Your Medicare Advantage Plan Said No to Rehab. 95 Out of 100 People Who Appealed Got a Yes.

Only 18 in 100 denied nursing-home stays ever get appealed. Here are the three deadlines that decide whether you’re one of the 95.

Federal inspectors looked at what happened when Medicare Advantage plans denied a skilled nursing facility stay and the patient pushed back: the plan reversed itself 95% of the time (HHS Office of Inspector General, 2026, summarized by KFF, July 6, 2026). The problem is that only 18% of those denials were ever appealed. The other 82 out of 100 families took the “no” as final. In traditional Medicare, the average payment for a skilled nursing stay was about $16,000 in 2023 (MedPAC, via KFF, July 6, 2026). That’s the size of the bill riding on a phone call most people never make.

What the inspectors found

The OIG reviewed June 2024 requests at the largest Medicare Advantage insurers. Plans denied 12% of skilled nursing facility (SNF) requests, 54% of inpatient rehabilitation facility requests, and 65% of long-term care hospital requests. Across all services, the Medicare Advantage denial rate is under 8% (KFF, July 6, 2026). The care you need most after a hospital stay is the care most likely to get a “no.”

Appeals worked far better than the initial denial rates suggest. Beyond the 95% reversal for SNF stays, 43% of rehab-hospital denials and 36% of long-term-hospital denials were overturned. Even a denial that gets reversed costs something: the initial “no” delayed care by five to six days on average (KFF, July 6, 2026).

This isn’t a rare situation. More than half of all Medicare beneficiaries are now in Medicare Advantage, insurers made nearly 53 million prior authorization decisions in 2024, and 95% of enrollees are in a plan that requires prior authorization for a skilled nursing stay (KFF, July 6, 2026). Newer 2025 data, posted by insurers for the first time this spring, shows the pattern holds: 12% of standard requests denied, 67% of appealed denials overturned (KFF, Aug. 13, 2026).

What this means for your wallet

A denial letter is the opening offer, not the verdict. Here is the process, straight from Medicare.gov (accessed Sept. 4, 2026), with the deadlines that matter:

• You have 65 days. A Level 1 appeal, called a “reconsideration,” must be filed within 65 days of the date on the denial notice. Your doctor can file it for you. Include your Medicare number, the service and dates, why you disagree, and anything from the doctor that strengthens the case.
• Ask for the fast track. A standard pre-service appeal gets a decision within 30 days. If your doctor tells the plan that waiting could seriously harm your health or your ability to recover, the plan must decide within 72 hours. After a hospital stay, ask your doctor to request the expedited appeal.
• Losing Level 1 isn’t the end. If the plan upholds its denial, it must automatically send your case to an Independent Review Entity that works for Medicare, not the plan. You don’t have to file anything. Level 3, a hearing before an administrative law judge, requires the amount in dispute to be at least $200 in 2026.

The catch: care that’s already started has a different clock

If you’re already in the nursing facility and the plan says coverage ends Friday, the 65-day rule doesn’t help you. This is a “fast appeal,” and it runs on hours. The facility must hand you a “Notice of Medicare Non-Coverage” at least two days before coverage ends. You or a family member must call the Quality Improvement Organization listed on that notice by noon the day before the end date. The QIO, an independent reviewer, decides by close of business the day after it gets your records. Meet that noon deadline and you owe nothing for care before the date on the notice, whichever way it goes (Medicare.gov, “Fast appeals,” accessed Sept. 4, 2026). Miss it and you can still ask the plan for a fast reconsideration, but the days in between may be on you. If nobody hands you that notice, ask for it; the rules require it.

One more thing: Original Medicare isn’t entirely prior-authorization-free anymore: a federal pilot called WISeR began Jan. 1, 2026, testing prior authorization for a limited list of services in Arizona, New Jersey, Ohio, Oklahoma, Texas, and Washington, running through 2031 (KFF, July 6, 2026; CMS Innovation Center, WISeR model page). If you live in one of those states, the appeal habit is worth building either way.

The takeaway

Keep the denial letter, circle the date, and count 65 days. Ask the doctor for the expedited appeal. If care is already underway, find the noon deadline on the notice and call the QIO before it passes. Four in five families never make that call; the ones who do win 19 times out of 20. And when the fall enrollment window opens Oct. 15, your plan’s Annual Notice of Change is a fair place to ask how it handled you this year.

This is information, not medical, legal, or financial advice. Talk to your doctor, your State Health Insurance Assistance Program (SHIP), or a licensed professional about your situation. Senior Savers is independent and not affiliated with Medicare, CMS, or any insurer. This post contains no affiliate links.

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