Medicare 2026

How to Appeal a Medicare Coverage Decision: A Step-by-Step Guide

If Medicare or your plan says "no" to a service, item, or prescription you believe should be covered, you don't have to accept that answer. Medicare has a formal appeals process, and millions of people use it every year. Many denials are overturned when a doctor's note or additional records are added. This guide walks through how appeals work in Original Medicare, in Medicare Advantage, and in Part D, plus what to do when you need a decision fast.

First, understand what you received

Any denial comes with a written notice. In Original Medicare, you'll see a Medicare Summary Notice (MSN) listing services that were not covered. In a Medicare Advantage plan or a Part D drug plan, you'll receive a coverage decision letter. These documents explain why the claim was denied and spell out your appeal rights, the deadline to file, and where to send your request. Keep the notice; you'll need the date and claim information when you file.

Before formally appealing, it's often worth a quick call to the provider's billing office or the plan. Sometimes a denial is simply a coding error that can be corrected without an appeal.

Appeals in Original Medicare: five levels

Original Medicare uses a five-step ladder. You only move to the next step if the previous decision doesn't go your way.

1. Redetermination by the Medicare Administrative Contractor that processed the claim. This is your written request to have the claim looked at again, usually with supporting documentation from your doctor. 2. Reconsideration by a Qualified Independent Contractor (QIC), a reviewer separate from the first decision-maker. 3. Hearing before an Administrative Law Judge (ALJ), available when the amount in dispute meets a minimum threshold set each year. You can appear by phone or video. 4. Review by the Medicare Appeals Council, part of the Departmental Appeals Board. 5. Federal district court, again subject to a minimum dollar amount in dispute.

Each level has its own filing deadline, which is printed on the decision you receive. Missing a deadline doesn't automatically end your case — you can ask for an extension for good cause — but it's far easier to file on time.

Appeals in a Medicare Advantage plan

If you're enrolled in a Medicare Advantage plan, the plan itself handles the first review.

• Step 1: Reconsideration by the plan. You (or your doctor, or someone you appoint) ask the plan to look again at a denied service or claim.
• Step 2: Independent Review Entity (IRE). If the plan upholds its denial, your file is sent automatically to an outside reviewer that has no financial tie to your plan.
• Steps 3–5: From there, the appeal can continue to an Administrative Law Judge, the Medicare Appeals Council, and federal court, just as in Original Medicare.

Medicare Advantage plans must offer both a standard review and an expedited (72-hour) review when waiting could seriously harm your health. Your doctor can request the fast track on your behalf.

Appeals in Part D (prescription drug coverage)

Part D has its own path, and it starts a step earlier than medical appeals.

• Coverage determination. You ask your plan to cover a drug, cover it at a lower cost-sharing tier, or waive a rule such as prior authorization or step therapy. Asking for an exception to the plan's formulary is a type of coverage determination, and your prescriber's supporting statement carries weight.
• Redetermination. If the plan says no, you request a formal appeal to the plan.
• From there, the case can move to the IRE, an ALJ, the Appeals Council, and federal court.

As with Medicare Advantage, expedited decisions are available when your health could be jeopardized by waiting.

Fast appeals for hospital discharges and ending services

If you're in the hospital and believe you're being discharged too soon — or if your skilled nursing, home health, or hospice care is ending while you still need it — you have the right to an immediate review by the Beneficiary and Family Centered Care Quality Improvement Organization (BFCC-QIO). File before you leave or before services end, and in many cases you won't owe for the extra day(s) while the QIO reviews your case. The hospital or facility must give you a notice explaining this right.

Practical tips that help appeals succeed

• Ask your doctor to write a letter explaining why the service or drug is medically necessary. For Part D exception requests, a prescriber's statement is often required.
• Submit records, including office notes, test results, and prior treatment history.
• Appoint a representative if you want a family member, friend, or attorney to handle the appeal for you. Medicare has a standard form for this.
• Keep copies of everything and send appeals in a way you can track.
• Watch deadlines — they are printed on every denial notice.

A quick note on changing plans

Appeals are separate from enrollment. But if your coverage isn't fitting your needs, the Annual Enrollment Period runs October 15 through December 7, 2026, with changes effective January 1, 2027. People who have Medicaid or qualify for Extra Help have a monthly Special Enrollment Period to move to Original Medicare with a stand-alone Part D plan or to switch stand-alone drug plans, and full-benefit dual-eligible individuals can join an integrated D-SNP in any month.

Choosing between Medicare Advantage and Original Medicare (often paired with a Medigap policy and a stand-alone Part D plan) is a personal decision. Each path has trade-offs around networks, referrals, out-of-pocket limits, and extra benefits. There is no single right answer.

Where can you get help with Medicare questions?

For official forms, deadlines, and step-by-step instructions, visit Medicare.gov or call 1-800-MEDICARE (1-800-633-4227), available 24 hours a day, seven days a week. TTY users can call 1-877-486-2048. Having your Medicare number and the denial notice in front of you will make the call go faster.