A Medicare denial isn't final: you have the right to appeal it through five levels, starting with a free redetermination you can request within 120 days. If Medicare or your plan refused to cover a service, a drug, or a hospital stay, this is how you push back. This guide walks through each level for Original Medicare and for Medicare Advantage and Part D, the deadlines, the 2026 dollar thresholds, and the fast-track appeal for when your health can't wait.
Start by reading the notice
Before you appeal anything, find the document that told you no. Where it comes from depends on how you get your coverage, and it sets your clock running.
If you have Original Medicare (Parts A and B), the denial shows up on your Medicare Summary Notice (MSN), the quarterly statement listing the claims Medicare processed for you. The MSN marks which claims were denied and, in the right-hand margin, gives you appeal instructions and your deadline. If you have a Medicare Advantage plan or a Part D drug plan, the denial comes from the plan itself, usually as a letter or a notice called an Integrated Denial Notice or a coverage determination. Either way, the notice is the starting point. It names the service, the reason for the denial, and the window you have to act.
Two things matter most when you read it: the date, because your deadline counts from there, and the stated reason, because your appeal has to answer it. A denial for "not medically necessary" needs a different response than one for a paperwork or coding error.
The five levels of an Original Medicare denial appeal
For Original Medicare, the path is set by the Centers for Medicare and Medicaid Services and laid out on the Medicare.gov appeals page. Here's how each level works, and what you have to do to keep moving.Centers for Medicare & Medicaid Services. (n.d.). Appeals in Original Medicare. medicare.gov. Retrieved Jul 15, 2026, from https://www.medicare.gov/providers-services/claims-appeals-complaints/appeals/original-medicare
Level 1, Redetermination. Your first appeal goes to the Medicare Administrative Contractor (MAC), the company that processed your claim. You file within 120 days of receiving the Medicare Summary Notice that reports the denial, and the notice itself prints your deadline in the margin. The simplest way is to circle the disputed items on the MSN, sign it, and mail it in following the instructions printed on the notice, or file the redetermination request form. There's no minimum dollar amount at this level, so any denial qualifies. The MAC generally has 60 days to decide.
Level 2, Reconsideration. If the MAC upholds the denial, you can ask a Qualified Independent Contractor (QIC), a separate reviewer, to take a fresh look. You file within 180 days of the redetermination decision. This is your chance to add anything the first reviewer didn't have: a letter from your doctor, medical records, or a clearer explanation of why the service was needed. The QIC also generally has 60 days to respond.
Level 3, Administrative Law Judge (ALJ) hearing. If the QIC says no, you can request a hearing before an Administrative Law Judge at the Office of Medicare Hearings and Appeals (OMHA). You file within 60 days of the reconsideration decision. This is the first level with a dollar threshold: in 2026, the amount in controversy must be at least $200. A hearing is usually held by phone or video, and you can explain your case directly to the judge.Centers for Medicare & Medicaid Services. (n.d.). Appeals in Original Medicare. medicare.gov. Retrieved Jul 15, 2026, from https://www.medicare.gov/providers-services/claims-appeals-complaints/appeals/original-medicare
Level 4, Medicare Appeals Council. If the judge rules against you, you can ask the Medicare Appeals Council, part of the Departmental Appeals Board, to review the decision. You file within 60 days of the ALJ decision. The Council reviews the record and can agree with you, agree with the denial, or send the case back for another look.
Level 5, Federal District Court. The final step is judicial review in federal district court. You file within 60 days of the Council's decision, and in 2026 the amount in controversy must be at least $1,960. By this point most people are working with an attorney, but the right to bring your case before a federal judge is yours.Centers for Medicare & Medicaid Services. (n.d.). Appeals in Original Medicare. medicare.gov. Retrieved Jul 15, 2026, from https://www.medicare.gov/providers-services/claims-appeals-complaints/appeals/original-medicare
You don't have to go all five levels. Most appeals end at Level 1 or 2, either because the denial is reversed or because the reader decides the disputed amount isn't worth the next step. The structure is there so you can go as far as your case warrants.
| Level | Who reviews it | Deadline to file | 2026 dollar threshold |
|---|---|---|---|
| 1. Redetermination | Medicare Administrative Contractor (MAC) | 120 days from receiving the Medicare Summary Notice | None |
| 2. Reconsideration | Qualified Independent Contractor (QIC) | 180 days from the redetermination | None |
| 3. ALJ hearing | Administrative Law Judge (OMHA) | 60 days from the reconsideration | At least $200 |
| 4. Appeals Council review | Medicare Appeals Council | 60 days from the ALJ decision | None |
| 5. Judicial review | Federal district court | 60 days from the Council decision | At least $1,960 |
The two dollar thresholds reset each year. The 2026 figures above ($200 to reach a judge, $1,960 to reach court) hold from January 1 through December 31, 2026, so confirm the current amount if your appeal runs into a new calendar year.Centers for Medicare & Medicaid Services. (n.d.). Appeals in Original Medicare. medicare.gov. Retrieved Jul 15, 2026, from https://www.medicare.gov/providers-services/claims-appeals-complaints/appeals/original-medicare
How to tell if your appeal meets the dollar threshold
The threshold is the amount in controversy, which is the portion of the bill still in dispute, not the full charge. To find it, start with the denied charge and subtract anything Medicare already paid and anything you've already been reimbursed; what is left is the amount in controversy. If that remainder is at least $200, your case can go to an Administrative Law Judge at Level 3. To reach federal court at Level 5, the remainder must be at least $1,960. So a claim where Medicare's share has been paid and exactly $200 is still denied clears the Level 3 bar, while a larger disputed balance is needed for court. If a single denial falls short, you can sometimes combine related claims to clear the threshold, and the steps below Level 3 (redetermination and reconsideration) have no minimum at all.Centers for Medicare & Medicaid Services. (n.d.). Appeals in Original Medicare. medicare.gov. Retrieved Jul 15, 2026, from https://www.medicare.gov/providers-services/claims-appeals-complaints/appeals/original-medicare
Appeals in Medicare Advantage and Part D
If you have a Medicare Advantage plan (Part C) or a stand-alone Part D drug plan, your appeal follows the same five-level shape, but the first step is different: you start with your plan, not with a government contractor.
It begins with the plan. Before you can appeal a Medicare Advantage denial, the plan has to make a coverage decision (called an organization determination for Part C, or a coverage determination for Part D). Once the plan denies coverage, your Level 1 appeal is a request that the plan reconsider its own decision. For a Medicare Advantage service, this is a reconsideration; for a Part D drug, it's a redetermination by the plan.
Then an outside reviewer takes over. If the plan upholds its denial, the case goes to an Independent Review Entity (IRE), an outside organization that isn't your plan. That's Level 2. For a Medicare Advantage (Part C) service denial, the plan must forward an adverse reconsideration to the IRE automatically, so you don't have to ask; for a Part D drug denial, you request the IRE review yourself. From there, Levels 3, 4, and 5 are the same as Original Medicare: an Administrative Law Judge at OMHA, the Medicare Appeals Council, and federal district court, with the same 2026 dollar thresholds ($200 and $1,960).Centers for Medicare & Medicaid Services. (n.d.). Appeals in Original Medicare. medicare.gov. Retrieved Jul 15, 2026, from https://www.medicare.gov/providers-services/claims-appeals-complaints/appeals/original-medicare
The deadlines on the plan side are generally tighter and faster than Original Medicare's. The details for drug plans are spelled out on the Medicare drug plan appeals page, and your plan's denial notice will give you the exact dates that apply to your case. Read that notice closely, because plan timelines can run shorter than the Original Medicare windows above.
The fast (expedited) appeal when your health can't wait
Here's the part that matters most when care is urgent. Medicare Advantage and Part D plans must offer an expedited (fast) appeal when waiting for a standard decision could seriously jeopardize your life, your health, or your ability to regain maximum function. You or your doctor can ask for it. When a physician supports the request, the plan must treat it as expedited.Centers for Medicare & Medicaid Services. (n.d.). Appeals in Original Medicare. medicare.gov. Retrieved Jul 15, 2026, from https://www.medicare.gov/providers-services/claims-appeals-complaints/appeals/original-medicare
A standard plan appeal can take days; an expedited one is decided much faster, generally within 72 hours.Centers for Medicare & Medicaid Services. (n.d.). Appeals in Original Medicare. medicare.gov. Retrieved Jul 15, 2026, from https://www.medicare.gov/providers-services/claims-appeals-complaints/appeals/original-medicare So if you've been denied a drug you need now, or a plan is cutting off a service while you still need it, ask for the fast track and have your doctor say in writing why the delay would harm you. This option exists specifically for situations where the calendar itself is the danger.
How to file a Medicare denial appeal and improve your odds
The mechanics of filing are simpler than the five-level structure makes them sound. A few habits make an appeal stronger.
Hit the deadline, and file early if you can. The single most common reason appeals fail isn't a weak case, it's a missed date. Mark your deadline the day the denial arrives. If you have a good reason for missing it (a hospitalization, for instance), you can ask for more time by showing "good cause," but don't rely on that. File well inside the window.
Get your doctor involved. A denial for "not medically necessary" is answered most powerfully by the person who ordered the care. A letter of medical necessity, your chart notes, and any relevant test results give the reviewer a reason to reverse. Your doctor can also file or support the appeal on your behalf.
Keep copies of everything. Save the denial notice, your written appeal, anything you submit, and proof of when you sent it. If the appeal moves up a level, you'll want the full record in one place.
Get free help. Every state has a State Health Insurance Assistance Program (SHIP) that gives free, personalized, and unbiased counseling on Medicare, including appeals, and it can walk you through your specific notice and deadlines at no cost.Centers for Medicare & Medicaid Services. (2026). Medicare & You 2026 (CMS publication 10050, medicare.gov). medicare.gov. Retrieved Aug 22, 2026, from https://www.medicare.gov/publications/10050-medicare-and-you.pdf Find your state's counselor through the national locator at shiphelp.org or through eldercare.acl.gov. Many states run the program under a different name, such as HICAP, SHINE, or SHICK, so don't be thrown if the office you reach calls itself something else.Centers for Medicare & Medicaid Services. (2026). Medicare & You 2026 (CMS publication 10050, medicare.gov). medicare.gov. Retrieved Jul 15, 2026, from https://www.medicare.gov/publications/10050-medicare-and-you.pdf Medicare's own helpline, 1-800-MEDICARE (1-800-633-4227; TTY 1-877-486-2048), is the official national line for beneficiary questions and reaches a real person 24 hours a day, 7 days a week, except some federal holidays.Centers for Medicare & Medicaid Services. (n.d.). Contact Medicare — Medicare.gov. medicare.gov. Retrieved Jul 23, 2026, from https://www.medicare.gov/talk-to-someone If a concern about your case goes unresolved there or with your plan, you can ask the representative to send it to the Medicare Beneficiary Ombudsman, who helps beneficiaries gather the information they need to pursue an appeal.U.S. Social Security Administration. (n.d.). Social Security Act §1808 — Provisions Relating to Administration (SSA Compilation of the Social Security Laws). ssa.gov. Retrieved Aug 7, 2026, from https://www.ssa.gov/OP_Home/ssact/title18/1808.htm You can also appoint a representative, a family member, a friend, or an attorney, to handle the appeal for you by filing an Appointment of Representative form.
One special case is worth knowing. If you were admitted to the hospital as an inpatient and then reclassified to outpatient "observation status" during the stay, and that switch cost you the three-day inpatient stay Medicare requires before it will cover skilled nursing care, the class-action case Alexander v. Azar led CMS to create a separate right to appeal the status change itself, distinct from the five levels above. If the switch was made on or after February 14, 2025, the hospital must give you a Medicare Change of Status Notice (CMS-10868), and you or your representative can request a fast appeal through your state's Beneficiary and Family Centered Care Quality Improvement Organization (BFCC-QIO). If possible it is best to file while you are still in the hospital, but that right does not end at discharge. You still have appeal rights and can ask for an appeal after you leave, following the instructions on the notice, or by contacting your local BFCC-QIO to file if you cannot find it.Centers for Medicare & Medicaid Services. (n.d.). Hospital Appeals -Change of Inpatient Status (Alexander v Azar). cms.gov. Retrieved Jul 12, 2026, from https://www.cms.gov/medicare/appeals-grievances/original-medicare-appeals/hospital-appeals-change-inpatient-status-alexander-v-azar The parallel track for older stays, those admitted between January 1, 2009 and February 13, 2025, closed to new filings on January 2, 2026, so a request there after that date is denied as untimely unless you can show good cause for filing late.Centers for Medicare & Medicaid Services. (n.d.). Hospital Appeals -Change of Inpatient Status (Alexander v Azar). cms.gov. Retrieved Jul 12, 2026, from https://www.cms.gov/medicare/appeals-grievances/original-medicare-appeals/hospital-appeals-change-inpatient-status-alexander-v-azar See the observation status guide for who qualifies and how each track works.
Frequently Asked Questions
How long do I have to appeal a Medicare denial?
It depends on the level and the type of coverage. For Original Medicare, you have 120 days from receiving the Medicare Summary Notice to file the first appeal (redetermination), then 180 days for the second level, and 60 days for each level after that. Medicare Advantage and Part D plans run on their own, often shorter, timelines, which your denial notice will state. When in doubt, file as early as you can.
Does it cost anything to appeal?
No. Filing a Medicare appeal is free at every level. You may choose to hire an attorney, especially at the higher levels, but you're never charged a fee just to submit an appeal.
What are my chances of winning?
It varies by the type of denial and how well it's documented, but appeals are reversed often enough to be worth filing, and a denial reversed early saves you the higher levels. The strongest appeals answer the exact reason for the denial and include support from the doctor who ordered the care. Don't assume a first denial is the final word.
Can someone file the appeal for me?
Yes. You can appoint a representative, a family member, a friend, your doctor, or an attorney, to file and manage the appeal on your behalf. You do this by submitting an Appointment of Representative form (CMS-1696) or an equivalent written statement. Your doctor can also support a medical-necessity appeal directly.
What's the difference between a fast appeal and a standard one?
A standard appeal follows the normal timeline. A fast (expedited) appeal, available in Medicare Advantage and Part D, is for when waiting could seriously harm your health; it's decided much faster, generally within 72 hours. You or your doctor can request it, and when a physician backs the request, the plan must expedite it.
Where can I get free help with an appeal?
Your State Health Insurance Assistance Program (SHIP) offers free, personalized, and unbiased Medicare counseling, including help filing an appeal, at no cost to you.Centers for Medicare & Medicaid Services. (2026). Medicare & You 2026 (CMS publication 10050, medicare.gov). medicare.gov. Retrieved Aug 22, 2026, from https://www.medicare.gov/publications/10050-medicare-and-you.pdf Find yours with the "Find Local Medicare Help" locator at shiphelp.org, or call the SHIP National Technical Assistance Center at 1-877-839-2675.Centers for Medicare & Medicaid Services. (2026). Medicare & You 2026 (CMS publication 10050, medicare.gov). medicare.gov. Retrieved Jul 15, 2026, from https://www.medicare.gov/publications/10050-medicare-and-you.pdf For an Original Medicare question, 1-800-MEDICARE (1-800-633-4227, TTY 1-877-486-2048) reaches a real person 24 hours a day, 7 days a week, except some federal holidays.Centers for Medicare & Medicaid Services. (n.d.). Contact Medicare — Medicare.gov. medicare.gov. Retrieved Jul 23, 2026, from https://www.medicare.gov/talk-to-someone
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The information on Brevy.com is for educational purposes only and is not a substitute for professional legal, financial, or medical advice. Rules vary by state and program and change frequently. Always verify with the relevant agency or a qualified professional. Brevy is not a law firm, financial advisor, or healthcare provider.