| Abraham Lincoln Memorial Hospital | Lincoln, IL | Critical Access Hospitals | Voluntary non-profit - Private | 4 stars |
| Advocate Christ Hospital & Medical Center | Oak Lawn, IL | Acute Care Hospitals | Voluntary non-profit - Church | 3 stars |
| Advocate Condell Medical Center | Libertyville, IL | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Advocate Good Samaritan Hospital | Downers Grove, IL | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Advocate Good Shepherd Hospital | Barrington, IL | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| Advocate Illinois Masonic Medical Center | Chicago, IL | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Advocate Lutheran General Hospital | Park Ridge, IL | Acute Care Hospitals | Voluntary non-profit - Church | 4 stars |
| Advocate Sherman Hospital | Elgin, IL | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Advocate Trinity Hospital | Chicago, IL | Acute Care Hospitals | Voluntary non-profit - Church | 2 stars |
| Aeries Healthcare of Illinois, Inc., DBA Riveredge Hospital | Forest Park, IL | Psychiatric | Proprietary | Not rated |
| Alexian Brothers Behavioral Hlth Hosp | Hoffman Estates, IL | Psychiatric | Voluntary non-profit - Church | Not rated |
| Alexian Brothers Medical Center 1 | Elk Grove Village, IL | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Alton Memorial Hospital | Alton, IL | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Alton Mental Health Center | Alton, IL | Psychiatric | Government - State | Not rated |
| Amita Health Resurrection Medical Center | Chicago, IL | Acute Care Hospitals | Voluntary non-profit - Church | 3 stars |
| Anderson Hospital | Maryville, IL | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Andrew McFarland Mental Hlth Ctr | Springfield, IL | Psychiatric | Government - State | Not rated |
| Ann & Robert H Lurie Childrens Hospital of Chicago | Chicago, IL | Childrens | Voluntary non-profit - Private | Not rated |
| BHC Streamwood Hospital Inc | Streamwood, IL | Psychiatric | Proprietary | Not rated |
| Blessing Hospital | Quincy, IL | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Carle Bromenn Medical Center | Normal, IL | Acute Care Hospitals | Voluntary non-profit - Church | 3 stars |
| Carle Eureka Hospital | Eureka, IL | Critical Access Hospitals | Voluntary non-profit - Private | Not rated |
| Carle Foundation Hospital | Urbana, IL | Acute Care Hospitals | Voluntary non-profit - Private | 2 stars |
| Carle Health Methodist Hospital | Peoria, IL | Acute Care Hospitals | Voluntary non-profit - Private | 2 stars |
| Carle Health Pekin Hospital | Pekin, IL | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Carle Health Proctor Hospital | Peoria, IL | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Carle Hoopeston Regional Health Center | Hoopeston, IL | Critical Access Hospitals | Voluntary non-profit - Private | Not rated |
| Carle Richland Memorial Hospital | Olney, IL | Critical Access Hospitals | Voluntary non-profit - Private | 2 stars |
| Carlinville Area Hospital | Carlinville, IL | Critical Access Hospitals | Voluntary non-profit - Private | 2 stars |
| Cgh Medical Center | Sterling, IL | Acute Care Hospitals | Government - Local | 1 star |
| Chicago Behavioral Hospital | Des Plaines, IL | Psychiatric | Proprietary | Not rated |
| Chicago Read Mental Health Center | Chicago, IL | Psychiatric | Government - State | Not rated |
| Choate Mental Health & Development Ctr | Anna, IL | Psychiatric | Government - State | Not rated |
| Clay County Hospital | Flora, IL | Critical Access Hospitals | Government - Local | 3 stars |
| Community First Medical Center | Chicago, IL | Acute Care Hospitals | Proprietary | 2 stars |
| Community Hospital of Staunton | Staunton, IL | Critical Access Hospitals | Voluntary non-profit - Private | Not rated |
| Copley Memorial Hospital | Aurora, IL | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Crawford Memorial Hospital | Robinson, IL | Critical Access Hospitals | Government - Hospital District or Authority | 4 stars |
| Deaconess Illinois Crossroads | Mount Vernon, IL | Acute Care Hospitals | Proprietary | Not rated |
| Deaconess Illinois Union County | Anna, IL | Critical Access Hospitals | Proprietary | Not rated |
| Decatur Memorial Hospital | Decatur, IL | Acute Care Hospitals | Voluntary non-profit - Other | 3 stars |
| Edward Hospital | Naperville, IL | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Elgin Mental Health Center | Elgin, IL | Psychiatric | Government - State | Not rated |
| Elmhurst Memorial Hospital | Elmhurst, IL | Acute Care Hospitals | Proprietary | 3 stars |
| Fairfield Memorial Hospital 1 | Fairfield, IL | Critical Access Hospitals | Voluntary non-profit - Private | 3 stars |
| Fayette County Hospital | Vandalia, IL | Critical Access Hospitals | Voluntary non-profit - Other | Not rated |
| Ferrell Hospital Community Foundations | Eldorado, IL | Critical Access Hospitals | Voluntary non-profit - Private | 1 star |
| Fhn Memorial Hospital | Freeport, IL | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Franciscan Health Olympia & Chicago Heights | Olympia Fields, IL | Acute Care Hospitals | Voluntary non-profit - Church | 3 stars |
| Franklin Hospital | Benton, IL | Critical Access Hospitals | Government - Hospital District or Authority | Not rated |