The drop in CMS' improper pay rate for fee-for-service Medicare was driven by a reduction in improper pay to home health agencies and inpatient rehabilitation facilities -- though CMS says home health companies and IRFs, along with nursing homes, were the major contributors to the 9.5 percent improper pay rate in fiscal 2017, and the HHS Office of Inspector General said program integrity is still a top management challenge for the agency. Medicare's improper pay rate has not been below...