Illinois Masonic derives its name from members of the Eastern Star freemasons, a fraternal order that bought a hospital in 1921 and raised millions for an ambitious expansion campaign. The 408-licensed bed teaching hospital is now part of Oakbrook, Ill.-based Advocate Health Care. The hospital has more than 880 active physicians representing more than 40 specialties and is one of four Level I Trauma Centers in Chicago. Advocate Health Care has an Aa2 bond rating from Moody’s Investor Services and recently entered talks with M.D. Anderson Cancer Center in Houston about a partnership.