HHZ Respiratory Review

Medicare Advantage appeal for CPAP or oxygen (2026)

2 min read By HHZ Editorial Next review

In a Medicare Advantage plan, start by asking the plan for a reconsideration within 65 days of the denial notice. The plan has 30 days to decide a pre-service appeal, 60 days for a payment appeal, or 72 hours for a fast appeal. If it upholds the denial, it automatically sends the case to an Independent Review Entity (level 2). After that comes an ALJ hearing ($200 minimum in 2026, request within 60 days). Source: Medicare.gov, checked 14 October 2026.

Sources: Medicare.gov Appeals in Medicare health plans, checked 14 October 2026. General information, not legal advice. For Original Medicare, see appealing a Medicare DME denial.

The first two levels

StepWhat happensDeadline / timeline
Organization determinationYou, your representative or your provider asks the plan whether an item is coveredAsk the plan
Level 1: plan reconsiderationYou ask the plan to reconsider a denialFile within 65 days of the denial notice
Plan decisionStandard pre-service 30 days; payment 60 days; fast 72 hoursUp to 14-day extension in some cases
Level 2: Independent Review EntityAutomatic if the plan denies againSame 30 / 60 days / 72 hours
Level 3: OMHA (ALJ)You ask within 60 days of the IRE decision$200 minimum in 2026

What to include

  • Your name, address and Medicare Number
  • The items (for example a CPAP, mask resupply or oxygen concentrator), dates and reasons you’re appealing
  • Your representative’s details and proof, if you have one
  • Supporting information, such as a doctor’s note

Medicare.gov suggests asking your supplier for information that could strengthen your appeal. If your appeal is for something you haven’t received yet, your doctor can ask for the reconsideration for you.

Check the denial against Medicare’s rules

Under CMS rules, Medicare Advantage plans must follow Original Medicare’s coverage criteria. If the denial cites a requirement that isn’t in Medicare’s CPAP or oxygen rules, say so in your appeal (MA prior authorization rules).

Verdict

File within 65 days, ask for a fast appeal if waiting would harm your health, and remember that a second denial goes to independent review automatically.

Related: Medicare Advantage vs Original Medicare for DME, Medicare CPAP coverage, Medicare oxygen coverage.

Frequently asked questions

How long do I have to appeal a Medicare Advantage denial for CPAP or oxygen?
65 days from the date on your plan's initial denial notice, per Medicare.gov. If you miss it, you must give a reason for filing late.
How fast must my plan decide?
For a standard pre-service appeal, 30 days; a payment appeal, 60 days; a fast appeal, 72 hours. Plans can extend by up to 14 days in some cases and must tell you in writing.
Can I get a fast appeal?
Yes, if your plan decides, or your doctor tells it, that waiting could seriously jeopardize your life, health or ability to regain maximum function.
What happens if the plan says no again?
Medicare.gov says the plan automatically forwards its decision to an Independent Review Entity for level 2. You don't have to file it yourself.
What's the minimum for an ALJ hearing?
$200 in 2026, and you have 60 days from the IRE's decision to ask.

Medicare Advantage prior authorization for CPAP

Prior authorization for CPAP, oxygen and DME in Medicare Advantage vs Original Medicare: CMS-4201-F coverage-criteria limits, the 90-day transition, 2026 decision timeframes and denial reasons under CMS-0057-F, and the Original Medicare required list.

Medicare Advantage vs Original Medicare for DME

How Original Medicare and Medicare Advantage differ for durable medical equipment like CPAP and home oxygen: suppliers, prior authorization, costs, out-of-pocket limits, Medigap and travel, from Medicare.gov and CMS.

Medicare DME appeal: CPAP and oxygen step by step

How to appeal a denied Medicare claim for CPAP, oxygen or other durable medical equipment in Original Medicare: the 5 levels, deadlines, 2026 dollar thresholds, what to include and how long each step takes. From Medicare.gov.

Advance Beneficiary Notice (ABN) for CPAP and oxygen

What a Medicare Advance Beneficiary Notice of Non-coverage (ABN) means when a CPAP, oxygen or DME supplier gives you one: the 3 options, appeal rights, unassigned suppliers and when no ABN is needed. From Medicare.gov and CMS.