Whitman-Walker Health was created in 1973.
Vidant Health was created in 1997.
Cardinal Health was created in 1971.
Sanford Health was created in 1996.
Ascension Health was created in 1999.
Barwon Health was created in 1998.
Synergy Health was created in 1991.
Health Affairs was created in 1981.
Covenant Health was created in 2008.
Health-on-Line was created in 2000.
Cameron Health was created in 2000.
WellSpan Health was created in 1880.
IMS Health was created in 1954.