The OIG has issued a report entitled “Medicare Advantage Organizations' Identification of Potential Fraud and Abuse.” In the report, the OIG observes that while CMS requires MA organizations to have compliance plans that include measures to detect, correct, and prevent fraud, waste, and abuse, the agency does not require MA organizations to report the results of their efforts to identify and address potential fraud and abuse incidents. Based on a review of data from 170 of 188 MA organizations that offered plans in 2009, the OIG found that 19% of MA organizations did not identify any potential fraud and abuse incidents related to Part C health benefits or Part D drug benefits. Those MA organizations that did identify potential fraud and abuse reported between 1 and 1.1 million incidents, with three organizations identifying 95% of the total 1.4 million reported incidents. The OIG attributes the variability in report in part to the way organizations defined and detected potential fraud and abuse. The OIG concludes that its “MA organizations lack a common understanding of key fraud and abuse program terms,” which raises questions about whether all MA organizations are effectively implementing their fraud and abuse detection/prevention programs. The OIG offers a series of recommendations to strengthen MA efforts to detect, correct, and prevent fraud, waste, and abuse.