Review of Medicare Part D Prescription Drug Event Data for Schedule II Drugs at United HealthCare Medicare & Retirement

From January 1, 2008, through June 30, 2010, United HealthCare Medicare & Retirement (United) did not have adequate controls to (1) prevent unallowable partial fills of Schedule II drugs and (2) ensure the accuracy of certain fields in the Prescription Drug Event records submitted for Schedule II drugs as required by Federal regulations. United did not have specific controls to prevent refills of Schedule II drugs; however, the pharmacies that we visited either did not allow refills or had edits in place to prevent refills of those drugs.