Medicare coverage for durable medical equipment — wheelchairs, oxygen supplies, CPAP devices, walkers — is a lifeline for millions of seniors. But coverage decisions do not always go your way. When a DME claim is denied, the first question most people ask is "what now?" The answer is: you can appeal. And you should.

1. Why DME Claims Get Denied

Understanding why Medicare denied your claim is the first step to successfully overturning that decision. Common reasons for DME claim denials include:

  • Prior authorization not obtained — Some DME items require a Certificate of Medical Necessity (CMN) or prior authorization before Medicare will pay. If yours was not submitted, the claim gets denied.
  • Medical necessity not documented — Medicare requires the treating physician to clearly document why the specific equipment is medically necessary for the patient's condition.
  • Supplier not Medicare-enrolled — Using a supplier who is not accredited and enrolled in Medicare automatically disqualifies a claim.
  • Equipment considered "not reasonable and necessary" — Medicare's definition of covered DME includes specific clinical criteria. If the equipment does not meet those criteria, coverage can be denied.
  • Benefit category mismatch — Some items look like DME but fall into a different Medicare benefit category (like prosthetic devices or orthotics), which have different coverage rules.
  • Patient not enrolled in Medicare Part B — DME is covered under Part B. If the patient only has Part A, a separate Part B enrollment may be required.

Find a Medicare-enrolled DME supplier near you →

2. Know Your Appeal Rights

Every Medicare beneficiary has the right to appeal a coverage decision. This is not a courtesy — it is a formal legal right protected under the Medicare program. You can appeal any decision where Medicare refuses to pay for equipment or service you received (or believe you were entitled to receive).

The appeals process is designed to be accessible. You do not need a lawyer to file a first-level appeal. Many patients successfully navigate the process on their own or with help from a caregiver or patient advocate.

3. The Four-Level Medicare Appeals Process

Medicare handles DME appeals through a four-level structured process. Each level has specific deadlines, requirements, and addresses. Here is how it works.

Level 1: Redetermination by Your Medicare Administrative Contractor (MAC)

The first step is requesting a redetermination — a review of the original claim decision by your Medicare Administrative Contractor. MACs are private companies contracted by Medicare to process claims and handle first-level appeals.

Deadline: You have 120 days from the date on the Medicare Summary Notice (MSN) to request a redetermination.

How to file:

  • Complete the CMS-20027 form (Medicare Reconsideration Request) — available at cms.gov
  • Include a copy of the MSN showing the denied claim
  • Attach a letter explaining why you believe the claim should be covered
  • Include any supporting medical documentation — physician notes, letters of medical necessity, test results, etc.
  • Mail the package to the address on the MSN or the MAC's regional address

The MAC must respond within 60 days of receiving your request. Most first-level appeals are decided based on the written record — no hearing is involved.

Level 2: Reconsideration by a Qualified Independent Contractor (QIC)

If the redetermination is denied and you want to continue, the next step is reconsideration by a Qualified Independent Contractor. QICs are independent review entities that have no connection to the MAC that handled Level 1.

Deadline: You have 180 days from the date of the Level 1 decision notice to request reconsideration.

What is different at Level 2:

  • The QIC conducts a more independent review — they are not the same organization as the MAC
  • You can submit additional medical evidence that was not available at Level 1
  • The QIC must issue a decision within 60 days

If the QIC upholds the denial, you can advance to Level 3.

Level 3: Administrative Law Judge (ALJ) Hearing

Level 3 is where the process becomes more formal — you request a hearing before an Administrative Law Judge. This is the first level where you can present your case in person (or via video) and potentially have testimony from medical experts.

Minimum amount in controversy: To qualify for an ALJ hearing, the amount in dispute must meet a minimum dollar threshold (this adjusts annually — verify the current amount with Medicare). For most individual DME denials, this threshold is reachable.

Deadline: You have 60 days from the date of the Level 2 decision notice to request an ALJ hearing.

How to prepare:

  • Organize all documentation from Levels 1 and 2
  • Write a clear, concise summary of why the equipment is medically necessary
  • Include updated letters from your treating physician specifically addressing the denial rationale
  • Consider having your physician or a medical expert testify (in person or via written declaration) about the medical necessity of the equipment
  • Review the Medicare coverage criteria for the specific item and be ready to explain why your situation meets those criteria

ALJ decisions typically come within 90 days, though processing times vary.

Level 4: Medicare Appeals Council (Council Review)

If the ALJ decision is unfavorable, you can escalate to the Medicare Appeals Council — a national-level review body within the Department of Health and Human Services.

Deadline: You have 60 days from the date of the ALJ decision to request Council review.

The Council reviews whether the ALJ applied the law correctly and followed proper procedures. They can affirm, reverse, or remand the decision. They typically issue a decision within 90 days.

Level 5: Federal District Court

The final level of appeal is a lawsuit in Federal District Court. To proceed to this level, you must meet the same minimum amount-in-controversy threshold required for Level 3. Federal court is the last resort — and the most time-intensive and expensive option. Most DME appeals are resolved at Level 3 or 4.

4. Building a Strong Appeal

The documentation you submit at each level matters. A well-prepared appeal clearly addresses the reason for denial and provides compelling medical evidence. Here is what to include.

Letter of Medical Necessity

This is the single most important document in your appeal. A strong letter from your treating physician should:

  • Explain the patient's diagnosis and how the equipment directly addresses their specific medical needs
  • Reference the specific Medicare coverage criteria the equipment meets
  • Describe what would happen to the patient's health and safety without the equipment
  • Note why alternative, less expensive equipment is not sufficient

The letter should be written by the physician who is treating the patient — not a general practitioner who has never examined them. If your specialist (pulmonologist, orthopedist, physiatrist) wrote the original order, they should write the appeal letter too.

Additional Medical Records

Attach relevant clinical notes, lab results, imaging reports, and therapy notes that support the medical necessity claim. The more specific the clinical picture, the harder it is for the reviewer to argue the equipment is not necessary.

Peer-to-Peer Consultation

Many suppliers and physicians can request a peer-to-peer conversation with the Medicare medical director or review contractor. This is an informal call where a physician discusses the case directly with the reviewer. It can be highly effective — a direct clinical conversation often resolves confusion that paperwork cannot. Ask your physician's office to initiate this if the claim was denied for medical necessity reasons.

Review Medicare DME coverage rules and requirements →

5. Key Deadlines to Remember

Missing an appeal deadline can forfeit your right to challenge a denial. Keep these dates on your calendar:

  • 120 days — Request redetermination (Level 1) from the MSN date
  • 180 days — Request reconsideration (Level 2) from the Level 1 decision
  • 60 days — Request ALJ hearing (Level 3) from the Level 2 decision
  • 60 days — Request Council review (Level 4) from the ALJ decision

If you miss a deadline due to circumstances beyond your control (hospitalization, natural disaster, etc.), you can request an extension by writing to Medicare explaining the cause. Good documentation of the circumstances is important.

6. Get Help — You Do Not Have to Do This Alone

If the appeals process feels overwhelming, you are not alone. Several resources can help:

  • State Health Insurance Assistance Program (SHIP) — Free, independent counseling for Medicare beneficiaries. Trained counselors can help you understand your rights, organize your appeal documentation, and sometimes accompany you to hearings.
  • Your DME supplier — Many suppliers have experience filing appeals and may assist with the process, particularly if they believe the denial was due to paperwork errors.
  • Patient advocacy organizations — Organizations focused on specific conditions (American Lung Association, Arthritis Foundation, etc.) often have appeal templates and staff who can guide you through the process for equipment related to your condition.

7. Frequently Asked Questions

How long does the whole appeals process take?

It depends on the level and the complexity of your case. A straightforward Level 1 redetermination might take 60–90 days from request to decision. If you advance through all four levels, the entire process can take 12–18 months. If your health or safety depends on the equipment, you can request an "expedited" appeal at any level — Medicare must respond within 72 hours for urgent medical need cases.

Can I continue using the equipment while the appeal is pending?

Potentially — but this depends on the supplier and whether they are willing to continue providing the equipment while awaiting the appeal decision. Some suppliers will continue providing equipment on a "comfort claim" basis (they hold the claim open without billing you). Others require payment upfront and seek reimbursement later. Discuss this with your DME supplier before filing an appeal if you want to continue using the equipment.

What if Medicare approves the appeal but I already paid out of pocket?

If you paid for the equipment yourself before the appeal was decided, you can file a claim for reimbursement (Form CMS-1493S) after the appeal is won. Keep all receipts and documentation. Reimbursement typically takes 30–60 days after approval.

Can a family member or caregiver file the appeal for me?

Yes. You can appoint a representative — a family member, friend, caregiver, or attorney — to file and manage the appeal on your behalf. You will need to sign an Appointment of Representative form (CMS-1696) authorizing them to act on your behalf. The form must be included with the appeal package at each level.

What if my situation is urgent and I cannot wait months for an appeal decision?

Request an expedited appeal. If a physician or other authorized medical professional confirms that waiting for a standard appeal timeline could seriously jeopardize your life, health, or ability to regain maximum function, Medicare must process your appeal on an accelerated schedule. For expedited appeals, Medicare typically issues a decision within 72 hours.

Need to find a Medicare-enrolled DME supplier or verify coverage? Search our directory → to find accredited equipment providers and understand what Medicare covers in your area.