| Advocate Health Care: Consists of hospitals, healthcare facilities and clinics, graduate medical education and allied health programs and health and fitness resources. Based in Chicago, Illinois. |
| Bethany Methodist Corporation: Mission is to provide comprehensive, effective healthcare services while caring for each and every patient and resident. Chicago, Illinois. |
| Catholic Health Partners: The network consists of three community hospitals, The Chicago Institute of Neurosurgery and Neuroresearch, 25 Medical Network satellites, a full-service home health agency and Diamond Headache Clinic. (Chicago, Illinois) |
| Central DuPage Health: A system of labs, health and wellness complexes and healthcare centers and the Central DuPage Hospital in several locations in Illinois. Based in Winfield. |
| Edward Health Services Corporation: Based in Naperville, Illinois. Information on locations, services, provides a virtual tour of facilities and extensive health related information. |
| Elmhurst Memorial Healthcare: A comprehensive health system based in Elmhurst, Illinois. Founded in 1926, providing cardiac, cancer, maternity, pediatric and emergency care. |
| Ingalls Health System: Health care system based in Cook County. Includes locations of facilities, physician search, news releases, senior life information and links on health topics. (Illinois) |
| Loyola University Health System: A system of hospitals and medical facilities providing specialty and primary health care services. (Illinois) |
| MacNeal Health Network: A healthcare network comprised of MacNeal Hospital, more than 30 Healthcare Centers, Home Health Services, adult and pediatric rehabilitation services and a complete range of specialties. (Berwyn, Illinois) |
| Mercy Health System: A health care network of more than 30 facilities in 14 communities, across five counties in southern Wisconsin and northern Illinois. |
| Methodist Medical Group: Healthcare network in the Central Illinois and Peoria area. Offers primary care, urgent care, and specialty physicians and healthcare providers. Online appointments, location information, and find a physician services. |
| Resurrection Health Care: Catholic health care system in Chicago includes eight hospitals: Holy Family Medical Center; Our Lady of the Resurrection Medical Center; Resurrection Medical Center; Saint Elizabeth Hospital; Saint Francis Hospital/Evanston; Saint Joseph Hospital; Saint Mary of Nazareth Hospital Center; Westlake Hospital; ten nursing homes, four retirement communities, a large home health company and dozens of outpatient services and facilities. |
| Rockford Health System: The system combines the resources of Rockford Memorial Hospital, Rockford Clinic and the Visiting Nurses Association. Based in Rockford. |
| Southern Illinois Healthcare: A system of six hospitals and healthcare clinics and facilities providing care to people in rural Illinois down-state communities. System office located in Carbondale, IL. |
| SwedishAmerican Health System: Information including Doctors, Clinics, services, employment opportunities, contact information and important news. (Rockford, Illinois) |
| University of Chicago Hospitals: Provides details of medical and surgical services, as well as physician profiles, information on clinical trials, and a health library. |
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