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The Simulation and Training Environment Laboratory of MedStar Health, which also owns and operates Washington Hospital Center and Georgetown University Hospital. (Marvin Joseph/The Washington Post)


MedStar Health

At the beginning of 2011, MedStar Health announced a new alliance with the Cleveland Clinic, combining the research efforts of the MedStar Institute for Innovation (MI2) and Cleveland Clinic Innovations (CCI). MedStar is a nonprofit, regional health care system featuring nine hospitals, 20 health-related organizations and more than 100 care sites in the Washington-Baltimore region.


The latest hospital to become part of MedStar was St. Mary’s Hospital, which joined in 2009.

5565 Sterrett Pl.

Columbia Md., 21044


Founded: 1998

President and CEO: Kenneth A. Samet

Employees (local): 27000 (15559)

NOTE: Our methodology for the rankings.