Guides / After a hospital stay

How long Medicare covers rehab

Up to 100 days of skilled nursing, with rules that decide whether you get any of them. Here's how it works, what it costs, and what to line up before it stops.

9 min read · Updated October 2026

100days, at most

How it went for me

When my mom went into skilled nursing, Medicare covered it. Until it didn't. Nobody walked us through the rules, and when I asked how long she'd be there, the nurses said "until she gets better." When her coverage ran out, they moved her to a different floor. It was heartbreaking. We moved fast to get her into the senior community where she lives today.

What I wish someone had told me on day one: how long her care would likely last, what Medicare would and wouldn't pay, and what happens the day it stops. That's what this guide is.

Jan, founder

If you only do one thing

Before your parent leaves the hospital, ask:

“Is she admitted as an inpatient, or here under observation?”

It sounds like paperwork, but it decides whether Medicare pays for rehab at all. Time spent "under observation" doesn't count toward the 3-day inpatient stay Medicare requires, even if your parent is in a hospital bed the whole time (Medicare.gov).

The rules, in plain numbers

This is how it works with Original Medicare. (Medicare Advantage is different, see below.)

To qualify, all of these have to be true (Medicare.gov):

  • A hospital stay of at least 3 days in a row as an admitted inpatient. The day they're admitted counts. The day they leave doesn't. Observation and ER time don't count.
  • They go to the skilled nursing facility soon after, generally within 30 days.
  • A doctor says they need daily skilled care, like nursing or therapy.
  • The care is for something treated in the hospital, or something that came up during rehab. And they have Part A, with skilled nursing days left in this benefit period.

What it costs in 2026 (Medicare.gov):

Days 1 to 20$0 per dayThe $1,736 Part A deductible is paid once per benefit period, usually already paid for the hospital stay.
Days 21 to 100$217 per day
Day 101 and upEverything
80 days x $217 =$17,360What days 21 to 100 alone cost if your parent uses all 100 days.

The math nobody told us: if your parent uses all 100 days, days 21 to 100 alone come to 80 x $217 = $17,360. After day 100, you're paying the full rate. The national median for a semi-private nursing home room was about $9,277 a month in 2024, roughly $305 a day (Genworth and CareScout).

100 days is a maximum, not a promise. Medicare pays only while your parent needs daily skilled care. Coverage can end well before day 100.

The clock can reset, with a catch. A "benefit period" ends once your parent has gone 60 days in a row without inpatient hospital or skilled nursing care. After that, a new hospital stay starts a new benefit period with a fresh 100 days. But they'll need a new 3-day inpatient stay to use them, and the Part A deductible applies again (Medicare & You 2026, Medicare Interactive).

When coverage ends early, and how to push back

If the facility decides Medicare should stop paying, they have to give your parent a written Notice of Medicare Non-Coverage at least 2 days before coverage ends (Medicare.gov). Ask to be told the moment one is issued. If you're not the one at the bedside, it's easy to miss.

If you think it's too soon, you can ask for a fast appeal:

  1. 1Call the number on the notice. It goes to an independent reviewer Medicare uses, called a BFCC-QIO.
  2. 2Do it by noon the day before the end date on the notice.
  3. 3They usually decide by the end of the next day after they have what they need.
  4. 4You won't be billed for care before the end date on the notice. If your parent stays past that date and the appeal is denied, you may have to pay for the extra days (Medicare.gov).

One thing worth knowing: "she's not improving" is not a valid reason to stop coverage on its own. Medicare covers skilled care that's needed to keep someone from getting worse, not just to help them get better. That was settled in a 2013 federal case called Jimmo v. Sebelius (Center for Medicare Advocacy).

Medicare Advantage and Medigap change the math

First, figure out which kind of Medicare your parent has. Their insurance card will say. A red, white and blue card means Original Medicare. If the card is from a private insurer, call and ask whether it's a Medicare Advantage plan or a supplement, because the rules are very different.

If they have a Medigap (supplement) planWith Original Medicare, it may cover that $217 a day for days 21 to 100. Plans C, D, F, G, M and N pay the full amount. Plan K pays 50% and Plan L pays 75%. Plans A and B pay nothing toward it. No Medigap plan pays after day 100 (Medicare.gov: Choosing a Medigap Policy, 2026).
If they have Medicare AdvantageThe rules above may not apply. Each plan sets its own costs and rules for skilled nursing. Some waive the 3-day hospital stay, and some charge a daily copay even in the first 20 days (Medicare.gov). Nearly all require approval in advance (prior authorization) before they'll pay for a skilled nursing stay (KFF, 2026). Call the number on the card and ask exactly what's covered, for how long, and what it will cost per day.

Questions to ask on day one

Ask these in the first few days, ideally at the first care planning meeting. Write down the answers and who gave them. And bring their medication list. It's one of the first things the facility will ask for.

  • What are the goals for her care, and how will we know when they're met?
  • Roughly how long do you expect her to be here? (Push past "until she gets better.")
  • Which day of her Medicare coverage is she on right now?
  • Who's our main contact here, and how do we reach them? (Usually the social worker or case manager.)
  • Will you tell us right away if Medicare coverage is going to end?
  • What's the plan for when she leaves: home, home with help, or somewhere else?
  • If she needs to stay longer, what's the daily private-pay rate, and do you accept Medicaid? Will she have to change rooms or floors when Medicare stops paying?
Keep everyone in the loop, including your parent.

This is where things broke down for us. When more than one person is helping, information gets lost fast. Agree on who talks to the facility, and share every update with everyone else, even the small ones. A shared note or group text works. And tell your parent what's happening too. It's their care, and not knowing what comes next only adds to the fear.

When Medicare stops paying

This is the moment that caught us off guard. Know your options before you get here.

Go home, with helpMedicare may cover part-time skilled care at home, like a nurse or therapist visiting, but not round-the-clock care or help with bathing and dressing on its own (Medicare.gov).
Stay and pay privatelyAsk for the daily rate in writing. This is what we did while we figured out what came next.
Use long-term care insuranceIf your parent has a policy, call the insurer early. Most policies have a waiting period, often 30, 60 or 90 days, and you pay for care during that time.
Apply for MedicaidFor people with limited income and savings, Medicaid is the main payer for long-term nursing home care. That's the next guide, Paying for care when savings run out.

Whatever you choose, start planning around day 14, not day 99. The social worker can help, but only if you ask.

Next guidePaying for care when savings run outMedicare doesn't pay for long-term care. Here's who does, how Medicaid works, and how to keep your parent in charge of the decision.
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Parent Mode is general information, not legal, medical, or financial advice. Medicare costs change every year. Figures here are for 2026.

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Parent Mode is general information, not legal, medical, or financial advice.

hello@parentmode.co

Parent Mode is general information, not legal, medical, or financial advice.

hello@parentmode.co

Parent Mode is general information, not legal, medical, or financial advice.

hello@parentmode.co