CMS will require providers to report and return overpayments they identified or should have known about, according to a rule finalized Wednesday (Feb. 11), though providers will only be responsible for looking back six years for overpayments, rather than 10 years as CMS had proposed. Some attorneys following the rule say the requirement that a provider return overpayments “when the person has or should have, through the exercise of reasonable diligence, determined that the person has received an overpayment,” could...