Your doctor ordered a wheelchair, a CPAP machine, oxygen equipment, or a hospital bed, and you thought that would be the end of it. Then a letter arrived saying your Medicare Advantage plan would not cover it. It is a frustrating, confusing moment, especially when you are relying on that equipment to breathe, move, or sleep safely.

Here is the reframing that makes the rest of this article useful: many durable medical equipment (DME) denials are not actually about whether you need the item. They often turn on what the request documented, or on how and from whom the equipment was ordered. That means your first job is not to re-argue your medical need. It is to figure out exactly which kind of denial you are dealing with.

Step 1: Read the Denial Notice Carefully

Your Medicare Advantage plan's denial letter has a formal name: the Notice of Denial of Medical Coverage or Payment (NDMCP, Form CMS-10003), often called the Integrated Denial Notice. This notice is where your appeal begins, and two pieces of information on it matter more than anything else:

  • The stated reason for the denial, written out in the plan's own words.
  • The deadline for filing your appeal.

Read the stated reason slowly. Plans deny DME for several different reasons, and the fix depends entirely on which one you are facing: missing prior authorization, an out-of-network supplier, incomplete documentation, or a determination that the item does not meet coverage criteria. Do not assume you know the reason until you have read the notice itself.

Step 2: Check Your Plan's Own DME Rules

Medicare Advantage plans are allowed to set their own rules for how DME gets approved, on top of whatever Original Medicare covers. Two documents spell this out: your plan's Evidence of Coverage, and its separately published prior-authorization list. Your provider directory is not the right place to look; the prior-authorization list and the Evidence of Coverage are.

Did the Item Need Prior Authorization?

Some equipment in some plans requires prior authorization before it is covered, and whether that applies to your item depends entirely on your specific plan's rules. Confirm this directly with your plan rather than assuming either way. If prior authorization was required and was not obtained before the equipment was ordered, that alone can trigger a denial, even when the item itself is clearly covered.

Did the Equipment Come From a Contracted Supplier?

Many Medicare Advantage plans also require that DME come from a supplier the plan has a contract with. This is a separate requirement from whether the item is covered at all. An item that is fully covered under your plan can still be denied because it was ordered through a supplier outside the plan's network.

If this is the reason behind your denial, reordering the same equipment through a supplier your plan contracts with is often the usual way to resolve it. It is not a guaranteed fix in every case, but it addresses the actual problem the plan identified, rather than re-arguing medical necessity for an item the plan may never have disputed needing in the first place. Confirm your plan's specific supplier network requirements directly with your plan before you reorder anything.

Step 3: Get the Prescriber's Documentation Right

This is the core of many successful appeals. Once you know the plan's stated reason for denial, go back to the prescriber who ordered the equipment and ask for a letter of medical necessity that speaks directly to that reason. A strong letter typically covers:

  • Your diagnosis
  • How your condition limits you day to day
  • Why this specific item, and not a lesser alternative, is medically necessary
  • What is likely to happen to your health without it

Pair the letter with supporting medical records, such as office notes, test results, or evaluations that back up what the letter says. For more detail on how to put this letter together, see our guide on writing a letter of medical necessity for Medicare. If you are also drafting your written appeal, our Medicare denial appeal letter template can help you organize it clearly.

Step 4: File Your Level 1 Appeal on Time

For a Medicare Advantage denial, your Level 1 appeal is called a plan reconsideration. You must file it within 65 calendar days of the date on the notice. This deadline runs from the date printed on the notice itself, not from whenever the letter happened to arrive in your mailbox, so you do not need to guess at mail delivery timing. The same 65-calendar-day deadline applies whether you are requesting a standard or an expedited Level 1 appeal.

If you believe you have good cause for filing late, you can ask your plan for an extension, but it is always safer to file as early as possible.

If your plan reviews your appeal and upholds its original denial, your case does not simply end there. It is automatically forwarded to the Independent Review Entity (IRE), an independent contractor that works on behalf of CMS, for a fresh look. You do not need to file a separate request to trigger this step.

When Equipment Is Needed Urgently

If your DME is time-sensitive, oxygen is the clearest example, you can ask for an expedited appeal. An expedited Medicare Advantage reconsideration must be decided within 72 hours. This is the timeframe for the appeal of an existing denial. It is a separate clock from an expedited initial coverage request, which is the process you use before any denial has happened, when you are first asking your plan to approve equipment quickly. Keep these two timeframes separate in your mind as you navigate your situation, since they apply at different stages of the process.

Why New-Year Denials Happen Even When Nothing Changed

Prior-authorization requirements, coverage criteria, and supplier networks are set by your plan for each plan year and reset every January 1. That means equipment that was approved last year under the same plan can require new prior authorization, or be denied outright, this year, even though your condition has not changed at all. This is one of the more common and more frustrating reasons people find themselves appealing a DME request they thought was already settled.

Don't Give Up on the Appeal

It is easy to feel like a denial is the final word, especially when you are dealing with equipment you rely on every day. But appeals for Medicare Advantage prior-authorization denials are often successful. According to a 2024 KFF analysis, roughly 80% of appealed Medicare Advantage prior-authorization denials were overturned. The same analysis found that only about 11.5% of denied Medicare Advantage prior-authorization requests were ever appealed at all. In other words, many people who could have appealed never did, and appealing often pays off for the people who do.

That is not a guarantee for your specific situation, but it is a strong reason to go through the steps above rather than simply accepting a denial and going without equipment your prescriber says you need.

Keep These Details Straight

  • Confirm the stated reason and the deadline on your Integrated Denial Notice first.
  • Check your Evidence of Coverage and prior-authorization list for your plan's specific rules on prior authorization and contracted suppliers.
  • Ask your prescriber for a letter of medical necessity that answers the plan's stated reason directly.
  • File your Level 1 appeal within 65 calendar days of the date on the notice.
  • Ask for expedited review if the equipment is urgently needed.

Rules, deadlines, and dollar amounts can change, so always confirm the current details for your situation at Medicare.gov or by calling 1-800-MEDICARE.

Denied? You don't have to fight alone.

DENIED. — The Insider's Manual to Winning Your Medicare Advantage Appeal walks you through every step and includes 5 ready-to-send appeal letters you can fill in and mail today.

Get the book on Amazon — Kindle or paperback →

Already read it? A quick review helps the next person find it.

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.