Medicare Advantage Denials: How Seniors Can Appeal in 2026

Last updated: April 8, 2026

Bottom line: A Medicare Advantage prior authorization denial can delay needed care, but it is not always the final word. Current Medicare.gov appeal rules for Medicare health plans and CMS reconsideration guidance for Medicare Advantage let a member ask the plan to reconsider, and KFF’s 2024 Medicare Advantage prior authorization analysis found that more than 8 in 10 appealed denials were overturned. The fastest path is to read the notice the day it arrives, decide whether the case is urgent, and get the doctor’s support into the first appeal right away.

Emergency help now

1. Find the deadline on the notice and call both the plan and the doctor’s authorization team today. Current Medicare.gov Medicare health plan appeal rules say the first appeal usually must be filed within 65 days of the date on the denial notice.
2. If waiting could seriously harm health or slow recovery, ask for an expedited appeal right away. If a hospital, skilled nursing facility, home health agency, comprehensive outpatient rehabilitation facility, or hospice is ending care too soon, use the fast appeal through the Beneficiary and Family Centered Care-Quality Improvement Organization (BFCC-QIO) on the notice instead of waiting for a standard appeal.
3. Send a written level 1 appeal with the denial notice, doctor’s letter, and supporting records, then keep proof of fax, mail, or delivery. Even if the plan allows phone appeals, a paper trail usually helps.

Quick help

• First appeal deadline: usually 65 days from the date on the denial notice under current Medicare.gov Medicare health plan appeal rules and CMS managed care appeals guidance.
• Fast appeal: use it when waiting could seriously harm health or recovery. If a doctor asks for a fast appeal, the plan must expedite under CMS reconsideration guidance for Medicare Advantage.
• Outside review: if the plan upholds the denial or misses the level 1 deadline, the case goes automatically to an Independent Review Entity (IRE) outside the plan under CMS appeal rules.
• Caregiver help: a trusted family member or friend can help if the member signs the CMS-1696 Appointment of Representative form or a similar written statement.
• This guide covers: Medicare Advantage medical prior authorization denials and Part B drug denials. A pharmacy drug denial may follow a separate Medicare drug appeal path.

What this really means for seniors

Act like the notice starts a clock. In a Medicare Advantage plan, a coverage decision is called an organization determination. Prior authorization means the plan wants approval before certain care is given. A denial means the plan is not agreeing to cover or pay for the requested care based on the request it has right now.

Do not assume the denial is correct. The CMS 2024 Medicare Advantage final rule on prior authorization and coverage criteria says plans must follow Medicare coverage rules for basic benefits. The current CMS denial notice instructions also require a specific reason for the denial and a description of what information could support approval. That helps explain why appealed denials are often overturned.

Know which problem is being solved. A denied MRI, surgery, rehab stay, home health visit, skilled nursing facility stay, wheelchair, or infusion drug is a coverage problem. A rude phone call or long hold time is a grievance problem. If care is stopping too soon, especially after a hospital stay or during rehab, the urgent fast-appeal path can be different from a standard prior-authorization appeal.

Quick facts

• Appeals can work: KFF’s 2024 Medicare Advantage prior authorization analysis found 53 million prior authorization determinations, 4.1 million denials, and only 11.5% of denials appealed. But more than 8 in 10 appealed denials were overturned.
• Plans owe specific explanations: current CMS denial notice instructions require a detailed reason for the denial, the rule or policy relied on, and what information could support approval.
• 2026 transparency is better: under the CMS prior authorization reporting rules, Medicare Advantage organizations must publicly post certain prior-authorization lists and approval, denial, appeal, and extension metrics on their websites beginning in 2026.
• Initial prior-authorization timing is different from appeal timing: for 2026 medical prior-authorization requests involving items and services, CMS requires plans to send standard decisions to providers within 7 calendar days and urgent decisions within 72 hours. After a denial, the appeal timeframes are different and are listed below.

Who this is for

• Older adults enrolled in a Medicare Advantage plan anywhere in the United States.
• Caregivers, spouses, and adult children helping a parent who got a denial notice.
• People denied tests, surgery, rehab, skilled nursing facility care, home health, durable medical equipment, or a Medicare Part B drug.
• Members who already got the care and now have a payment denial or a bill.

Not this guide: If the person has Original Medicare only, the appeal path is different. The official Medicare Appeals booklet explains those rules.

How to read a Medicare Advantage denial notice

Start by marking up the notice with a pen. Most Medicare Advantage medical denials now use a Notice of Denial of Medical Coverage (or Payment), sometimes called an Integrated Denial Notice. Use the notice to find these items before calling anyone:

• Exactly what was denied: the test, surgery, rehab days, home health visits, skilled nursing facility care, equipment, or Part B drug.
• What type of denial it is: a request before care, a payment denial after care, or a notice that previously approved care is being stopped or reduced.
• The date on the notice: this is the date that usually starts the appeal clock.
• The reason for denial: under the current CMS notice instructions, the plan should give a specific reason and name the Medicare rule, plan policy, or other standard it relied on.
• What is missing: the notice should also say what information could support approval, such as records, therapy notes, imaging, medication history, or a clearer doctor explanation.
• How to appeal: look for the plan’s phone number, fax number, mailing address, and directions for standard and fast appeals.
• Who can help: check the section on appointing a representative if a family member or caregiver is doing the paperwork.
• Any Medicaid rights: if the member has both Medicare and Medicaid, the notice may include extra state appeal rights too.

Red flag: If the notice is vague, missing pages, or only says “not medically necessary,” call the plan and ask for the full notice and a copy of the case file. The official Medicare Appeals booklet says members can ask for the file containing medical and other information about the case.

Standard and expedited appeals side by side

Pick the right speed first. The timeframes below reflect current Medicare.gov Medicare health plan appeal rules and CMS reconsideration guidance for Medicare Advantage.

Standard vs. expedited appeals in Medicare Advantage

Question	Standard appeal	Expedited appeal
When to use it	When the care decision can safely wait for the normal review.	When waiting could seriously harm health, function, or recovery.
Who can ask	You, your representative, or your provider. Standard requests are safest in writing.	You, your representative, or your doctor. If the doctor asks for the fast appeal, the plan must expedite it.
How to ask	Usually in writing unless the plan accepts phone requests. Use the notice or the plan’s Evidence of Coverage (EOC).	By phone or in writing. Call first, then send the doctor’s support right away.
Plan decision time	Usually 30 days for a pre-service appeal, 60 days for a payment appeal, and 7 days for a standard Part B drug appeal.	Usually 72 hours for pre-service and Part B drug appeals.
If the plan says it is not urgent	The case stays in the standard track.	The plan must move it to the standard track and tell you how to file an expedited grievance. Ask the doctor to send urgent-support language the same day.

Important: If a hospital stay, skilled nursing facility stay, home health episode, comprehensive outpatient rehabilitation facility service, or hospice care is ending too soon, use the Medicare fast appeal process or the CMS BFCC-QIO review process on the notice. That is usually faster than a standard prior-authorization appeal.

How to do this without wasting time

Read the notice and write down the deadline

Write the service denied, the date on the notice, the case number, and the fax and phone number for appeals on one sheet of paper. Do this before calling anyone. The date on the notice matters.

Call the doctor’s authorization or referral team

Ask for the office that handles prior authorization, utilization management, referrals, or hospital discharge planning. Ask whether the denial was caused by missing records, a wrong code, a wrong setting, a network issue, or a medical-necessity dispute. Ask whether the office will resubmit the request, appeal the denial, or both.

Decide whether the case needs urgent review

If delay could worsen the condition, increase pain, slow recovery, raise the chance of a fall, or block a safe discharge plan, ask for an expedited appeal. Under CMS Medicare Advantage reconsideration rules, a physician’s request for an expedited appeal must be handled on a fast track.

Build one clean appeal packet

Send one organized packet instead of many loose pages. Put the denial notice first, then the appeal letter, then the doctor’s letter, then records. If the denial looks technical, ask the provider to resubmit the prior authorization with corrected records at the same time. That can sometimes fix the problem faster than the appeal alone.

Submit the first appeal the right way

Level 1 is called a reconsideration. Current Medicare.gov appeal rules say the member, representative, doctor, or provider must usually file within 65 days of the date on the denial notice. Standard appeals generally must be in writing unless the plan accepts phone requests. Expedited appeals can be made by phone or in writing.

In the first sentence, clearly say whether it is a standard reconsideration or an expedited reconsideration. State the date of the denial notice, the exact service or item denied, why the decision is wrong, and what records are attached. Include the member’s name, address, Medicare number, plan member number if shown, and phone number.

Use a paper trail

Fax is often the fastest paper-based option because it gives same-day proof. If mailing, use a trackable method and keep copies. After sending, call the plan, ask if the appeal was received, and write down the date, time, name of the person spoken to, and any reference number. If records are still coming, say so in writing and send them as soon as they are ready.

Document checklist

• ☐ The denial notice or every page of the denial packet
• ☐ The member’s Medicare number and plan member number
• ☐ A short appeal letter saying what was denied and whether the appeal is standard or expedited
• ☐ A doctor or specialist letter explaining medical necessity
• ☐ Office notes, hospital records, discharge summary, therapy notes, test results, imaging reports, or medication history
• ☐ Records showing what was already tried and why it did not work
• ☐ Any page from the plan’s Evidence of Coverage if it helps show the service should be covered
• ☐ A signed CMS-1696 Appointment of Representative form or similar written authorization if someone else is helping
• ☐ Fax confirmation, mail receipt, or other proof that the appeal was sent

What to ask the doctor or specialist to write

Ask for a focused letter, not a one-line note. The strongest letters answer the exact reason on the denial notice and tie the facts to the patient’s real needs.

• Name the exact service: say precisely what is being requested, including the setting, number of visits, number of days, or type of Part B drug.
• State the diagnosis and daily impact: explain symptoms, safety risks, loss of strength, pain, swallowing problems, fall risk, wound issues, or other functional limits.
• Explain why this care is medically necessary now: not next month and not “if needed later,” but now.
• Address alternatives: say what has already been tried, why it failed, or why a lower-cost or lower-level option is unsafe or not enough.
• Address the denial reason directly: if the plan says “not medically necessary,” “wrong setting,” or “missing prior authorization,” the letter should answer that exact issue.
• If a rule is named: ask the doctor to address the Medicare rule or plan policy named in the notice when appropriate.
• Explain the harm of delay: for urgent cases, ask the doctor to say that waiting may seriously jeopardize the patient’s life, health, or ability to regain maximum function. That matches the Medicare Advantage fast-appeal standard.
• Attach proof: recent notes, therapy logs, imaging, lab results, medication history, and discharge planning records matter more than general opinions.

Simple script for a doctor’s office: “Please answer the exact reason in the denial notice, explain why this service is medically necessary now, and attach records that show why delay would be harmful.”

Deadlines that matter most

Track the first few dates carefully. A Medicare Advantage case can move through five appeal levels. The structure below matches the current Medicare.gov Medicare health plan appeal overview, the CMS managed care appeals flow chart, and the current CMS page on Administrative Law Judge hearings. The first outside review starts at level 2 with an Independent Review Entity (IRE).

Medicare Advantage appeal levels after a prior authorization denial

Level	Who reviews it	How it starts	Deadline and timing
Level 1	The Medicare Advantage plan	You ask for a reconsideration after the denial notice.	Usually file within 65 days of the notice date. The plan generally has 30 days for a standard pre-service appeal, 60 days for a payment appeal, 7 days for a standard Part B drug appeal, or 72 hours for an expedited appeal.
Level 2	An Independent Review Entity outside the plan	It starts automatically if the plan upholds the denial or misses the level 1 deadline.	This is the first outside review. The IRE generally uses the same 30-day, 60-day, 7-day, or 72-hour timeframes, depending on the case type.
Level 3	The Office of Medicare Hearings and Appeals (OMHA) before an Administrative Law Judge (ALJ)	You ask for it if level 2 is denied.	Request it within 60 days of the level 2 decision. The case value must usually be at least $200 in 2026, and the current CMS flow chart shows no set federal processing deadline once the case reaches this level.
Level 4	Medicare Appeals Council	You ask for review of the level 3 decision.	Request it within 60 days of the OMHA decision. The current CMS flow chart shows no set federal processing deadline at this level.
Level 5	Federal District Court	You ask for judicial review after the Appeals Council decision.	Request it within 60 days. The amount remaining in dispute must usually be at least $1,960 in 2026.

If the plan misses a deadline: current CMS reconsideration rules require unfavorable level 1 decisions to be sent automatically to the outside reviewer. Current CMS organization-determination guidance also says a plan’s failure to give a timely decision on the original request counts as an adverse decision, which means there is something to appeal.

If the plan takes an extension: Medicare says the plan may add up to 14 days in some item or service cases if the delay is in the member’s interest and the plan explains why. If the plan refuses to speed up a fast appeal or takes an extension without clear reasons, ask how to file a grievance about that delay.

Reality checks

• The date on the notice starts the clock. Do not wait for the next appointment.
• A short doctor note is rarely enough. Denials often turn on detail.
• A phone promise is not approval. Keep written proof.
• Getting care before coverage is fixed can create a bill. Ask about the financial risk before moving ahead.

Common mistakes to avoid

• Missing the deadline. File first, then add more records if needed.
• Using the wrong path. If care is ending too soon in a hospital, skilled nursing facility, home health agency, comprehensive outpatient rehabilitation facility, or hospice, use the fast appeal on that notice instead of a routine prior-authorization appeal.
• Appealing too vaguely. “My doctor says I need it” is weaker than records that answer the denial reason line by line.
• Not asking for urgent review when health is at risk. If delay could worsen health or block recovery, say so clearly and get the doctor’s support.
• Assuming the doctor already appealed. Ask for the fax confirmation or appeal reference number.
• Ignoring billing while the appeal is pending. Open every bill, every Explanation of Benefits, and every collection notice.
• Letting the plan talk only to the patient when the caregiver is doing the work. Use a representative form if needed.

Best options by need

Use the quickest path for the actual problem. Not every denial needs the same response.

Best next move based on the kind of denial

If this is happening	Best next move	Why this helps
A test, MRI, CT, surgery, or outpatient procedure was denied before the appointment	Ask the doctor’s office to resubmit the prior authorization with corrected records and file a level 1 reconsideration the same day.	This can fix missing records or coding problems faster than waiting for a long appeal alone.
Skilled nursing facility, home health, hospice, rehabilitation, or hospital services are ending too soon	Use the BFCC-QIO fast appeal path shown on the notice.	This is usually the fastest way to challenge a discharge or service termination.
The care already happened and the plan will not pay	File a payment appeal, ask the provider to pause collections, and get a written reason for the denial.	Payment appeals have different timelines, and provider billing can snowball if ignored.
An infusion, injection, or other Part B drug was denied	Ask the treating doctor to explain why delay is unsafe and whether the 72-hour expedited appeal track is needed.	Part B drug appeal timelines can be faster than other medical appeals.
A caregiver or adult child is handling the case	Send the CMS-1696 representative form or a similar written appointment.	The plan can speak more freely and accept records from the helper.
The member switched to a new Medicare Advantage plan while already in treatment	Ask the new plan to apply the 90-day transition protection for an active course of treatment.	CMS added this rule to reduce care disruptions when a person changes plans.

What to do while waiting for a decision

• Keep the provider involved. Ask whether the office can send added records, a corrected prior authorization, or a stronger letter while the appeal is pending.
• Check messages every day. Plans often ask for more information quickly.
• Ask about safer short-term options. If the denied service cannot happen right away, ask the clinician whether there is a covered short-term option that protects health without giving up the appeal.
• Do not ignore bills. If a bill arrives, tell the provider or supplier in writing that the denial is under appeal and ask that collections be paused while the case is pending.
• Keep a call log. Write down every name, date, and reference number. This matters when notices are late or records go missing.
• Recheck urgency if the condition worsens. A case that started as standard can become urgent if pain, weakness, falls, infection risk, or discharge problems grow worse.

Important: A standard appeal does not always protect the member from paying for care received before the appeal is decided. A timely fast appeal for certain service terminations can provide stronger protection, which is why choosing the right path matters.

Troubleshooting common problems

Denial says “not medically necessary”

Ask the doctor to answer that phrase directly. The letter should explain why this patient, at this time, needs this exact service, amount, or setting. Ask for recent notes, therapy records, test results, and past treatment failures to be attached.

The plan is delaying or never answered

Current CMS guidance on organization determinations says a late decision on the original request counts as an adverse decision, which means there is something to appeal. Current CMS reconsideration guidance for Medicare Advantage also says untimely level 1 cases must be sent to the outside reviewer. Ask the plan whether the case has been forwarded to the Independent Review Entity.

The plan refused urgent review

If the plan says the case is not urgent, it should move the case to standard review and tell the member how to file an expedited grievance about the refusal to speed it up. Have the doctor resubmit the urgent request with stronger medical details the same day.

The bill looks wrong, or the provider says prior authorization was missing

Ask the provider whether the request was submitted, denied, or never sent. If a plan provider referred the member for covered care or to an out-of-network provider without getting an organization determination first, Medicare calls this plan-directed care, and in most cases the member should not owe more than normal plan cost sharing. Get the explanation in writing before paying a large bill.

The wrong notice arrived, or no written notice arrived

Do not rely on a phone call, portal message, or scheduling note. Ask the plan for the full written denial notice with appeal rights. The CMS Medicare Advantage denial notice rules require written notice when coverage or payment is denied, or when previously authorized care is reduced or stopped.

Paperwork is missing and the deadline is close

File the appeal anyway before the deadline. State that supporting records will follow. Then send additional pages with the member’s name, number, and case reference on every page. Late extra records are better than a late appeal.

Official help and free counseling

• Medicare: Call 1-800-MEDICARE (1-800-633-4227), TTY 1-877-486-2048, for plan contact details, appeal questions, or help finding the local BFCC-QIO.
• State Health Insurance Assistance Program (SHIP): Use the SHIP help finder for free, one-to-one Medicare counseling in every state.
• Medicare Rights Center: The nonprofit national helpline is 1-800-333-4114.
• Fast appeal help for service terminations: Use the number on the notice or the BFCC-QIO locator. CMS also explains the reviewer system on its BFCC-QIO information page.
• Representative paperwork: Use the CMS-1696 Appointment of Representative form if the member wants a caregiver, spouse, or adult child to act for them.

Frequently asked questions

How long does a senior have to appeal a Medicare Advantage prior authorization denial?

Current Medicare.gov appeal rules and CMS managed care guidance say the first appeal usually must be filed within 65 days of the date on the denial notice. Some older printed materials may still show 60 days, so the safest move is to file immediately and never count on extra time. If the deadline was missed, file anyway and explain why it was late.

Is a prior authorization denial final?

No. The first appeal goes back to the plan as a reconsideration. If the plan upholds the denial or misses the level 1 deadline, the case goes automatically to level 2 review by an Independent Review Entity outside the plan.

Who can ask for a fast appeal?

The member, a representative, or a doctor can ask for a fast appeal. Under CMS rules for Medicare Advantage reconsiderations, if the doctor requests the expedited appeal, the plan must handle it on a fast track.

What if rehab, home health, or a hospital discharge is ending too soon?

Use the Medicare fast appeal process on the notice. For hospital discharges, the deadline is very short. For many other settings, the request must usually be made by noon the day before coverage ends. If that deadline is missed, ask the plan for an expedited appeal right away.

What if the plan says the case is not urgent?

The plan should move the case to standard review and tell the member how to file an expedited grievance about the refusal to speed it up. The best next step is to have the doctor send a stronger urgent statement the same day.

What if the plan never answers?

A late answer matters. Current CMS guidance on organization determinations treats a missed timely decision on the original request as an adverse decision that can be appealed. Untimely level 1 appeal decisions must be forwarded to the outside reviewer.

Does a lawyer have to be hired?

No. Many members handle the first two levels with help from a doctor, caregiver, State Health Insurance Assistance Program counselor, or the Medicare Rights Center. A family member or friend can help more formally if the member signs the representative form.

Can the member get the service while the appeal is pending?

Sometimes, but not always. For hospital discharges and some service-termination cases, a timely fast appeal can protect coverage while the outside reviewer decides. For many other pre-service denials, getting care before approval can leave the member responsible for the bill if the appeal fails. Ask about the financial risk before moving ahead.

What if the denied drug is something picked up at the pharmacy?

That may be a Medicare Part D drug appeal instead of a Medicare Advantage medical appeal. Use the drug-plan denial notice and the instructions that came with it, or call 1-800-MEDICARE to confirm which appeal path applies.

Resumen en español

Si un plan Medicare Advantage niega una autorización previa, actúe de inmediato. Lea la carta el mismo día, busque la fecha límite y llame al consultorio del médico para pedir una apelación de nivel 1 con una carta médica fuerte y expedientes de apoyo.

Si esperar puede empeorar la salud, aumentar el dolor, retrasar la recuperación o impedir un alta segura, pida una apelación acelerada. Si el hospital, el centro de enfermería especializada, la atención médica en el hogar, el hospicio o la rehabilitación termina demasiado pronto, use la apelación rápida que aparece en el aviso.

Para ayuda gratis, llame a Medicare al 1-800-633-4227 o busque su programa SHIP local en SHIP Help. Un familiar o cuidador también puede ayudar con permiso por escrito.

About This Guide

This guide uses official federal, state, and other high-trust nonprofit and community sources mentioned in the article.

Editorial note: This guide is produced based on our Editorial Standards using official and other high-trust sources, regularly updated and monitored, but not affiliated with any government agency and not a substitute for official agency guidance. Individual eligibility outcomes cannot be guaranteed.

Verification: Last verified April 8, 2026, next review August 2026.

Corrections: Please note that despite our careful verification process, errors may still occur. Email info@grantsforseniors.org with corrections and we respond within 72 hours.

Disclaimer: This article is informational only. It is not legal, medical, disability-rights, insurance-broker, financial-planning, or government-agency advice. Coverage, billing, and appeal results depend on plan rules, medical records, deadlines, and individual case facts. When care is urgent, contact the treating clinician, the plan, and Medicare right away.