How to Appeal a Medicare Advantage Denial (Step-by-Step)

Getting a denial letter from your Medicare Advantage plan can feel like a dead end, especially when you're worried about a surgery, a hospital stay, or a medication you need right now. The good news is that a denial is not the final word. It's simply the start of a process you have every right to use, and thousands of people win these appeals every year.

This guide walks you through exactly how the Medicare Advantage appeals process works, the deadlines you need to know, and what separates a weak appeal from one that actually gets approved.

Why You Shouldn't Give Up After a Denial

Many people assume a denial letter is final, so they never bother to appeal. That's a mistake. A large share of Medicare Advantage appeals that are actually filed end up overturned, at least in part, in favor of the member. Insurance companies deny claims for many reasons, including simple paperwork errors, missing documentation, or overly strict interpretations of coverage rules. Once you push back with the right information, plans often reverse course.

The bottom line: if you believe your denial was wrong, it's almost always worth appealing.

The Five Levels of Medicare Advantage Appeals

Medicare Advantage plans are required to follow a specific appeals structure set by Medicare. If you lose at one level, you can move to the next. Here's how it works.

Level 1: Reconsideration by Your Plan

This is also called an internal appeal. You ask your Medicare Advantage plan to look at its own decision again. Every denial letter you receive must explain how to file this appeal and the deadline for doing so.

• For standard requests, plans generally have a set number of days to respond, and this window can be shorter if your case is urgent.
• If your health could be seriously harmed by waiting, ask for an expedited (fast) appeal. Plans must respond much more quickly to these.

Always confirm exact deadlines and response times for your specific situation at Medicare.gov or by calling 1-800-MEDICARE, since timeframes can vary depending on whether the denial involves a service you haven't received yet or a claim for something already provided.

Level 2: Independent Review Entity (IRE)

If your plan upholds its denial at Level 1, your case is automatically forwarded to an outside reviewer called an Independent Review Entity. This organization has no financial relationship with your plan, which means it's reviewing your case with fresh eyes.

You don't have to do anything extra to trigger this review in most cases, but you should still send any new supporting documents you have to strengthen your file.

Level 3: Office of Medicare Hearings and Appeals (OMHA)

If the IRE also denies your appeal, you can request a hearing before an Administrative Law Judge (ALJ) through the Office of Medicare Hearings and Appeals. There is typically a minimum dollar amount your case must meet to qualify for this level, and that amount can change from year to year, so check current requirements at Medicare.gov.

This hearing may be held by phone or video, and it's your chance to explain your case directly, often with help from a doctor, caregiver, or advocate.

Level 4: Medicare Appeals Council

If you disagree with the ALJ's decision, you can ask the Medicare Appeals Council (part of the Departmental Appeals Board) to review it. This level looks closely at whether the law and Medicare rules were applied correctly to your case.

Level 5: Federal District Court

The final level allows you to file a lawsuit in federal court, but only if the amount in dispute meets a minimum threshold that Medicare updates periodically. Very few appeals reach this stage, but it exists as your ultimate right of review.

Key Deadlines You Need to Watch

Missing a deadline is one of the most common reasons people lose their right to appeal, so mark these dates as soon as you get a denial letter.

• Level 1 deadline: 60 days from the date you received the denial notice. Because Medicare presumes you received it five days after the date printed on it, this is often described as 65 days from the notice date. To be safe, count 60 days from when it reached you and file well before then. Confirm the exact deadline printed on your letter.
• Expedited appeals: If waiting could harm your health, you can request a fast decision, which plans must handle much more quickly than standard appeals.
• Each subsequent level: Has its own deadline, typically counted from the date you receive the decision at the prior level.

Because these timeframes can shift and depend on the type of denial, always verify current deadlines at Medicare.gov or by calling 1-800-MEDICARE before you file.

What a Winning Appeal File Looks Like

The strength of your appeal often comes down to the quality of the documentation you submit. A thin appeal that simply says "I disagree" rarely succeeds. A strong file tells a clear, evidence-backed story about why the denied service or item was medically necessary.

1. The Denial Letter Itself

Keep the original notice. It contains the specific reason for denial, which tells you exactly what you need to counter.

2. A Letter of Medical Necessity

Ask your doctor to write a letter explaining why the treatment, test, or medication was necessary for your specific condition. This letter should reference your medical history and explain what could happen without the treatment.

3. Supporting Medical Records

Include relevant chart notes, test results, imaging reports, or hospital records that back up your doctor's letter. The more directly these documents connect to the reason for denial, the stronger your case.

4. A Personal Statement

A short letter in your own words describing how the denied service affects your daily life and health can add a human dimension that helps reviewers understand the real stakes.

5. Any Relevant Plan Documents

If your plan's own coverage policy supports your case, include the relevant section. Sometimes a plan's own rules actually back up your claim, and pointing this out directly can speed up a reversal.

6. A Clear, Organized Cover Letter

Summarize your case in plain language: what was denied, why you believe it should be covered, and which documents are attached. Number your attachments so reviewers can find everything easily.

Tips to Strengthen Your Appeal

• Request an expedited appeal if delaying care could harm your health, and say so clearly in writing.
• Keep copies of everything you send and note the date you sent it.
• Follow up by phone a few days after mailing or submitting documents to confirm they were received.
• Ask your doctor's office for help; many are familiar with writing medical necessity letters for Medicare Advantage appeals.
• Consider asking a family member, caregiver, or patient advocate to help organize paperwork and track deadlines.

Where to Get Help

You don't have to navigate this alone. Your State Health Insurance Assistance Program (SHIP) offers free, unbiased counseling and can help you understand your denial letter and prepare an appeal. You can also call 1-800-MEDICARE with questions about deadlines, forms, or the status of your appeal at any level.

A denial is frustrating, but it's rarely the end of the road. With a well-documented appeal and a clear understanding of the five levels of review, many people successfully overturn decisions that once seemed final. Don't let a denial letter be the last word on your care.

This article is general education, not legal or medical advice. Medicare rules, deadlines, and dollar amounts change; confirm the current details for your situation at Medicare.gov or by calling 1-800-MEDICARE. MedicareClaimDenied.com is not affiliated with or endorsed by Medicare, CMS, or any insurer.