The regulatory process for appealing Medicare claim denials and overpayments is a complex, lengthy, and administratively burdensome process. Through up to five levels of appeals, Medicare-enrolled providers and suppliers, and their representatives, must contend with inflexible deadlines, tight procedural and bureaucratic requirements, and biased reviewers, all while contesting the denials and asserting the medical necessity of the items or services at issue.
After a Medicare Administrative Contractor (MAC) has issued an Initial Demand, the letter that informs the provider of the claim denials, the reasons for the denials, and the amount of repayment demanded, the first step in appeal is Redetermination. Redetermination review is conducted by the same MAC who issued the Initial Demand and the contractor nearly always upholds its earlier decision. A provider can stop or halt recoupment of the alleged overpayment at this stage of appeal, but only if it requests Redetermination within a certain timeframe.
After Redetermination, the next level of appeal is Reconsideration. Reconsideration is conducted by a Qualified Independent Contractor (QIC), a separate Medicare contractor than the contractor that conducted Redetermination. The QIC is generally more impartial than the MAC, but often finds against the provider. A provider can stop or halt recoupment of the alleged overpayment at this stage of appeal as well, but only if it requests Reconsideration within a certain timeframe.
Wachler & Associates Health Law Blog

