Medicare Part B can cover home oxygen equipment and supplies when clinical and equipment requirements are met. Coverage does not mean you can buy any portable concentrator online and receive reimbursement. Begin with your treating professional and a Medicare-enrolled supplier.

Confirm medical need and the equipment order
Your clinician documents the condition, testing and need for oxygen. National coverage criteria and, where applicable, contractor rules determine eligibility. A diagnosis alone is not a substitute for the required evaluation.
The supplier should provide equipment suited to the prescribed need, including mobility requirements. A portable system is not automatically a particular brand or a lightweight concentrator. Ask which equipment fulfills your order before agreeing to delivery.
Understand the rental period
| Stage | What to clarify |
|---|---|
| First 36 months | Monthly rental includes equipment and required related supplies and services. |
| After 36 months, through the five-year period | Equipment rental payments stop, but supplier responsibilities continue while needed; some contents or servicing charges may remain. |
| Continued need after five years | Arrange replacement equipment and a new rental cycle under Medicare rules. |
Under Original Medicare, you generally pay 20% of the approved amount after the Part B deductible. Confirm assignment and any expected additional charges. The end of equipment rental payments does not mean every subsequent service is without cost.
Plan for travel or a move
Tell the supplier early about an extended trip or relocation. Responsibilities differ before and after the initial rental period. Medicare does not pay for oxygen related to air travel, and the supplier is not required to provide an airline-approved portable concentrator.
Keep a practical equipment record
- Order, supplier contact and service instructions.
- Rental start date and itemized estimates.
- Arrangements for refills, maintenance and urgent equipment problems.
- Written notices if the supplier will stop service.
For Medicare Advantage, check the plan’s supplier network, authorization and costs. If equipment no longer meets your needs, contact your clinician and supplier; do not change prescribed settings based on an insurance article.
Related coverage questions
- Medicare Coverage for Walkers and Wheelchairs: Eligibility, Costs, and How It Works
- Medicare Hospital Beds at Home: Orders, Suppliers and Costs
- Medicare Home Health Care: Services, Eligibility and Costs