Medicare Appeal Deadlines You Cannot Miss

Getting a denial letter from Medicare or your Medicare Advantage plan is stressful enough. But there's a hidden danger that trips up many people: missing the deadline to appeal. Once that window closes, you may lose your right to fight the decision at all. Here's exactly how much time you have at each stage, and how to speed things up when your health can't wait.

Why Medicare Appeal Deadlines Matter So Much

Medicare's appeal system has five levels, and each one comes with its own strict filing window. Miss one deadline and, in most cases, you forfeit the chance to move to the next level. That's why it's so important to act quickly the moment you receive a denial, whether it's for a hospital stay, a medication, durable medical equipment, or a service your plan says isn't medically necessary.

The good news is that appeals work. Research from KFF, a nonpartisan health policy organization, has found that a large share of appealed Medicare Advantage prior-authorization denials get overturned in the patient's favor — roughly 80% in its 2024 analysis. If you've been denied, don't assume the answer is final. Appealing is often worth the effort.

Level 1: Redetermination or Reconsideration

Your first appeal depends on whether you have Original Medicare or a Medicare Advantage plan.

Original Medicare (Redetermination)

• You generally have 120 days from the date you receive your Medicare Summary Notice (MSN) to file a redetermination request with the company that handles Medicare claims in your area.
• The MSN arrives periodically — the mailing schedule has changed over time, so confirm the current cadence at Medicare.gov — and check the date printed on the notice carefully, since your window starts from when you receive it, not when it was mailed.

Medicare Advantage (Reconsideration)

• Medicare Advantage enrollees do not receive Medicare Summary Notices — your plan sends an Explanation of Benefits instead, and a denial arrives as an Integrated Denial Notice.
• If your Medicare Advantage plan denies a service or payment, you have 65 calendar days from the date on your denial notice to ask for a reconsideration. That is CMS's own figure, and it applies to both standard and fast-tracked requests — count from the date printed on the notice, not from the day it reached you, and file well before the deadline. If you do miss it, you can ask the plan to accept a late filing for good cause.
• If the denial involves a service you haven't received yet, and you need it urgently, you can request a fast decision (more on that below), which comes with a much shorter turnaround time for the plan to respond.

Always confirm the exact number of days listed on your specific denial letter, since timeframes can vary depending on the type of request. When in doubt, call 1-800-MEDICARE or check Medicare.gov for the current rules.

Level 2: Reconsideration by an Independent Review Entity

If your Level 1 appeal is denied, you move to Level 2, where an independent organization not affiliated with Medicare or your plan reviews the case.

• For Original Medicare, this is handled by a Qualified Independent Contractor (QIC). You generally have 180 days from the date you receive the redetermination decision to file this appeal (receipt is presumed five days after the date on the notice).
• For Medicare Advantage, denials that aren't overturned at reconsideration are automatically forwarded to an independent review entity, so you typically don't need to file anything extra at this stage, but you should still track the timeline and respond promptly to any requests for information.

Because rules and forwarding processes can change, verify current Level 2 deadlines and procedures for your specific plan type at Medicare.gov.

Level 3: Administrative Law Judge (ALJ) Hearing

If you're still denied at Level 2, you can request a hearing before an Administrative Law Judge.

• You usually have 60 days from the date you receive the Level 2 decision to file this request (receipt is presumed five days after the date on the notice).
• There is typically a minimum dollar amount in dispute required to qualify for an ALJ hearing. This amount can change each year, so confirm the current threshold on Medicare.gov before filing.
• ALJ hearings can be conducted by phone, video, or in writing, and you have the right to bring a representative, such as a family member, advocate, or attorney.

Level 4: Medicare Appeals Council Review

If the ALJ ruling isn't in your favor, you can ask the Medicare Appeals Council to review the decision.

• You generally have 60 days from the date you receive the ALJ's decision to file this request (receipt is presumed five days after the date on the notice).
• The Appeals Council can uphold, reverse, or send the case back to the ALJ for further review.

Level 5: Judicial Review in Federal District Court

The final level of appeal is a review in federal court.

• You typically have 60 days from the date you receive the Appeals Council's decision to file this action (receipt is presumed five days after the date on the notice).
• There is usually a minimum amount in dispute required to qualify, and this threshold is generally higher than the one required for an ALJ hearing. Confirm current amounts at Medicare.gov.

Very few cases reach this stage, but knowing it exists can be reassuring if your situation is complex or high-value.

How to Request an Expedited (Fast) Appeal

If waiting for a standard appeal decision could seriously jeopardize your health, life, or ability to regain maximum function, you have the right to ask for an expedited review. This is especially common with:

• Hospital discharge appeals, where you believe you're being sent home too soon.
• Denials of ongoing skilled nursing, home health, or rehabilitation services.
• Pre-service denials for medications or treatments you haven't yet received but need urgently.

Steps to Request an Expedited Appeal

• Tell your plan or Medicare directly, in writing or by phone, that you are requesting an expedited or "fast" appeal due to a health risk.
• Ask your doctor to submit a statement supporting the urgency of your request. This can significantly speed up the review and strengthen your case.
• Keep a written record of who you spoke to, the date, and what was said, in case you need to reference it later.

Expedited decisions are generally issued much faster than standard appeals, often within a matter of days rather than weeks. Exact timeframes can vary by appeal type, so confirm the current turnaround time for your situation at Medicare.gov or by calling 1-800-MEDICARE.

Fast-Track Appeals: Two Different Settings, Two Different Deadlines

If care is ending and you disagree, you can ask for an immediate review by your Beneficiary and Family Centered Care Quality Improvement Organization (BFCC-QIO). This is the fastest route in Medicare — but the deadline depends on where you are, and the two are not interchangeable. Find the one that matches your situation.

If you are an inpatient in a hospital facing discharge

You must contact the BFCC-QIO by midnight of the day of discharge, and before you leave the hospital. You can call or put it in writing. The notice explaining these rights is the Important Message from Medicare, which the hospital must give you during your stay; it lists the BFCC-QIO phone number to call.

If your skilled nursing, home health, or outpatient rehab (CORF) coverage is ending

This is a different notice and a different clock. Before your services end you should receive a Notice of Medicare Non-Coverage (NOMNC), which shows the date your coverage stops. You must ask for the fast-track review by noon of the day before that effective date — that is, by noon of the first day after the notice is delivered to you. If the BFCC-QIO is closed because of an emergency and cannot take your request, you have until noon of the next day it is open for business.

If you miss the deadline, you have not lost your rights

This matters, because people often believe a missed fast-track deadline is the end of it. It is not. You keep your fast-track appeal rights even if you miss the deadline on the notice, and you can still appeal after you have left the facility or your services have already ended. For a hospital discharge, if you did not reach the BFCC-QIO in time you can also ask your Medicare Advantage plan directly for an expedited reconsideration. Either way, do not stop at a missed date.

Tips to Avoid Missing a Deadline

• Open and read every notice from Medicare or your plan as soon as it arrives. Don't set it aside.
• Mark the deadline on a calendar the same day you receive a denial.
• Submit your appeal in writing whenever possible, and keep copies of everything you send.
• If you're close to a deadline and unsure how to proceed, call 1-800-MEDICARE for guidance rather than letting the date pass.
• Consider asking a family member, caregiver, or patient advocate to help you track dates and paperwork, especially during a hospital stay or medical crisis.

Don't Give Up After a Denial

It's easy to feel discouraged after receiving a denial letter, especially when you're already dealing with a health issue. But remember that appeals frequently succeed, and denials that are appealed are often overturned in the patient's favor. Missing a deadline is one of the few things that can truly end your chances, so the most important step you can take right now is to note your filing window and act before it closes.

Every notice you receive from Medicare or your plan should include the specific deadline that applies to your case. When in doubt, always double check current timeframes and dollar thresholds at Medicare.gov or by calling 1-800-MEDICARE, since these details can be updated from year to year.

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.