Inspira Medical Center Mullica Hill | Elmer, NJ | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Inspira Medical Center Vineland | Vineland, NJ | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Institute for Orthopaedic Surgery | Lima, OH | Acute Care Hospitals | Proprietary | Not rated |
| Integris Baptist Medical Center, Inc | Oklahoma City, OK | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Integris Canadian Valley Hospital | Yukon, OK | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Integris Community Hospital - Council Crossing | Oklahoma City, OK | Acute Care Hospitals | Proprietary | Not rated |
| Integris Grove Hospital | Grove, OK | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Integris Health Edmond Hospital | Edmond, OK | Acute Care Hospitals | Voluntary non-profit - Private | 2 stars |
| Integris Health Enid Hospital | Enid, OK | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Integris Health Ponca City | Ponca City, OK | Acute Care Hospitals | Voluntary non-profit - Other | 2 stars |
| Integris Health Woodward Hospital | Woodward, OK | Acute Care Hospitals | Proprietary | 3 stars |
| Integris Miami Hospital | Miami, OK | Acute Care Hospitals | Voluntary non-profit - Other | 4 stars |
| Integris Southwest Medical Center | Oklahoma City, OK | Acute Care Hospitals | Voluntary non-profit - Private | 2 stars |
| Intensive Specialty Hospital | Shreveport, LA | Long-term | Voluntary non-profit - Private | Not rated |
| Intermountain Health Alta View Hospital | Sandy, UT | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| Intermountain Health Cedar City Hospital | Cedar City, UT | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Intermountain Health Delta Community Hospital | Delta, UT | Critical Access Hospitals | Voluntary non-profit - Private | Not rated |
| Intermountain Health Fillmore Community Hospital | Fillmore, UT | Critical Access Hospitals | Voluntary non-profit - Private | Not rated |
| Intermountain Health Garfield Memorial Hospital | Panguitch, UT | Critical Access Hospitals | Voluntary non-profit - Other | Not rated |
| Intermountain Health Heber Valley Hospital | Heber City, UT | Critical Access Hospitals | Voluntary non-profit - Private | Not rated |
| Intermountain Health Layton Hospital | Layton, UT | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| Intermountain Health Logan Regional Hospital | Logan, UT | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| Intermountain Health Lutheran Hospital | Wheat Ridge, CO | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Intermountain Health McKay-Dee Hospital | Ogden, UT | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| Intermountain Health Platte Valley Hospital | Brighton, CO | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Intermountain Health Riverton Hospital | Riverton, UT | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| Intermountain Health Sanpete Valley Hospital | Mount Pleasant, UT | Critical Access Hospitals | Voluntary non-profit - Private | Not rated |
| Intermountain Health Sevier Valley Hospital | Richfield, UT | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Intermountain Health Spanish Fork Hospital | Spanish Fork, UT | Acute Care Hospitals | Voluntary non-profit - Private | Not rated |
| Intermountain Health St Vincent Regional Hospital | Billings, MT | Acute Care Hospitals | Voluntary non-profit - Church | 4 stars |
| Intermountain Health St. Mary's Regional Hospital | Grand Junction, CO | Acute Care Hospitals | Voluntary non-profit - Church | 4 stars |
| Intermountain Health Utah Valley Hospital | Provo, UT | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| Intermountain Hospital | Boise, ID | Psychiatric | Proprietary | Not rated |
| Intermountain Medical Center | Murray, UT | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| Iowa City VA Medical Center | Iowa City, IA | Acute Care - Veterans Administration | Veterans Health Administration | 5 stars |
| Iowa Specialty Hospital - Belmond | Belmond, IA | Critical Access Hospitals | Government - Local | Not rated |
| Iowa Specialty Hospital - Clarion | Clarion, IA | Critical Access Hospitals | Government - Local | Not rated |
| Ira Davenport Memorial Hospital | Bath, NY | Rural Emergency Hospital | Voluntary non-profit - Private | Not rated |
| Iraan General Hospital | Iraan, TX | Critical Access Hospitals | Government - Hospital District or Authority | Not rated |
| Iredell Davis Behavioral Health Hospital | Statesville, NC | Psychiatric | Proprietary | Not rated |
| Iredell Memorial Hospital Inc | Statesville, NC | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Iron County Medical Center | Pilot Knob, MO | Critical Access Hospitals | Government - Hospital District or Authority | Not rated |
| Iron Mountain Mi VA Medical Center | Iron Mountain, MI | Acute Care - Veterans Administration | Veterans Health Administration | Not rated |
| Iroquois Memorial Hospital | Watseka, IL | Critical Access Hospitals | Voluntary non-profit - Private | Not rated |
| Irwin ACH (FT Riley) | Fort Riley, KS | Acute Care - Department of Defense | Department of Defense | Not rated |
| Irwin County Hospital | Ocilla, GA | Rural Emergency Hospital | Government - Hospital District or Authority | Not rated |
| Island Hospital | Anacortes, WA | Acute Care Hospitals | Government - Hospital District or Authority | 4 stars |
| Iu Health West Hospital | Avon, IN | Acute Care Hospitals | Proprietary | 4 stars |
| Ivinson Memorial Hospital | Laramie, WY | Acute Care Hospitals | Government - Hospital District or Authority | 3 stars |
| Izard Regional Hospital LLC | Calico Rock, AR | Critical Access Hospitals | Voluntary non-profit - Private | Not rated |