Wheaton Franciscan Services, Inc. (WFSI) is the not-for-profit parent company for more than 100 health care, housing, and social service organizations in Colorado, Illinois, Iowa, and Wisconsin. Also known as Wheaton Franciscan Healthcare, WFSI operates about 15 hospitals including Affinity Health System, Rush Oak Park Hospital, and United Hospital System, with more than 1,600 beds total. WFSI also includes long-term care centers, home health agencies, and physician offices. Its Franciscan Ministries division provides affordable housing units including assisted-living facilities and low-income dwellings. The health system is sponsored by The Franciscan Sisters, Daughters of the Sacred Hearts of Jesus and Mary.