RT Journal A1 Mitka M T1 MEdicare advantage JF JAMA JO JAMA YR 2010 FD March 10 VO 303 IS 10 SP 929 OP 929 DO 10.1001/jama.2010.232 UL http://dx.doi.org/10.1001/jama.2010.232 AB In its report (http://www.gao.gov/new.items/d1036.pdf), released January 19, the GAO found that the CMS had taken compliance and enforcement actions for inappropriate marketing against at least 73 organizations that sponsored Medicare Advantage plans (private capitated health plans) from January 2006 through February 2009. These organizations represented about 7.4 million beneficiaries (about 71% of all Advantage plan beneficiaries).