Enhancements Needed in the Tracking and Collection of Medicare Overpayments Identified by ZPICs and PSCs

This study continues OIG's body of work examining overpayments made by Medicare. Overpayments can be identified by a number of key players including providers and Medicare contractors. Recovering overpayments is critical to reducing improper payments in the Medicare program. Past OIG work found that overpayments referred by program safeguard contractors (PSCs) for collection did not result in significant recoveries to the Medicare program. As of 2012, CMS had transitioned the workload of most PSCs to six zone program integrity contractors (ZPICs). In 2016, CMS began transitioning the remaining PSCs and ZPICs to unified program integrity contractors (UPICs). OIG's work on both PSCs and ZPICs identified deficiencies in how contractors were tracking and reporting overpayment data. This study provides an update on the collection of ZPIC- and PSC-referred overpayments and identifies ongoing challenges that contractors face in tracking and collecting overpayments identified by ZPICs and PSCs.