DMEPOS stands for Durable Medical Equipment, Prosthetic Devices, Prosthetics, Orthotics, and Supplies. It’s a Medicare term that groups together a wide range of medically necessary items covered under Part B, from wheelchairs and hospital beds to artificial limbs and surgical dressings. If you’ve encountered this acronym on a bill, an insurance document, or while researching Medicare benefits, here’s what each piece means and how coverage actually works.
The Six Categories Within DMEPOS
DMEPOS isn’t a single type of equipment. It’s an umbrella covering six distinct benefit categories, each with its own rules:
- Durable Medical Equipment (DME): Hospital beds, wheelchairs, ventilators, oxygen equipment, and similar reusable devices.
- Prosthetics: Devices that replace a missing body part, specifically artificial legs, arms, and eyes.
- Orthotics: Braces for the leg, arm, back, and neck. These are rigid or semi-rigid devices that support a weak or deformed body part or restrict motion in an injured area. Medicare cannot pay for an orthotic that isn’t a brace for one of those four body regions.
- Prosthetic Devices: Items that replace the function of an internal organ, such as ostomy bags.
- Therapeutic Shoes: Extra-depth shoes with inserts, or custom-molded shoes with inserts, specifically for people with diabetes.
- Lymphedema Compression Treatment Items: Gradient compression garments and related items for managing lymphedema. This is one of the newer benefit categories.
Surgical dressings, splints, casts, and devices used for fractures and dislocations also fall under DMEPOS coverage.
What Makes Equipment “Durable”
The DME portion of DMEPOS has a specific five-part test. For equipment to qualify, it must be durable enough to withstand repeated use, used for a medical reason, typically only useful to someone who is sick or injured, used in your home, and expected to last at least three years.
That last requirement is key. If something is disposable or short-lived, it falls under the “supplies” category instead. And items that don’t contribute meaningfully to treating an illness or injury are excluded entirely. Personal comfort items like massage devices don’t qualify. Neither do environmental control products like room heaters, humidifiers, dehumidifiers, or electric air cleaners, even if they seem health-related.
What You Pay for DMEPOS Items
Medicare Part B covers 80% of the approved amount for DMEPOS items. You’re responsible for the remaining 20%, plus any unmet Part B deductible. The approved amount is either the supplier’s actual charge or the fee schedule amount, whichever is lower. So if a supplier charges more than what Medicare’s fee schedule allows, your 20% is based on the fee schedule price, not the higher charge.
For items purchased through Medicare’s Competitive Bidding Program, the math works the same way: Medicare pays 80% of the competitively determined price, and you pay 20% plus any remaining deductible. The bidding program generally results in lower prices, which means lower copays for you.
How DMEPOS Gets Prescribed
You can’t simply buy DMEPOS items and expect Medicare to reimburse you. Your doctor or treating practitioner needs to write a Standard Written Order that includes your name or Medicare ID number, a description of the item, the quantity needed, the practitioner’s name or provider ID, the date, and the practitioner’s signature. Every DMEPOS item uses this same standardized set of requirements.
Some items also require a face-to-face encounter with your doctor before the order is written. This is Medicare’s way of confirming the item is medically necessary for your specific situation.
How Suppliers Get Approved
Not every medical supply company can bill Medicare for DMEPOS. Suppliers must clear three hurdles: they need accreditation from a CMS-approved organization, they must formally enroll in the Medicare program as a DMEPOS supplier, and they must post a surety bond. The accreditation process verifies that the business meets federal quality standards, and the accrediting organization conducts periodic, unannounced site visits to confirm ongoing compliance.
This matters to you as a patient because using a non-enrolled or non-accredited supplier could mean Medicare won’t cover the cost. Always confirm that a supplier is Medicare-enrolled before purchasing or renting equipment.
The Competitive Bidding Program
Medicare uses a Competitive Bidding Program to set prices for certain DMEPOS items in specific geographic areas. Suppliers submit bids, and CMS awards contracts to those offering quality items at competitive prices. In areas where bidding contracts are active, you generally need to get your equipment from a contract supplier for Medicare to cover it.
There are protections built in. If your doctor prescribes a specific brand or delivery method to avoid a negative medical outcome, contract suppliers are required to either provide that exact item, help you find another contract supplier who can, or work with your doctor on an acceptable alternative. If your doctor determines no alternative will work, the supplier must furnish the prescribed item.
The next round of competitive bidding contracts is targeted to take effect no later than January 1, 2028. When new contracts begin, there’s a six-month transition period for patients to switch from their current non-contract supplier to a contract supplier. During the first three months of a new contract period, if your old supplier doesn’t transfer your medical documentation, the new supplier has six months to get fresh orders from your doctor.
A nationwide version of the bidding program also covers items typically shipped by mail, like diabetic testing supplies. For those items, only contract suppliers can bill Medicare, regardless of where you live.
Fee Schedule Updates for 2026
DMEPOS reimbursement rates aren’t fixed. They’re adjusted annually based on inflation and other factors. For 2026, most DMEPOS fee schedule amounts are increasing by 2%, calculated by taking the 2.7% rise in the Consumer Price Index and subtracting a 0.7% productivity adjustment. Lymphedema compression items are getting a slightly larger bump of 2.7%, and mail-order diabetic testing supplies are seeing a 2.8% increase. The maintenance and servicing fee for oxygen concentrators and transfilling equipment will be $89.58 for 2026.
These adjustments affect what Medicare pays suppliers, which in turn affects your 20% share. Higher fee schedule amounts mean slightly higher copays, but they also help ensure suppliers can continue offering equipment at adequate quality levels.