Portable Oxygen Concentrators Through Medicare - A Comprehensive Guide to Coverage

If you're wondering how to get portable oxygen through Medicare, including a portable oxygen concentrator from a brand like Inogen, here's the short answer: Medicare Part B covers the rental of oxygen equipment, including portable equipment, when your doctor documents that you need it. In 2026 you'll typically pay the $283 Part B deductible and then 20% of the Medicare-approved monthly rental. The catch is that your supplier, not Medicare, decides which device you get. Here's who qualifies, how to get a portable concentrator, what it costs, and which brands to ask about.

Does Medicare Cover Portable Oxygen Concentrators?

Yes, as rental equipment. Medicare Part B treats oxygen as durable medical equipment (DME). When you qualify, Medicare pays a Medicare-enrolled supplier a monthly rental that covers your oxygen equipment, accessories, and servicing.

Portable oxygen is covered when your doctor orders it. Your prescription has to show you need oxygen while moving around, not only at rest at home.
The supplier chooses the device. Medicare covers "portable oxygen equipment," which a supplier can meet with a portable concentrator or with small tanks. You may be able to rent a portable concentrator if your supplier offers one that meets your prescription.
You rent, you don't buy. Buying a concentrator yourself from a retailer or manufacturer generally isn't reimbursed by Medicare.

Who Qualifies for Medicare-Covered Oxygen?

Medicare covers home oxygen when testing shows your blood oxygen is too low and your doctor documents the need. In general:

Testing: a blood gas test or pulse oximetry, ordered and reviewed by your treating clinician.
Common qualifying levels: an oxygen saturation of 88% or lower, or an arterial oxygen pressure of 55 mm Hg or lower, at rest, during sleep, or with exercise.
Borderline levels: a saturation of 89% (or pressure of 56 to 59 mm Hg) can qualify when you also have certain conditions, such as swelling from heart failure, pulmonary hypertension, or a high red blood cell count.
A detailed order: it should list your flow rate, when you use oxygen (at rest, with activity, during sleep), and the need for portable equipment.

Oxygen is often prescribed for COPD, pulmonary fibrosis, heart failure, and other lung conditions. If COPD is part of your picture, our guide to COPD inhalers and how to choose may help too.

How to Get a Portable Oxygen Concentrator Through Medicare

Talk with your doctor about your activity level and whether a portable concentrator fits your prescription. Ask specifically about pulse-dose versus continuous-flow needs.
Complete the qualifying tests, including a test during walking or exertion if portability is the goal.
Get a detailed written order that states your flow rate and the need for portable oxygen.
Find a Medicare-enrolled oxygen supplier that accepts assignment, and ask directly: "Do you provide portable oxygen concentrators, and which models?" If not, call others.
Test the device if you can, to confirm it keeps your oxygen level up while you walk, climb stairs, or sleep.
Ask about upgrades before delivery. If you want a model your supplier doesn't normally provide, they may ask you to sign an Advance Beneficiary Notice (ABN) and pay the difference.
Keep copies of your order, test results, and any ABN.

What Portable Oxygen Costs With Medicare

Deductible and coinsurance: after the 2026 Part B deductible of $283, you typically pay 20% of the Medicare-approved monthly rental. Medicare pays the rest.
The 36-month rental: you rent from your supplier for 36 months. The monthly payment covers the equipment, accessories, and services.
After 36 months: rental payments stop, but if you still need oxygen, your supplier must keep the equipment working and provide related supplies for up to 24 more months, for a total of 5 years. Concentrator users may owe coinsurance for maintenance visits about every 6 months during that time.
After 5 years: you can get new equipment, which starts a new 36-month rental period, or switch suppliers.
Medigap and Medicaid: a Medicare Supplement (Medigap) plan or Medicaid may pay some or all of your 20% share.
Medicare Advantage: plans must cover oxygen at least as well as Original Medicare but may require in-network suppliers, prior authorization, and different copays.

Buying a portable concentrator outright costs much more up front than your share of a Medicare rental, and the purchase generally isn't reimbursed. Some people buy a second unit for travel, but check with your supplier and doctor first.

Portable Oxygen Concentrator Brands to Ask About

Medicare doesn't guarantee a brand, but knowing the main options helps you ask your supplier the right questions:

Inogen: one of the best-known portable concentrator makers, with lightweight pulse-dose models in its Inogen One and Rove lines. Inogen also makes the Voxi stationary home concentrator.
CAIRE: makes the FreeStyle Comfort, a light pulse-dose unit, and the larger Eclipse line, which offers continuous flow.
O2 Concepts: the Oxlife Independence, a cart-based unit with both continuous-flow and pulse settings.
GCE: the Zen-O line, with higher pulse settings and some continuous-flow options.

If you've seen recommendations for the Philips Respironics SimplyGo, note that Philips Respironics said in 2024 that it won't return to selling portable and stationary oxygen concentrators in the U.S. Existing units can still be serviced, but suppliers generally aren't offering them new.

Pulse dose or continuous flow? Most small, lightweight concentrators deliver pulse-dose oxygen only. If your prescription calls for continuous flow, especially during sleep, you'll need a larger unit. Your prescription should drive the choice, not the weight alone.

Quick Answers

Can I buy an Inogen online and have Medicare pay for it?

Generally no. Medicare covers oxygen as a rental from an enrolled supplier, not as a purchase.

What if my supplier only offers tanks?

Suppliers can meet a portable oxygen need with tanks or a concentrator. If a concentrator matters to you, call other Medicare-enrolled suppliers in your area.

Can I fly with a Medicare-rented concentrator?

Many portable concentrators are FAA-approved for flights, but each airline has its own rules for batteries and advance notice. Ask your supplier about extra batteries and travel help well before your trip.

Does Medicare cover a backup?

Medicare expects a safe backup, often small tanks. A second concentrator usually isn't covered if another backup works.

Related Medicare Equipment Guides

Oxygen is just one kind of medical equipment Medicare helps with. See our guides to Medicare coverage for durable medical equipment, Medicare coverage for CPAP, Medicare and power chairs, and Medicare coverage for home health aides.

The Bottom Line

Medicare Part B covers portable oxygen as a rental when testing and your doctor's order show you need it. To get a portable concentrator, make sure your order specifies portable oxygen, find a Medicare-enrolled supplier that stocks concentrators, and settle any upgrade costs before delivery. In 2026, expect the $283 deductible and 20% of the monthly rental unless Medigap, Medicaid, or your plan covers more.

This article is general information, not medical advice, and isn't affiliated with Medicare or any manufacturer. Confirm coverage with your supplier, your plan, or 1-800-MEDICARE.