University of Michigan Hospitals and Health Centers (Ann Arbor, Mich.)

Physicians in UMHS saved $15 million in the first four years of the Medicare Physician Group Practice Demonstration Project, the precursor to ACOs, mainly by focusing on transitions of patients coming in and out of hospital. With 930 beds, 179 ICU beds, and 66 ORs, UMHS generates 44,683 total surgical cases a year. Moody’s Investor Services gave University of Michigan Hospitals an Aa2 bond rating. Among many distinctions, the HHS Hospital Compare Report gave UMHS high marks in for care in heart attack, heart failure, pneumonia and surgical infection prevention.