Walkers, wheelchairs and hospital beds — what Medicare's DME rules actually require

At some point a walker, a rollator, a shower chair, a wheelchair or an adjustable bed stops being optional. Medicare pays for a good part of that, under a category called durable medical equipment (DME) — but the rules are narrow in ways that surprise people, and most of the money people lose here is lost at the supplier’s counter rather than in Medicare’s decision.

Everything below was checked against Medicare’s own coverage pages in August 2026. Figures are 2026 calendar-year figures.

Five words that decide what counts

Medicare’s definition of DME has five parts. Equipment must be:

1. Durable — it can withstand repeated use
2. Used for a medical reason
3. Typically only useful to someone who is sick or injured
4. Used in your home
5. Expected to last at least 3 years

Most disputes come down to conditions three and four.

Condition three is why a treadmill, an ordinary recliner or a fitness tracker is not DME, however much your neurologist recommends exercise. Healthy people buy those too.

Condition four — used in your home — is the one that catches mobility devices. Medicare is assessing whether you need the equipment to get around inside your home. A scooter you want mainly for shopping trips and outings is a reasonable thing to want, and a hard thing to get covered on this rule.

What is on the list

Medicare’s own list of covered DME “includes, but isn’t limited to” the following. The items relevant to Parkinson’s are in bold.

Canes · Commode chairs · CPAP therapy · Crutches · Glucose monitors and supplies · High frequency chest oscillation devices · Hospital beds · Infusion pumps and supplies · Lymphedema powered devices · Oxygen equipment · Respiratory assist devices · Walkers · Wheelchairs and scooters

Note what is not there. Grab bars, ramps, stair lifts, widened doorways and bathroom modifications are not durable medical equipment — they are changes to the building. That does not mean nobody pays for them. Medicaid home and community-based waivers commonly do, and our page on Medicaid and HCBS waivers explains how those work. It does mean asking Medicare is the wrong first call.

Rent, buy, or somewhere in between

Medicare handles different equipment differently:

Depending on the type of equipment: You may need to rent the equipment. You may need to buy the equipment. You may be able to choose whether to rent or buy the equipment. Some items become your property after you’ve made a certain number of rental payments.

You do not get to pick freely. Ask the supplier which category your specific item falls into, because it changes the second question below — and with rented equipment the assignment rule turns into the biggest financial trap in this whole area.

The supplier decides what you pay, not Medicare

This is the section to read twice.

Medicare sets an approved amount for each item. After your $283 Part B deductible in 2026 you pay 20% of that approved amount — if your supplier accepts assignment. Medicare’s own wording on what “assignment” buys you:

If a supplier participates in Medicare, they must accept assignment (which means, they can charge you only the coinsurance and Part B deductible for the Medicare-approved amount). A non-participating provider doesn’t have to accept assignment, but may choose to do so in your case. If a DME supplier doesn’t participate in Medicare or won’t accept assignment, you may be charged more.

So there are three questions to ask before anything leaves the shop, in this order:

1. Are you enrolled in Medicare? Medicare tells you to make sure both your doctors and your suppliers are.
2. Do you participate in Medicare, or will you accept assignment on my claim? Participation is the stronger answer, because it obliges them.
3. For rentals — will you accept assignment for every rental month?

That third question is the expensive one. Medicare’s warning is blunt:

For rented DME, make sure the supplier is willing to accept assignment for all rental months, otherwise you’ll have to pay the full cost of your DME upfront.

Medicare will reimburse you afterwards, once claims are processed. But “afterwards” and “the full cost of a hospital bed” are not a comfortable combination for most households.

You can look suppliers up before you go, at medicare.gov/medical-equipment-suppliers.

Power wheelchairs and scooters have two extra hurdles

Medicare treats powered mobility more strictly than a walker or a cane.

A face-to-face examination and a written prescription. In Medicare’s words, “you must have a face-to-face examination and a written prescription from a treating provider before Medicare covers a power wheelchair or scooter.” A phone consultation does not satisfy this.

Prior authorization for some models. For certain power wheelchairs, Medicare must approve coverage before you receive the chair. The good news is that this is the supplier’s job, not yours: “your DME supplier will usually submit a prior authorization request and all documentation to Medicare on your behalf.” Medicare lists two reasons a request gets denied — that you do not medically require a power wheelchair, or that Medicare did not receive enough information to decide. The second reason is fixable; the supplier can resubmit.

Which is the point of the next section.

Write the order around function, not diagnosis

“Parkinson’s disease” is a diagnosis. It is not a statement of medical necessity, and an order that says little more than that is the most common reason equipment gets refused.

What decision-makers need is a description of what you cannot safely do without the item, in your home. Compare these two:

• “Parkinson’s disease. Rollator.”
• “Freezing of gait at doorways and turns, with three falls in the past six months. Unable to walk the 12 feet from bed to bathroom without support or a rest. Requires a wheeled walker with seat and hand brakes for safe indoor ambulation.”

The second one answers the question being asked. Before the appointment, write down the concrete version yourself — distances, times of day, falls and near-falls, which rooms are the problem — and hand it to your care team. They are documenting your function; you are the source for it.

Two things specific to Parkinson’s are worth saying out loud in that note.

Symptoms fluctuate. If your best moments happen in the clinic and your worst happen at 5 a.m., say so explicitly. An order written from a good “on” period describes someone who does not need the equipment.

Progression is expected but not automatic. Medicare covers what you need now, not what you may need later. When your needs change, that is a new order and a new conversation — not something the first prescription anticipates. Because the definition itself assumes equipment lasting at least three years, it is worth getting the right item the first time rather than the cheapest one.

For choosing between the devices themselves, our guide to choosing mobility and daily-living aids goes through the practical differences.

Repairs, replacements and what home health includes

Repairs. You are not tied to the shop that sold you the item. For a walker you own, Medicare says “you can use any Medicare-approved supplier to make repairs,” including replacement parts.

Equipment during home health care. If you qualify for Medicare home health, DME still runs through Part B at the usual 20% — the home health benefit itself is free to you, but the equipment is not. The home health agency has to tell you, verbally and in writing, if Medicare will not pay for something.

Medicare Advantage. If you are in a Part C plan, the copays and the supplier network are the plan’s, not Medicare’s. Check the plan’s DME rules before you order rather than after.

If you are refused

A denial is a first answer, not a final one. Medicare’s appeals system has five levels, and at each one “you’ll get a decision letter with instructions on how to move to the next level.”

Three things make an appeal more likely to work.

• Find out which of the conditions failed. Insufficient documentation is a different problem from a decision that the item is not medically necessary, and only the first is fixed by resubmitting.
• Get help. Your SHIP — the free state counseling service, at shiphelp.org — will work through an appeal with you at no cost, and is not connected to any insurer.
• Appoint a representative if you would rather a family member handled it. Medicare has a formal process for this.

If a case ever reaches federal district court, there is a minimum amount in dispute — $1,960 for 2026 — and claims can sometimes be combined to reach it. Almost nothing gets that far, but it tells you the process does not simply stop.

If this applies to you

This page explains Medicare’s national rules. Medicare Advantage plans, state Medicaid programs and individual suppliers apply their own terms on top. Confirm your coverage with 1-800-MEDICARE, your plan, or a SHIP counselor before you buy or rent anything.