The American Hospital Association again is calling on HHS to stop using extrapolation audits to estimate hospitals' Medicare overpayments because the extrapolations inflate how much providers must return and the audits are inaccurate. The AHA in June asked HHS to stop the HHS Office of Inspector General's extrapolation reviews and the collections that follow, and in an Aug. 21 letter, the AHA said it hopes the extrapolation audits have stopped. “Last month, however, the OIG issued another audit report using...