Review of Medicare Fee-for-Service Payments Made by National Government Services, Inc., for Medicare Advantage Enrollees During Calendar Years 2007 and 2008

Medicare fee-for-service payments made by National Government Services, Inc. (NGS), a Centers for Medicare & Medicaid Services contractor, during calendar years 2007 and 2008 to hospitals for inpatient services furnished to Medicare Advantage enrollees did not always comply with Federal regulations. NGS made $133,000 in unallowable payments to hospitals for inpatient claims for beneficiaries who were enrolled in Medicare Advantage plans.