Ascension Health was created on November 1, 1999 with the union of the Daughters of Charity National Health System based in St. Louis, Missouri and the Sisters of St. Joseph Health System in Ann Arbor, Michigan. Today, Ascension Health is the governing body for all current Daughters of Charity National Health System and Sisters of St. Joseph Health System operations and facilities. Ascension Health also legally assumes responsibility for the financial operations of the two systems
Ascension Health is the largest not-for-profit health system in the United States, with a network of over 75 acute care, long-term care, and other healthcare facilities in 20 states and the District of Columbia. It employs more than 100,000 people and is headquartered in St. Louis, Missouri.