Medicare and Durable Medical Equipment (DME): What's Covered, What's Not, and How to Get What You Need

If you or a loved one needs a wheelchair, oxygen concentrator, CPAP machine, walker, or hospital bed at home, Medicare likely covers it, but the process isn't always straightforward. Durable Medical Equipment (DME) is one of the most commonly needed Medicare benefits for seniors, yet it's also one of the most misunderstood.

This guide breaks down exactly what Medicare covers, how to qualify, what you'll pay out of pocket, and what to do if a claim is denied.

What Is Durable Medical Equipment (DME)?

Medicare defines Durable Medical Equipment as medically necessary items that are:

• Durable: built to withstand repeated use over time
• Used for a medical purpose: not purely for comfort or convenience
• Appropriate for home use: designed for use in a patient's residence
• Prescribed by a doctor: a physician must order it

This definition matters because items that fail any of these criteria, like a standard mattress or a bathroom grab bar that isn't medically prescribed, won't qualify for coverage.

Common DME Items Covered by Medicare

Medicare Part B covers a wide range of equipment. Here are the most commonly used items among seniors:

Which Part of Medicare Covers DME?

Medicare Part B covers durable medical equipment. This is true whether you're on Original Medicare or a Medicare Advantage plan, though the specifics of how you access and pay for equipment can differ significantly between the two.

If you're on Original Medicare, understanding how Part B actually works, including what it covers and what it costs, is important before pursuing any DME claim.

Original Medicare (Part A + Part B)

With Original Medicare, DME coverage works like this:

• You pay the annual Part B deductible ($185 in 2026)
• After the deductible, you typically pay 20% coinsurance on the Medicare-approved amount
• Medicare pays the remaining 80%
• You must use a Medicare-approved DME supplier

That 20% coinsurance is uncapped, meaning for expensive equipment like a power wheelchair (which can run $3,000–$15,000+), your share can be substantial. This is one reason many beneficiaries pair Original Medicare with a Medigap supplement plan, which can cover most or all of that coinsurance.

Medicare Advantage Plans

Medicare Advantage plans must cover everything Original Medicare covers, including DME. However, they often have different cost-sharing structures: copays instead of coinsurance, prior authorization requirements, and specific supplier networks. Some plans offer additional benefits that go beyond what Original Medicare provides.

If you're comparing plan types, it's worth understanding the real cost differences between Medicare Advantage and Medigap, especially if you anticipate needing expensive equipment.

How to Get DME Covered by Medicare: Step by Step

Getting Medicare to pay for durable medical equipment involves a specific process. Skipping steps or working with the wrong supplier is one of the most common reasons claims get denied.

Step 1: Get a Doctor's Prescription

Everything starts with your physician. They must:

• Conduct a face-to-face examination (required for power mobility devices)
• Document the medical necessity: why you need this specific equipment
• Write a detailed prescription or Certificate of Medical Necessity (CMN)

Tip: Be specific with your doctor about your limitations. Vague documentation like "patient has trouble walking" is far more likely to be denied than "patient cannot ambulate more than 10 feet without severe dyspnea and risk of fall."

Step 2: Use a Medicare-Enrolled DME Supplier

This is where many people get tripped up. You must use a supplier that is enrolled in Medicare. If you buy equipment from a non-enrolled supplier, Medicare won't reimburse you. Period.

Medicare also uses a competitive bidding program in many metro areas. In these areas, you must use a contracted supplier for certain items, or you'll pay the full cost yourself. You can check which suppliers are contracted in your area at Medicare.gov's supplier directory.

Step 3: Prior Authorization (When Required)

Certain items, particularly power wheelchairs, power-operated vehicles (scooters), and some pressure-reducing mattresses, require prior authorization before Medicare will approve payment. Your DME supplier typically handles the prior auth process, but you should confirm this is underway before accepting delivery of the equipment. For a broader look at how prior authorization works across all types of Medicare coverage, see our guide on what agents want you to know about prior authorization.

Step 4: Understand Rental vs. Purchase

Not all DME is purchased outright. Medicare classifies equipment into categories that determine whether you rent or buy:

• Purchased items: walkers, canes, commode chairs, blood sugar monitors. You own them after a single purchase.
• Capped rental items: wheelchairs, hospital beds, patient lifts. Medicare rents these for up to 13 months, after which you own them.
• Oxygen equipment: rented for 36 months. After that, the supplier must continue providing equipment and supplies for an additional 24 months at no cost to you.
• CPAP machines: rented for 13 months with a mandatory 3-month compliance trial. If you don't demonstrate sufficient usage in the first 90 days, Medicare may stop covering it.

The CPAP Compliance Rule: What You Need to Know

CPAP coverage deserves special attention because Medicare applies a unique compliance requirement that catches many beneficiaries off guard.

During the first 90 days after receiving your CPAP machine, you must demonstrate that you're using it at least 4 hours per night for at least 70% of nights in a consecutive 30-day period. Your machine tracks this automatically. If you don't meet this threshold, Medicare may deny further coverage, and you could be stuck paying out of pocket or returning the equipment.

What you can do:

• Work closely with your sleep specialist and DME supplier during the trial period
• Ask about mask fitting and comfort adjustments early. Discomfort is the #1 reason people abandon CPAP
• Request a humidifier attachment if dryness is an issue (usually covered)
• Track your own usage through the machine's companion app

What Medicare Does NOT Cover

Understanding what's excluded is just as important as knowing what's covered:

• Comfort or convenience items: seat lift chairs (the lift mechanism itself isn't covered, only the seat), bathtub grab bars (unless medically prescribed), raised toilet seats
• Items not prescribed by a doctor: even if you clearly need a walker, Medicare won't pay without a physician's order
• Non-durable items: disposable supplies like bandages, incontinence pads, or single-use gloves (some covered under Part B for specific conditions)
• Duplicate equipment: Medicare typically covers one of each type of item at a time
• Equipment from non-enrolled suppliers: this cannot be stressed enough

Some of these exclusions catch beneficiaries off guard. For a look at other items and services with unexpected coverage rules, see 8 surprising Medicare coverage answers from agents.

What to Do If Your DME Claim Is Denied

DME denials are frustratingly common, and many of them are overturned on appeal. If you receive a denial, don't give up. You have the right to appeal, and the success rates at various appeal levels are encouraging.

The most common reasons for DME denials include:

• Insufficient documentation: the doctor's notes didn't adequately support medical necessity
• Wrong supplier: using a non-enrolled or non-contracted supplier
• Missing prior authorization: for items that required it
• Coding errors: incorrect HCPCS codes on the claim

If you're denied, start by requesting the detailed explanation from Medicare. Then work with your doctor to strengthen the documentation and file a formal appeal. Our guide on how to appeal a denied Medicare claim walks through the full five-level appeals process step by step.

DME and Medicare Advantage: Key Differences

If you're enrolled in a Medicare Advantage plan, your DME coverage works slightly differently:

• Network restrictions: many MA plans require you to use in-network DME suppliers. Going out of network may mean higher costs or no coverage.
• Prior authorization: MA plans often require prior auth for a wider range of equipment than Original Medicare does.
• Cost-sharing: instead of the 20% coinsurance, your plan may charge a flat copay. This can be better or worse depending on the equipment cost.
• Additional benefits: some MA plans cover items that Original Medicare doesn't, like certain bathroom safety equipment or over-the-counter health items.

The tradeoffs between plan types are real, and they matter most when you're facing significant equipment needs. If you're weighing your options, understanding the core differences between Medicare Advantage and Medicare Supplement plans is a good starting point.

Tips for Saving Money on DME

Even with Medicare coverage, DME costs can add up, especially if you need multiple items or expensive equipment. Here are practical ways to reduce your costs:

• Use assigned suppliers. Suppliers who "accept assignment" agree to charge only the Medicare-approved amount. You'll never pay more than 20% of that approved amount.
• Compare suppliers. Prices can vary between suppliers even for the same item. Get quotes from multiple Medicare-enrolled suppliers.
• Consider a Medigap plan. Plans C, D, F, and G cover the 20% Part B coinsurance, which can save thousands on expensive equipment.
• Check state assistance programs. Many states offer programs that help Medicare beneficiaries cover out-of-pocket costs. The State Health Insurance Assistance Program (SHIP) in your state can help you find options.
• Ask about refurbished equipment. For some items, Medicare-enrolled suppliers offer refurbished options at lower cost. You still pay 20% of the approved amount, but the base price may be lower.

When to Talk to a Medicare Agent About DME

Navigating DME coverage can be complex, especially if you're choosing between Original Medicare and a Medicare Advantage plan, or if you need expensive equipment and want to minimize out-of-pocket costs. A local Medicare agent can help you:

• Compare how different plans handle DME coverage and costs in your area
• Identify whether a Medigap supplement would save you money based on your expected equipment needs
• Understand your plan's supplier network and prior authorization requirements
• Connect you with resources if you're struggling with a denied claim

DME is one of those Medicare benefits that seems simple on paper but gets complicated fast in practice. The right plan, and the right guidance, can make a real difference in both your coverage and your wallet.