Medigap and Durable Medical Equipment Coverage: What Your Medicare Supplement Pays for Wheelchairs, Oxygen, and CPAP in 2026
Medigap and Durable Medical Equipment Coverage: What Your Medicare Supplement Pays for Wheelchairs, Oxygen, and CPAP in 2026
If you or a loved one needs a wheelchair, oxygen tank, CPAP machine, or hospital bed, the cost can be overwhelming. A power wheelchair can run $2,000 to $8,000. Home oxygen equipment adds up to hundreds of dollars per month. CPAP machines with supplies cost $500 to $3,000 over five years. For the millions of Medicare beneficiaries who rely on durable medical equipment (DME), understanding how Medicare and your Medigap plan work together to cover these costs isn’t just helpful — it’s essential.
⚡ Quick Answer
Medicare Part B covers 80% of the approved cost for durable medical equipment after you meet the $257 Part B deductible (2026). Your Medigap plan covers the remaining 20% coinsurance if you have Plan C, D, F, G, M, or N — leaving you with $0 out-of-pocket for covered DME items like wheelchairs, oxygen equipment, CPAP machines, and hospital beds. Plan K covers 50% of the coinsurance and Plan L covers 75%.
📌 Key Takeaways
- DME falls under Medicare Part B: After you meet the $257 annual Part B deductible (2026), Medicare pays 80% of the approved amount for wheelchairs, oxygen, CPAP, hospital beds, walkers, and other DME
- Most Medigap plans cover the 20% coinsurance in full: Plans C, D, F, G, M, and N all pay 100% of your DME coinsurance; Plan K pays 50% and Plan L pays 75%
- You must use a Medicare-enrolled DME supplier: Using a non-enrolled supplier means Medicare won't pay, and neither will your Medigap plan
- Medical necessity documentation is critical: Your doctor must provide a written order and clinical justification before you obtain DME — without it, claims are frequently denied
- DME is typically rented, not purchased outright: Medicare usually pays monthly rental fees for 13 months (for items like CPAP) or 36 months (for oxygen), after which you own the equipment
- The Competitive Bidding Program has been scaled back: Most beneficiaries can now use any Medicare-enrolled DME supplier in 2026, giving you more choices
What Counts as Durable Medical Equipment Under Medicare
Not every piece of health equipment qualifies as DME under Medicare rules. To be classified as DME, an item must meet all five of these criteria:
- Durable — It can withstand repeated use (not a disposable supply)
- Primarily for medical purposes — It serves a medical function, not primarily for comfort or convenience
- Not useful without an illness or injury — A healthy person would have no reason to use it
- Appropriate for home use — It’s designed or suited for use in your home
- Expected to last at least 3 years — It has a reasonable lifespan
Common DME Items Covered by Medicare Part B
Here’s a list of the most frequently prescribed DME items that Medicare covers:
- Wheelchairs (manual and power)
- Mobility scooters (POVs — Power Operated Vehicles)
- Oxygen equipment (concentrators, tanks, liquid systems)
- CPAP and BiPAP machines (with masks, tubing, and filters)
- Hospital beds (semi-electric and fully electric, with rails)
- Walkers and rollators (with or without wheels and seats)
- Canes and crutches (standard and quad canes)
- Patient lifts (Hoyer lifts and similar devices)
- Nebulizers (for breathing treatments)
- Blood glucose monitors and testing supplies
- Commodes (bedside and raised toilet seats with arms)
- TENS units (for pain management)
- Enteral nutrition pumps and supplies (feeding tubes)
- External infusion pumps (for IV medications at home)
- Pressure-reducing support surfaces (mattresses and overlays for pressure sores)
Items that are not considered DME and are generally not covered include things like air conditioners, humidifiers, grab bars, stair lifts, and hot tubs — even if a doctor recommends them for comfort or general wellness.
For more on how Medigap handles various types of medical equipment and supplies, see our complete guide to filing Medigap claims.
How Original Medicare Covers DME: The 80/20 Split
Durable medical equipment falls under Medicare Part B (outpatient coverage). Here’s how the payment structure works in 2026:
The DME Payment Structure
| Step | What Happens | Your Cost |
|---|---|---|
| 1. Part B Deductible | You pay the first $257 of Part B-covered services per year | $257 (2026) |
| 2. Medicare Pays 80% | Medicare pays 80% of the approved amount for DME | $0 |
| 3. Your 20% Coinsurance | You owe the remaining 20% | 20% of approved amount |
| 4. Medigap Covers the 20% | If you have a qualifying Medigap plan, it pays your 20% | $0 (with Plans C, D, F, G, M, N) |
Real-World Cost Examples
Let’s look at what you’d actually pay for common DME items — with and without Medigap coverage:
| DME Item | Medicare-Approved Cost | Your 20% Without Medigap | Your Cost With Plan G |
|---|---|---|---|
| Manual wheelchair | $1,500 | $300 | $0 |
| Power wheelchair | $5,000 | $1,000 | $0 |
| CPAP machine (13-month rental) | $1,200 | $240 | $0 |
| Oxygen concentrator (36-month rental) | $3,600 | $720 | $0 |
| Hospital bed (semi-electric, 13-month rental) | $1,800 | $360 | $0 |
| Rollator walker | $250 | $50 | $0 |
| Blood glucose monitor + 6 months of strips | $600 | $120 | $0 |
| Nebulizer + compressor | $300 | $60 | $0 |
These examples assume you’ve already met the $257 Part B deductible. If you haven’t, you pay that amount first before coinsurance kicks in.
For a deeper look at how Medigap plans handle the Part B deductible differently, check our Plan G vs Plan N comparison.
Which Medigap Plans Cover DME Coinsurance
Since DME is covered under Medicare Part B, the Medigap benefit that matters is Part B coinsurance coverage. Here’s how each standardized Medigap plan handles the 20% DME coinsurance:
Complete DME Coverage by Medigap Plan (2026)
| Medigap Plan | Part B Coinsurance for DME | Your DME Cost After Medicare | Notes |
|---|---|---|---|
| Plan A | ❌ None | 20% of approved amount | Basic plan — no DME coinsurance help |
| Plan B | ❌ None | 20% of approved amount | Adds Part A deductible only |
| Plan C | ✅ 100% | $0 | Also covers Part B deductible |
| Plan D | ✅ 100% | $0 | Does not cover Part B excess charges |
| Plan F | ✅ 100% | $0 | Most comprehensive — closed to new enrollees since 2020 |
| Plan G | ✅ 100% | $0 | Best plan for new enrollees — covers all DME coinsurance |
| Plan K | 🟡 50% | 10% of approved amount | Lower premiums, partial coverage |
| Plan L | 🟡 75% | 5% of approved amount | Moderate cost-sharing |
| Plan M | ✅ 100% | $0 | Covers DME fully; Part A deductible split 50% |
| Plan N | ✅ 100% | $0 | Small copays for doctor visits/ER, but DME covered fully |
Best Medigap Plans for DME Coverage
If you expect to need significant DME in the coming years, here are the top choices:
Plan G — The gold standard for new Medicare beneficiaries. It covers 100% of Part B coinsurance for all DME items, plus Part B excess charges (if your DME supplier charges more than the Medicare-approved amount). Plan G is available to everyone and is the most popular Medigap plan for 2026. Learn more about Plan G’s benefits in our high-deductible vs standard Plan G cost analysis.
Plan N — A lower-premium alternative that still covers DME coinsurance at 100%. You’ll pay up to $20 copays for doctor visits and $50 for ER visits, but DME is covered in full. For beneficiaries who rarely see the doctor but want full DME protection, Plan N is worth considering. See our Plan N copay break-even analysis to determine if it saves you money.
Plan K or Plan L — These cost-sharing plans have lower monthly premiums but only cover 50% or 75% of DME coinsurance. They make sense if you’re healthy and want to save on premiums while still having some DME protection. Both have annual out-of-pocket limits ($7,220 for Plan K, $3,610 for Plan L in 2026). For a detailed comparison, see our Plan K vs Plan L guide.
Specific Equipment Coverage Breakdown
Let’s examine how Medicare and Medigap handle the most common types of DME that seniors need.
Wheelchairs and Mobility Scooters
Medicare covers wheelchairs and scooters as DME when your doctor determines they are medically necessary for use within your home. This distinction matters — Medicare does not cover a wheelchair solely for use outside the home.
What’s covered:
- Manual wheelchairs — Covered when you need help moving around your home and cannot use a walker or cane safely
- Power wheelchairs — Covered when you cannot operate a manual wheelchair due to physical limitations and need one for mobility inside your home
- Power scooters (POVs) — Covered when you can sit, stand, and walk a few steps but cannot use a manual wheelchair and need the scooter for inside-the-home use
Cost breakdown (2026):
| Equipment | Typical Medicare-Approved Cost | Your 20% (No Medigap) | Your Cost (Plan G) |
|---|---|---|---|
| Standard manual wheelchair | $1,000–$1,800 | $200–$360 | $0 |
| Lightweight manual wheelchair | $1,500–$2,500 | $300–$500 | $0 |
| Power wheelchair | $4,000–$8,000 | $800–$1,600 | $0 |
| Power scooter (POV) | $3,000–$6,000 | $600–$1,200 | $0 |
Important notes for wheelchairs:
- Your doctor must complete a WOPD (Written Order Prior to Delivery) form and a detailed face-to-face mobility evaluation before you obtain the wheelchair
- You must use a Medicare-enrolled DME supplier
- Power wheelchairs require a more extensive evaluation, often including a physical therapist assessment
- Medicare may only cover the least costly type that meets your medical needs (e.g., if a manual wheelchair suffices, Medicare won’t approve a power chair)
Oxygen Equipment and Supplies
Oxygen therapy is one of the most commonly needed — and most expensive — categories of DME. Medicare Part B covers oxygen when you have a condition that causes hypoxemia (low blood oxygen), such as COPD, emphysema, severe asthma, pulmonary fibrosis, or heart failure.
What’s covered:
- Oxygen systems — Gas (tanks), liquid, or concentrator systems
- Oxygen concentrators — Stationary units for home use
- Portable oxygen systems — For use outside the home
- Oxygen delivery accessories — Tubing, masks, cannulas, and filters
- Oxygen contents — The actual oxygen gas or liquid refills
How oxygen payment works (unique to DME):
Medicare pays for oxygen equipment as a monthly rental for the first 36 months:
| Period | What Happens | Your Cost (With Plan G) |
|---|---|---|
| Months 1–36 | Medicare pays 80% of monthly rental; Medigap pays 20% | $0/month |
| Months 37–60 | Supplier must continue providing equipment at no charge | $0/month |
| After month 60 | You can choose to keep the equipment (supplier transfers title) or get new equipment starting a new 36-month rental | Varies |
Without Medigap, your 20% coinsurance on oxygen rental could run $20 to $80 per month depending on the type of system — adding up to $720 to $2,880 over the 36-month rental period. With Plan G or another comprehensive Medigap plan, your cost is $0.
CPAP and BiPAP Machines
Continuous Positive Airway Pressure (CPAP) and Bilevel Positive Airway Pressure (BiPAP) machines are covered as DME when prescribed for obstructive sleep apnea (OSA). This is one of the most common DME items for Medicare beneficiaries.
Coverage requirements:
- You must have a sleep study (polysomnography) confirming obstructive sleep apnea
- Your AHI (Apnea-Hypopnea Index) must be 5 or higher
- Your doctor must prescribe CPAP/BiPAP therapy
- You must demonstrate compliance — using the machine at least 4 hours per night on 70% of nights during a 90-day trial period
What’s covered:
- CPAP or BiPAP machine (rented for 13 months, then you own it)
- Masks and headgear (replaced every 3 months)
- Tubing (replaced monthly)
- Filters (replaced monthly or as needed)
- Humidifiers (built into most modern CPAP units)
Cost breakdown (2026):
| Item | Medicare-Approved Cost | Your 20% (No Medigap) | Your Cost (Plan G) |
|---|---|---|---|
| CPAP machine (13-month rental) | $800–$1,500 | $160–$300 | $0 |
| Replacement mask (every 3 months) | $100–$200 | $20–$40 | $0 |
| Tubing (monthly) | $15–$30 | $3–$6 | $0 |
| Filters (monthly) | $5–$15 | $1–$3 | $0 |
The compliance requirement is critical: If Medicare determines you’re not using the CPAP machine enough during the first 90 days, they will stop paying for it. Most modern CPAP machines have built-in data cards or wireless reporting that automatically tracks usage.
Hospital Beds
Medicare covers hospital beds as DME when you need positioning that a regular bed cannot provide — for conditions like severe arthritis, congestive heart failure, neurological conditions, or recovery from surgery.
What’s covered:
- Semi-electric hospital beds (most commonly covered) — Head and foot sections adjust electrically
- Fully electric hospital beds — Covered when you cannot operate a hand crank
- Manual hospital beds — Rarely prescribed; Medicare may only cover this if a semi-electric is not medically necessary
- Bed rails — Covered when medically necessary
- Pressure-reducing mattresses — Covered when prescribed for pressure ulcer prevention/treatment
Cost breakdown (2026):
| Equipment | Medicare-Approved Cost (13-month rental) | Your 20% (No Medigap) | Your Cost (Plan G) |
|---|---|---|---|
| Semi-electric hospital bed | $1,000–$2,000 | $200–$400 | $0 |
| Fully electric hospital bed | $1,500–$3,000 | $300–$600 | $0 |
| Pressure-reducing mattress | $300–$800 | $60–$160 | $0 |
Walkers, Canes, and Crutches
These basic mobility aids are among the most frequently prescribed DME items and are generally straightforward to get approved.
What’s covered:
- Standard walkers (without wheels)
- Rollator walkers (with wheels, brakes, and often a seat)
- Standard canes (single-point)
- Quad canes (four-point base for stability)
- Crutches (axillary or forearm)
- Knee scooters (for lower leg/foot injuries)
Cost breakdown (2026):
| Equipment | Medicare-Approved Cost | Your 20% (No Medigap) | Your Cost (Plan G) |
|---|---|---|---|
| Standard walker | $80–$150 | $16–$30 | $0 |
| Rollator walker | $150–$300 | $30–$60 | $0 |
| Quad cane | $40–$80 | $8–$16 | $0 |
| Crutches | $40–$100 | $8–$20 | $0 |
| Knee scooter | $200–$500 | $40–$100 | $0 |
Diabetic Supplies (DME Component)
Diabetes management involves two distinct coverage pathways under Medicare. Understanding which items fall under Part B (DME) versus Part D (prescription drugs) is essential.
Covered under Part B as DME:
- Blood glucose monitors — The devices themselves
- Test strips — For use with your glucose monitor
- Lancets and lancet devices
- Continuous glucose monitors (CGMs) — Covered as DME since 2023 when prescribed by your doctor
- Therapeutic shoes and inserts — For diabetics with foot complications (one pair per calendar year)
Covered under Part D (not DME):
- Insulin (vials, pens) — Prescription drug benefit
- Insulin supplies (syringes, needles, alcohol swabs) — Part D
- Insulin pumps — Part D (the pump itself may be Part B in some cases)
Important: Your Medigap plan covers the Part B coinsurance for glucose monitors, test strips, and CGMs, but does not cover insulin or Part D supplies. For insulin costs, you need a Medicare Part D prescription drug plan.
For help understanding how your drug coverage interacts with Medigap, see our Medigap prescription drug coverage guide.
How the Competitive Bidding Program Affects DME Costs in 2026
The Medicare Durable Medical Equipment, Prosthetics, Orthotics, and Supplies (DMEPOS) Competitive Bidding Program has undergone significant changes in recent years. Here’s what you need to know in 2026:
Background
The Competitive Bidding Program was originally designed to reduce Medicare spending on DME by having suppliers bid for contracts in certain metropolitan areas. Only contract suppliers could provide certain DME items to Medicare beneficiaries in those areas.
Current Status in 2026
As of 2026, the Competitive Bidding Program has been substantially reformed:
- The program has been scaled back to a limited number of product categories in select regions
- Most beneficiaries can now use any Medicare-enrolled DME supplier — the strict contract-only restrictions have been eased
- A lead item bidding approach is being tested in some areas, where bids are based on the most commonly purchased item in a category
- Rural areas were largely exempted from competitive bidding and continue to use standard fee schedules
What This Means for You
- More supplier choice — In most of the country, you can now shop around for a Medicare-enrolled DME supplier that offers good service and product selection
- Standard Medicare pricing — Prices are set by the Medicare fee schedule in your area, so the approved amount should be consistent regardless of which supplier you use
- Your Medigap coverage remains the same — Regardless of competitive bidding changes, your Medigap plan still covers the 20% coinsurance for covered DME
Tip: Always confirm that your DME supplier is Medicare-enrolled by asking directly or calling 1-800-MEDICARE. Using a non-enrolled supplier means you pay 100% of the cost.
Step-by-Step: Getting DME Approved With Your Medigap Plan
Follow this process to ensure your DME is covered by both Medicare and your Medigap plan:
Step 1: Get a Prescription and Written Order
Your treating doctor must provide a written order (also called a prescription or WOPD — Written Order Prior to Delivery) for the DME item. For certain items like power wheelchairs and scooters, the doctor must conduct a face-to-face examination and document:
- Your medical condition requiring DME
- Why the equipment is medically necessary
- Why lesser alternatives (like a cane instead of a walker) are not sufficient
- How the equipment will be used in your home
Step 2: Verify Your DME Supplier Is Medicare-Enrolled
Before you order anything, confirm the supplier is enrolled in Medicare. You can:
- Call 1-800-MEDICARE (1-800-633-4227)
- Visit medicare.gov/supplier
- Ask the supplier directly for their Medicare supplier number
Using a non-participating supplier who doesn’t accept Medicare assignment can result in higher costs (up to 15% excess charges). While Medigap Plan G and Plan F cover excess charges, it’s simpler to use a participating supplier.
Step 3: The Supplier Files the Medicare Claim
Your Medicare-enrolled DME supplier files the claim directly with Medicare. You should not need to file claims yourself. The supplier:
- Submits the claim to Medicare
- Medicare pays its 80% directly to the supplier
- Medicare automatically forwards the claim to your Medigap insurer (cross-claim processing)
- Your Medigap plan pays the 20% coinsurance to the supplier
This process is called coordination of benefits and happens automatically in most cases. For more details on how claims flow between Medicare and Medigap, see our step-by-step Medigap claims guide.
Step 4: Confirm Coverage Before Delivery
Before the DME is delivered, ask your supplier:
- “Has Medicare approved this item?”
- “What is the Medicare-approved amount?”
- “Will you accept Medicare assignment?” (meaning they accept the Medicare-approved amount as payment in full)
- “Do you have my Medigap policy information on file?”
Step 5: Track Your Claims
After receiving your DME, monitor your:
- Medicare Summary Notice (MSN) — Arrives every 3 months and shows what Medicare paid
- Medigap Explanation of Benefits (EOB) — Shows what your supplement paid
Compare the two documents to ensure both Medicare and Medigap paid their portions correctly. If you see a balance remaining, contact your Medigap insurer promptly.
Step 6: Handle Maintenance and Replacements
Medicare covers reasonable maintenance and repairs for DME you own or are renting. This includes:
- Servicing and repairs — When the equipment breaks through normal use
- Replacement parts — Worn-out components like wheelchair tires or CPAP filters
- Replacement equipment — When the item is beyond repair (requires new doctor’s order)
Your Medigap plan covers its portion of maintenance and repair costs the same way it covers the original DME purchase or rental.
Common DME Claim Denials and How to Appeal
DME claims have a higher denial rate than many other Medicare claims. Understanding the most common denial reasons helps you avoid them — or fight back when they occur.
Top Reasons DME Claims Are Denied
- Insufficient documentation of medical necessity — The doctor’s order doesn’t provide enough detail about why you need the specific equipment
- Lack of a face-to-face examination — For items requiring an in-person evaluation (wheelchairs, scooters, hospital beds)
- Using a non-Medicare-enrolled supplier — If the supplier isn’t enrolled, Medicare won’t pay
- The item is not considered DME — Equipment that doesn’t meet the five DME criteria (durable, medical purpose, not useful without illness, home use, 3+ year lifespan)
- Duplicate claims — You already received similar equipment within a reasonable timeframe
- Failure to meet compliance requirements — Particularly for CPAP machines (not using it enough during the trial period)
- Upgrade without justification — Requesting a more expensive model than medically necessary
How to Appeal a DME Denial
If your DME claim is denied, don’t give up. Medicare’s appeals process has multiple levels, and a significant percentage of denials are overturned:
Level 1: Redetermination
- File within 120 days of the denial date on your Medicare Summary Notice
- Include a letter from your doctor explaining medical necessity
- Submit additional clinical documentation (test results, exam notes, sleep study results)
- Include a copy of the written order and any supplier documentation
- Mail to the address listed on your MSN
Level 2: Qualified Independent Contractor (QIC) Review
- If the redetermination is denied, file within 180 days
- The QIC is an independent reviewer, not affiliated with Medicare
- Include any new or additional documentation not submitted previously
Level 3: Administrative Law Judge (ALJ) Hearing
- File within 60 days of the QIC decision
- The amount in controversy must be at least $180 (2026 threshold)
- You can present your case in person, by phone, or by video
Level 4: Medicare Appeals Council Review
- File within 60 days of the ALJ decision
- The Council can uphold, modify, or reverse the ALJ decision
Level 5: Federal Court Review
- Your final option if all previous levels fail
- The amount in controversy must meet the federal court threshold
Key Tip: About 50% of DME appeals are overturned when proper documentation is submitted. The most effective thing you can do is get a detailed letter from your doctor explaining exactly why you need the equipment, including specific clinical findings. Don’t just resubmit the same paperwork — add new, specific evidence.
For more information about navigating the claims process, our Medigap claim filing guide walks through the complete process.
Special Considerations for DME in 2026
Rental vs. Purchase
Most DME items are provided through a capped rental arrangement:
- 13-month rental — CPAP machines, hospital beds, and similar items are rented monthly for up to 13 months, after which the supplier transfers ownership to you
- 36-month rental — Oxygen equipment is rented for 36 months, followed by 24 months of continued supply at no additional charge
- Direct purchase — Some inexpensive items (canes, walkers, commodes) are purchased outright
During the rental period, Medicare pays 80% of the monthly rental fee and your Medigap plan covers 20%. After the rental period ends and you own the equipment, Medicare still covers reasonable maintenance and repairs.
Upgrades and Advanced Beneficiary Notices
If you want a more expensive model than what Medicare will approve (for example, a luxury power wheelchair with features beyond basic medical necessity), the supplier should give you an Advanced Beneficiary Notice of Noncoverage (ABN) before you receive the item. The ABN tells you:
- What Medicare is expected to cover (the basic item)
- What you’ll pay out-of-pocket (the cost difference for the upgrade)
- That you’re financially responsible if Medicare denies the upgrade
You can choose to accept the upgrade and pay the difference or select the standard model that Medicare covers.
Out-of-Area and Travel Considerations
Your DME coverage under Medigap works nationwide. If you travel within the United States, you can obtain DME services from any Medicare-enrolled supplier. For foreign travel, Medigap plans with foreign travel emergency coverage (Plans C, D, F, G, M, N) provide emergency coverage but generally do not cover DME obtained outside the US. See our foreign travel emergency coverage guide for details on what Medigap covers abroad.
Choosing the Right Medigap Plan for DME Protection
If you anticipate needing durable medical equipment — and most Medicare beneficiaries eventually will — here’s how to think about Medigap plan selection:
High DME Needs: Plan G or Plan N
For beneficiaries who already use DME or have conditions that are likely to require it (COPD, severe arthritis, diabetes, sleep apnea, mobility limitations), Plan G or Plan N are the strongest choices:
- Both cover 100% of Part B DME coinsurance
- Plan G also covers Part B excess charges (if a supplier charges above Medicare-approved rates)
- Plan N has lower premiums but adds small copays for doctor visits
- Neither plan is closed to new enrollees (unlike Plan F)
Moderate DME Needs: Plan L
If you’re generally healthy but want protection against unexpected DME costs, Plan L covers 75% of the 20% coinsurance and has an annual out-of-pocket limit of $3,610 (2026). After you hit that limit, the plan pays 100% of covered services for the rest of the year.
Budget-Conscious: Plan K
Plan K covers 50% of DME coinsurance with an out-of-pocket maximum of $7,220 (2026). Premiums are significantly lower than Plan G. This works if you can absorb some DME costs but want protection against catastrophic expenses.
To compare all plans side by side, use our Medicare Supplement plan comparison tool.
Frequently Asked Questions About Medigap and DME Coverage
Does Medigap cover the 20% coinsurance for durable medical equipment like wheelchairs and oxygen?
Yes. Most Medigap plans cover the 20% Medicare Part B coinsurance for DME. Plans C, D, F, G, M, and N cover 100% of the coinsurance. Plan K covers 50% and Plan L covers 75%. Only Plans A and B provide no Part B coinsurance coverage for DME.
Does Medicare cover CPAP machines, and does Medigap pay the remaining 20%?
Medicare Part B covers CPAP machines and supplies (masks, tubing, filters) as DME when prescribed for obstructive sleep apnea, paying 80% of the Medicare-approved amount after you meet the Part B deductible ($257 in 2026). Medigap Plans C, D, F, G, M, and N cover the remaining 20% coinsurance, leaving you with $0 out of pocket.
How do I get a wheelchair approved through Medicare and my Medigap plan?
Your doctor must write a detailed prescription and complete a WOPD (Written Order Prior to Delivery) form explaining why the wheelchair is medically necessary. You must use a Medicare-contracted DME supplier. Medicare pays 80%, and your Medigap plan covers the remaining 20% if you have a plan that covers Part B coinsurance (Plans C, D, F, G, M, or N).
Is oxygen equipment covered by Medigap plans?
Medicare Part B covers oxygen equipment, tanks, and supplies as DME when your doctor certifies a medical need (such as severe COPD or hypoxemia). Medigap plans that cover Part B coinsurance (C, D, F, G, M, N) pay the 20% that Medicare does not. You also pay a monthly rental fee for the first 36 months, after which the supplier must provide equipment for an additional 24 months at no charge.
What is the Medicare Competitive Bidding Program for DME, and does it affect my costs in 2026?
The Competitive Bidding Program required Medicare beneficiaries to use specific contract suppliers for certain DME items in select areas. As of 2026, the program has been largely phased out and replaced with a lead item bidding approach in limited regions. Most beneficiaries now purchase DME from any Medicare-enrolled supplier, which expands your options and keeps costs at standard Medicare-approved rates.
Can I buy any brand or model of DME, or does Medicare restrict my choices?
Medicare only covers DME that is medically necessary and prescribed by your doctor. You must purchase from a Medicare-enrolled supplier. If you choose a more expensive model than what Medicare considers medically necessary (for example, a power wheelchair when a manual one is prescribed), you pay the difference. Medicare bases payment on the least costly item that meets your medical needs.
Does Medigap cover diabetic testing supplies classified as DME?
Medicare Part B covers blood glucose monitors, test strips, and lancets as DME when prescribed by a doctor. Medigap plans that cover Part B coinsurance pay the 20% coinsurance for these items. However, insulin pumps and insulin are covered under Medicare Part D (prescription drug plans), not Part B, so Medigap does not cover insulin costs.
What should I do if my DME claim is denied by Medicare or my Medigap plan?
First, review the denial reason on your Medicare Summary Notice. Common reasons include insufficient documentation of medical necessity or using a non-enrolled supplier. Ask your doctor to submit additional documentation and request a redetermination within 120 days. If still denied, escalate to a Qualified Independent Contractor (QIC) review. About 50% of DME appeals are overturned when proper documentation is provided.
Estimate Your Medigap Costs and Coverage
Durable medical equipment can be a major expense, but the right Medigap plan eliminates your 20% coinsurance exposure entirely. Whether you’re shopping for your first Medicare Supplement plan or considering a switch, our tools can help you find the best fit for your needs and budget.
Use our Medicare Supplement Penalty Calculator to see how much you could save by enrolling during your Medigap Open Enrollment Period, or compare plans side by side with our Plan Cost Estimator to find the right balance of premiums and DME coverage.
If you’re new to Medicare and want to avoid common enrollment mistakes that could leave you without DME coverage, check our enrollment mistakes guide before you sign up.