By the numbers. Largest national healthcare associations. Organizations ranked by 2004 revenue, with noted exceptions. Based on Modern Healthcare's review of IRS form 990 filings.
D054598:Blue Cross Blue Shield Insurance Plans / Q000191:economics; D003625:Data Collection; D019981:Health Care Sector / Q000145:classification / Q000458:organization & administration*; D007182:Income / Q000706:statistics & numerical data; D012954:Societies, Hospital / Q000145:classification / Q000191:economics*; D012955:Societies, Medical / Q000145:classification / Q000191:economics*; D014481:United States