Educational content only. Not Medicare, insurance, or financial advice. Not affiliated with CMS, Medicare.gov, or SSA.
By Keith Guirao, founder and editor of Savvy Senior Central (Maven Media).
Part A is Hospital Insurance. It is one half of Original Medicare. Medicare.gov: it helps cover inpatient care in hospitals, skilled nursing facility (SNF) care, hospice care, and some home health care. CMS’s November 14, 2025 fact sheet also names inpatient rehabilitation in the Part A list. It is not the doctor bill. It is not assisted living rent. It is not a yearly “hospital allowance” that resets every January the way people expect.
You still need Part B for doctors and outpatient care. Medicare Advantage is a different way to get Part A and Part B together, not an extra layer stacked on Original Medicare.
I have spent 18 years inside consumer marketing and lead generation in insurance and health. That is operator experience, not a counseling credential. The ad says “hospital coverage.” The bill is a benefit period, a $1,736 deductible you can pay more than once in a calendar year, and a 3-day inpatient rule that observation nights do not satisfy.
What Part A covers (four buckets)
1. Inpatient hospital. Part A usually covers inpatient hospital care if you are admitted with a doctor’s order and the hospital accepts Medicare. Covered services include a semi-private room, meals, general nursing, certain drugs as part of inpatient treatment, and other hospital services and supplies that are part of inpatient care. Settings include acute care hospitals, critical access hospitals, inpatient rehabilitation facilities, inpatient psychiatric facilities, and long-term care hospitals. Medicare does not cover private-duty nursing, a private room unless medically necessary, or a television or phone if there is a separate charge.
Inpatient vs outpatient (and the MOON.) You are an inpatient when the hospital formally admits you. You are an outpatient if you are getting emergency, observation, surgery, lab, or X-ray services and the doctor has not written an admission order, even if you spend the night. If you are under observation more than 24 hours, the hospital must give you a Medicare Outpatient Observation Notice (MOON). Doctors’ services you get in the hospital are generally Part B (usually 80% of the Medicare-approved amount after the Part B deductible if you have Part B and the provider accepts assignment). Part A does not pay that doctor bill.
2. Skilled nursing facility (SNF.) Skilled care is nursing and therapy that can only be safely and effectively performed by, or under the supervision of, professionals or technical personnel. Covered SNF services include a semi-private room, meals, skilled nursing, needed therapy, and medical supplies used in the facility. Part A limits SNF coverage to 100 days in each benefit period, and only after you meet the qualifying hospital stay rules below.
3. Hospice. Part A covers hospice if a hospice doctor and your regular doctor (if you have one) certify that you are terminally ill (life expectancy of 6 months or less if the illness runs its normal course) and you choose comfort care instead of treatment to cure the illness. You can usually get it at home or where you live. Benefit periods: two 90-day periods, then an unlimited number of 60-day periods. Original Medicare is billed for hospice even if you are in Advantage.
4. Home health. Part A and/or Part B cover certain home health services if you need part-time or intermittent skilled care and you are homebound. Medicare does not pay for 24-hour care at home, meal delivery, or custodial care when that is the only care you need. You pay nothing for covered home health services (20% for durable medical equipment after the Part B deductible).
A benefit period is not a calendar year
Original Medicare measures hospital and SNF use in benefit periods, not January-to-December years. *Your Medicare Benefits* and *Medicare & You 2026* use the same definition:
- A benefit period begins the day you are admitted as an inpatient in a hospital or SNF.
- It ends when you have not gotten any inpatient hospital care, or skilled care in a SNF, for 60 days in a row.
- If you go into a hospital or SNF after one period has ended, a new one begins.
- You must pay the inpatient hospital deductible for each benefit period.
- There is no limit on the number of benefit periods.
That is why someone can pay the $1,736 deductible more than once in the same calendar year. “I already paid my hospital deductible in March” does not freeze Part A cost sharing for December if a new benefit period has started.
What Part A costs in 2026
Official 2026 amounts, published by CMS on November 14, 2025, and restated on Medicare.gov’s costs page, in publication 11579, and in *Medicare & You 2026*.
Premium. Approximately 99% of Medicare beneficiaries have no Part A premium. CMS: they have at least 40 quarters of Medicare-covered employment, as SSA determines. Medicare.gov: most people pay $0 because they or a spouse paid Medicare taxes long enough while working, generally at least 10 years (40 quarters).
If you do not qualify, you might buy Part A at $311 or $565 a month in 2026, depending on how long you or your spouse worked and paid Medicare taxes. CMS: $311 is the reduced rate for people with at least 30 quarters (or married to someone with at least 30). $565 is the full premium for fewer than 30 quarters. You also have to sign up for Part B to buy Part A in the usual voluntary buy-in path. Late Part A premiums (if you must buy Part A and delay) use a different penalty structure than Part B, see Medicare.gov’s avoid-penalties page.
Inpatient hospital, each benefit period
| Days | What you pay (2026) |
|---|---|
| 1-60 | $0/day after the $1,736 deductible |
| 61-90 | $434/day |
| 91-150 | $868/day while using lifetime reserve days (60 days, once in a lifetime) |
| After day 150 | You pay all costs |
Skilled nursing facility, each benefit period
| Days | What you pay (2026) |
|---|---|
| 1-20 | $0 |
| 21-100 | $217/day |
| 101+ | You pay all costs |
You do not have to pay the Part A deductible again for SNF care if you already paid it for hospital care in the same benefit period. Those figures are Original Medicare. Advantage copays for the same stays follow the plan’s Evidence of Coverage, not this federal schedule (except where CMS sets a limit).
Hospice. You pay nothing for covered hospice care from a Medicare-approved hospice. You may pay a copayment of up to $5 for each outpatient prescription for pain and symptom control, and 5% of the Medicare-approved amount for inpatient respite care. Room and board is not covered as a hospice benefit in the usual home setting.
There is no yearly limit on what you pay out of pocket on Original Medicare alone. Medigap can help with some of these shares on Path A; Advantage replaces the schedule with plan copays and a medical OOP maximum.
The 3-day inpatient rule for SNF (observation does not count)
Medicare will only cover SNF care if you first have a qualifying inpatient hospital stay. Medicare.gov: a prior medically necessary inpatient hospital stay of at least 3 days in a row, starting the day you were admitted as an inpatient, but not including the day you leave. You generally must enter the SNF within a short time (generally 30 days) of leaving the hospital. A doctor must certify you need daily skilled care. The facility must be Medicare-certified.
Observation does not count. Time you spend under observation or in the emergency room before you are admitted does not count toward the 3-day stay, even if you are there overnight. CMS’s billing rule: count the admission day, not the discharge day, and not pre-admission time in the ED or under outpatient observation.
You may not need a 3-day stay if your doctor participates in an Accountable Care Organization approved for a SNF 3-Day Rule Waiver. Medicare Advantage Plans may also waive it under plan rules. Ask the hospital discharge planner, do not assume a three-night stay was three inpatient days.
What Part A does not cover
Medicare.gov: Medicare doesn’t pay for long-term care. You pay all costs. Long-term care is also called custodial care or long-term services and support, mostly help with activities of daily living: dressing, bathing, using the bathroom. You can get that care at home, in the community, in an assisted living facility, or in a nursing home. Room and board in assisted living is not a Part A benefit.
Medicare doesn’t cover custodial care if it’s the only care you need. Medicare generally doesn’t cover long-term nursing home stays unless you are receiving skilled nursing care that meets Part A rules. A short-term SNF stay after a qualifying hospital admission is not a lease.
Doctors, most outpatient care, most preventive services, and durable medical equipment sit in Part B. Most dental, hearing aids, and routine vision sit outside Original Medicare entirely.
You still need Part B. Advantage is a different path
Original Medicare is Part A plus Part B. You will have Original Medicare unless you join a Medicare Advantage Plan. That is the CMS default, not a sales pitch.
Part B helps cover doctors, outpatient care, home health, durable medical equipment, and many preventive services. Most people pay the 2026 standard Part B premium of $202.90 a month, even with no Part B services, and a $283 yearly deductible. After the deductible, you usually pay 20% of the Medicare-approved amount if the provider accepts assignment. You still pay Part B in Advantage. Higher incomes may owe IRMAA. see SSA’s tables, linked from the Part B guide.
Medicare Advantage (Part C) is a Medicare-approved private plan that bundles Part A, Part B, and usually Part D. You must have both A and B to join. You get most A and B coverage from the plan. Hospital and SNF copays follow the plan, not the $1,736 / $434 / $217 schedule above, except where CMS sets a limit. Hospice is still billed to Original Medicare.
This page will not rank carriers or treat a marketplace quote as a CMS figure.
A practical read of an inpatient bill (not advice)
- Ask: Am I admitted as an inpatient, or under observation? Get the MOON if observation lasts more than 24 hours.
- Track the benefit period start date, not just the calendar year.
- If SNF is next, confirm three inpatient midnights counted the Medicare way, or a documented waiver/Advantage rule.
- Separate the facility bill (Part A territory when inpatient) from the doctor bill (usually Part B).
- If you have Medigap, match the letter’s Part A deductible / SNF coinsurance rows to the federal schedule above.
- Confirm every figure with Medicare.gov, the hospital billing office, or SHIP before you dispute a bill from a blog.
FAQ
Is Part A free?
For about 99% of beneficiaries, the Part A premium is $0 (40+ quarters). You can still owe the $1,736 inpatient deductible and daily coinsurance per benefit period. People who must buy Part A pay $311 or $565/month in 2026.
What is a benefit period, and can I pay the $1,736 deductible twice in one year?
Yes. A new benefit period can start after 60 days without inpatient hospital or SNF skilled care. Each new period brings a new inpatient deductible. There is no annual cap on the number of periods.
Does a night under observation count toward SNF coverage?
No. Observation and ED time before formal admission do not count toward the 3-day inpatient qualifying stay, even overnight.
Does Part A pay for assisted living or long-term custodial care?
No. Custodial care and assisted living room and board are not Part A benefits. Short-term skilled SNF care after a qualifying stay is different from long-term custodial nursing home care.
If I have Part A, do I still need Part B?
Usually yes for doctors and outpatient coverage. Original Medicare is A+B. Buying only Part A leaves a large outpatient gap and can complicate Advantage eligibility (you need both to join).
Is Medicare Advantage the same as Part A?
No. Advantage (Part C) is a private plan that delivers Part A and Part B (and usually Part D) under plan rules. You still have Medicare; you use the plan card for most A/B services. Hospice remains Original Medicare-billed.
Do lifetime reserve days reset each year?
No. You have 60 lifetime reserve days once in your lifetime. Using them at $868/day in 2026 spends them permanently.
What are the 2026 SNF daily costs after day 20?
$217 per day for days 21-100 in a benefit period; after day 100 you pay all costs (Original Medicare).
Sources
Every figure above traces to CMS or Medicare.gov. We do not cite insurance marketplaces for data. Figures last verified September 22, 2026 (ET).
- Medicare.gov: What Part A covers
- CMS: 2026 Medicare Parts A & B Premiums and Deductibles (Nov. 14, 2025)
- Medicare.gov: 2026 Medicare Costs (Publication 11579)
- Medicare.gov: Medicare & You 2026 (Publication 10050)
- Medicare.gov: Skilled nursing facility (SNF) care
- Medicare.gov: Hospice care
- Medicare.gov: Home health services
- Medicare.gov: Inpatient or outpatient hospital status (MOON)
- Medicare.gov: Medicare Hospital Benefits (Publication 11435)
- Medicare.gov: Avoid late enrollment penalties
