The Five Levels of Medicare Appeal: How to Fight a Denied Claim

A denied Medicare claim or coverage decision is not the end of the road. Medicare law gives beneficiaries a structured five-level appeal process with specific timeframes, escalating decision-makers, and rights that must be honored at each stage. Most people do not appeal because they do not know the process exists or assume appeals do not succeed. The data suggests otherwise: a significant proportion of appeals at every level, including the earliest plan-level reviews, result in decisions favorable to the beneficiary. The process exists to be used.

Bryce's Take

Appeals succeed more often than people expect, especially at the plan level when strong physician documentation is submitted. The peer-to-peer review, your doctor speaking directly with the plan's medical director, resolves more cases than formal appeal data shows, because those calls do not always generate logged appeals. If you have received a denial, do not accept it as final. Start the appeal and have your doctor request a peer-to-peer simultaneously.

Level one: Redetermination

The first level of appeal is a redetermination request, submitted to the same entity that made the initial decision. For Original Medicare claims, this goes to your Medicare Administrative Contractor. For Medicare Advantage or Part D decisions, it goes back to your plan. The plan or MAC reviews the claim again, typically with additional documentation you submit. Timeframes: for Part A and B redeterminations, the MAC has 60 days. For Advantage pre-service coverage decisions, the plan has 30 days for standard requests and 72 hours for expedited requests. You must file within 120 days of the initial determination date. Include all supporting clinical documentation with your request. Redeterminations succeed more often than most people expect because additional documentation frequently addresses the reason for the initial denial.

Level two: Reconsideration by a Qualified Independent Contractor

If level one is unsuccessful, the second level goes to a Qualified Independent Contractor (QIC), an organization independent of your plan or MAC. For Part A and B, the QIC is contracted by CMS. For Medicare Advantage and Part D, a separate Independent Review Entity (IRE) reviews the decision. The QIC or IRE is not affiliated with the entity that denied your claim and applies Medicare coverage rules independently. Timeframes: 60 days for standard requests, 72 hours for expedited. You must appeal within 180 days of receiving the level one decision. Submit any additional clinical evidence at this stage. IRE decisions are binding on the plan.

Level three: ALJ hearing before OMHA

If both plan-level and QIC-level reviews go against you, you can request a hearing before an Administrative Law Judge at the Office of Medicare Hearings and Appeals. The ALJ is entirely independent and conducts a formal hearing. The amount in controversy must meet a minimum threshold (approximately $220 in 2025) to request an ALJ hearing. You can request a hearing in person, by video, or by telephone. The ALJ has 90 days to decide. You may submit additional evidence and can be represented by an attorney or authorized representative. ALJ decisions have substantial authority and frequently overturn earlier decisions when the clinical documentation is strong.

Level four: Medicare Appeals Council

If the ALJ denies your appeal, you can escalate to the Medicare Appeals Council, a component of the Departmental Appeals Board within HHS. The MAC reviews the ALJ decision for legal and factual errors. The MAC can accept, reverse, modify, or remand the ALJ's decision. There is no set timeframe for MAC decisions, though they aim for 90 days. The amount in controversy minimum continues to apply. The MAC also has authority to review cases on its own motion even without a beneficiary request if it identifies potential errors.

Level five: Federal District Court

The final level of the Medicare appeals process is federal district court. You may file a civil action in federal court challenging the Medicare Appeals Council decision. The amount in controversy must meet a federal court threshold (approximately $1,760 in 2025). Cases that reach federal court typically involve larger dollar amounts, complex coverage questions, or systemic issues about Medicare coverage rules. Most Medicare appeals are resolved at earlier levels. Legal representation is important at the federal court level.

Practical tips for winning at any level

Several factors consistently improve appeal outcomes. Clinical documentation is the most important, a detailed letter of medical necessity from your physician citing specific clinical guidelines, your patient's specific clinical circumstances, and the medical rationale for the denied service or drug provides the foundation for every successful appeal. Know the reason for the denial and respond to it directly. For Medicare Advantage prior authorization denials, the peer-to-peer review between your physician and the plan's medical director (available at level one) often resolves cases before formal appeals are necessary. Timely filing matters, missing the deadline forfeits your appeal right at that level. Keep copies of everything you submit and receive.

Bryce Casson

Licensed Independent Medicare Broker

Bryce Casson is an independent Medicare insurance broker who works with every major carrier. He does not represent any single insurer, which means his recommendations are based on what actually fits each client's situation, not on commissions or quotas.