Luke McGuinness

Health Quest provides health care services. The company was founded in 1887 and is headquartered LaGrangeville, NY.

Central DuPage Hospital Association provided inpatient and outpatient care for adults and children, including disease diagnosis, treatment and prevention. It offered occupational health services for businesses in DuPage and Kane counties, with services such as pre-employment and executive physicals, drug screenings, health and wellness education. The company was headquartered in Winfield, IL.

Vanguard Health Systems, Inc. engages in the provision of hospital and health care services. It specializes in metropolitan hospital development, health and wellness, patient experience, and employee engagement. The company was founded by Charles N. Martin, Jr., Ronald P. Soltman, William Lawrence Hough and Joseph D. Moore on July 1, 1997 and is headquartered in Nashville, TN.

Metropolitan Chicago Healthcare Council provides health care services. It offers advocacy, clinical, finance and reimbursement, human resources, regulatory, revenue, supply chain and technology solutions. The company was founded in 1935 and is headquartered in Chicago, IL.

Part of Tenet Healthcare Corp., MacNeal Health Network is a healthcare services provider. The company is based in Berwyn, IL. MacNeal Health Network was acquired by Vanguard Health Systems, Inc., part of Tenet Healthcare Corp. from October 01, 2013 on February 04, 2000.