| Memorial Hospital of Carbondale | Carbondale, IL | Acute Care Hospitals | Voluntary non-profit - Private | 1 star |
| Memorial Medical Center | Springfield, IL | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Mercy Harvard Hospital | Harvard, IL | Critical Access Hospitals | Voluntary non-profit - Private | Not rated |
| Mercyhealth Hospital & Physician Clinic-Crystal la | Crystal Lake, IL | Acute Care Hospitals | Voluntary non-profit - Private | Not rated |
| Methodist Hospital of Chicago | Chicago, IL | Acute Care Hospitals | Voluntary non-profit - Private | Not rated |
| Midwest Medical Center | Galena, IL | Critical Access Hospitals | Voluntary non-profit - Private | Not rated |
| Midwestern Region Med Center, Inc | Zion, IL | Acute Care Hospitals | Proprietary | 4 stars |
| Montrose Behavioral Health Hospital | Chicago, IL | Psychiatric | Proprietary | Not rated |
| Morris Hospital & Healthcare Centers | Morris, IL | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Morrison Community Hospital | Morrison, IL | Critical Access Hospitals | Government - Hospital District or Authority | Not rated |
| Mt Sinai Hospital Medical Center | Chicago, IL | Acute Care Hospitals | Voluntary non-profit - Private | 1 star |
| North Chicago VA Medical Center | North Chicago, IL | Acute Care - Veterans Administration | Veterans Health Administration | 4 stars |
| Northshore University Healthsystem - Evanston Hospital | Evanston, IL | Acute Care Hospitals | Voluntary non-profit - Other | 5 stars |
| Northwest Community Hospital 1 | Arlington Heights, IL | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Northwestern Lake Forest Hospital | Lake Forest, IL | Acute Care Hospitals | Voluntary non-profit - Other | 5 stars |
| Northwestern Medicine Central Dupage Hospital | Winfield, IL | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| Northwestern Medicine Delnor Community Hospital | Geneva, IL | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| Northwestern Medicine Kishwaukee Hospital | Dekalb, IL | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| Northwestern Medicine McHenry | McHenry, IL | Acute Care Hospitals | Voluntary non-profit - Other | 5 stars |
| Northwestern Memorial Hospital | Chicago, IL | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| OSF Heart of Mary Medical Center | Urbana, IL | Acute Care Hospitals | Voluntary non-profit - Church | 3 stars |
| OSF Holy Family Medical Center | Monmouth, IL | Critical Access Hospitals | Voluntary non-profit - Church | 4 stars |
| OSF Little Company of Mary Medical Center | Evergreen Park, IL | Acute Care Hospitals | Voluntary non-profit - Other | 2 stars |
| OSF Sacred Heart Medical Center | Danville, IL | Acute Care Hospitals | Voluntary non-profit - Church | 2 stars |
| OSF Saint Anthony's Health Center | Alton, IL | Acute Care Hospitals | Voluntary non-profit - Church | 4 stars |
| OSF Saint Clare Medical Center | Princeton, IL | Critical Access Hospitals | Voluntary non-profit - Church | 2 stars |
| OSF Saint Elizabeth Mdl Ctr | Peru, IL | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| OSF Saint Katharine Medical Center | Dixon, IL | Acute Care Hospitals | Voluntary non-profit - Private | 2 stars |
| OSF Saint Luke Medical Center | Kewanee, IL | Critical Access Hospitals | Voluntary non-profit - Private | 4 stars |
| OSF Saint Paul Medical Center | Mendota, IL | Critical Access Hospitals | Voluntary non-profit - Church | 3 stars |
| Palos Community Hospital | Palos Heights, IL | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Pana Community Hospital | Pana, IL | Critical Access Hospitals | Voluntary non-profit - Private | 4 stars |
| Paris Community Hospital | Paris, IL | Critical Access Hospitals | Voluntary non-profit - Private | 3 stars |
| Pinckneyville Community Hospital | Pinckneyville, IL | Critical Access Hospitals | Government - Hospital District or Authority | Not rated |
| Presence Mercy Medical Center | Aurora, IL | Acute Care Hospitals | Voluntary non-profit - Private | 3 stars |
| Presence Saint Joseph Hospital - Chicago | Chicago, IL | Acute Care Hospitals | Voluntary non-profit - Church | 4 stars |
| Presence Saints Mary and Elizabeth Medical Center | Chicago, IL | Acute Care Hospitals | Voluntary non-profit - Church | 3 stars |
| Presence St Marys Hospital | Kankakee, IL | Acute Care Hospitals | Voluntary non-profit - Church | 4 stars |
| Provident Hospital of Chicago | Chicago, IL | Acute Care Hospitals | Government - Local | Not rated |
| Red Bud Regional Hospital | Red Bud, IL | Critical Access Hospitals | Proprietary | 4 stars |
| Riverside Medical Center | Kankakee, IL | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Rochelle Community Hospital | Rochelle, IL | Critical Access Hospitals | Voluntary non-profit - Private | Not rated |
| Roseland Community Hospital | Chicago, IL | Acute Care Hospitals | Voluntary non-profit - Private | 1 star |
| Rush Oak Park Hospital | Oak Park, IL | Acute Care Hospitals | Voluntary non-profit - Private | 4 stars |
| Rush University Medical Center | Chicago, IL | Acute Care Hospitals | Voluntary non-profit - Private | 5 stars |
| Saint Anthony Hospital | Chicago, IL | Acute Care Hospitals | Voluntary non-profit - Private | 2 stars |
| Saint Anthony Medical Center | Rockford, IL | Acute Care Hospitals | Voluntary non-profit - Church | 2 stars |
| Saint Francis Hospital-Evanston | Evanston, IL | Acute Care Hospitals | Voluntary non-profit - Church | 2 stars |
| Saint Francis Medical Center | Peoria, IL | Acute Care Hospitals | Voluntary non-profit - Private | 2 stars |
| Saint James Hospital | Pontiac, IL | Acute Care Hospitals | Voluntary non-profit - Church | 4 stars |