Home oxygen therapy is one of Medicare's most commonly used DME benefits. If your doctor has prescribed supplemental oxygen, here's what Medicare covers.
Who Qualifies for Medicare Home Oxygen?
Medicare covers home oxygen therapy when you have a diagnosed condition causing chronic hypoxemia (low blood oxygen). Qualifying conditions include COPD, pulmonary fibrosis, and heart failure with hypoxemia.
Your doctor must document that your blood oxygen level is at or below specific thresholds — typically oxygen saturation at or below 88% at rest.
Types of Home Oxygen Equipment Covered
- Stationary oxygen concentrator — plugs into wall; most common for home use
- Portable oxygen concentrator (POC) — battery-powered; allows mobility outside home
- Liquid oxygen system — higher flow rates for patients with elevated oxygen needs
- Oxygen cylinders/tanks — used for backup or portable delivery
The 36-Month Rental Rule
Home oxygen uses a special rental structure. Medicare rents equipment for 36 months. After 36 months, Medicare's rental payments stop — but the supplier is legally obligated to continue providing the equipment and services at no additional charge for as long as you need it.
What Medicare Pays
Medicare pays 80% of the approved monthly rental amount, plus equipment maintenance. You pay 20% coinsurance each month during the 36-month rental period.
Choosing a Home Oxygen Supplier
Because you'll work with your supplier for at least 36 months, choose carefully. Key questions:
- Do you offer 24/7 emergency backup service?
- How quickly can you respond if my concentrator fails?
- Do you provide portable oxygen options for travel?
- Do you bill Medicare directly and accept assignment?
Search DMEHelper to find Medicare-enrolled home oxygen suppliers in your area.