What Does Medicare Part A Cover? 7 Critical Facts and Gaps
Most people know Part A covers hospital stays. What surprises people is how quickly costs add up after day 60, and the long list of services Part A will not pay for at all.
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What Does Medicare Part A Cover?
If you have ever wondered what does Medicare Part A cover, the short answer is four areas: hospital inpatient stays, skilled nursing care, certain home health services, and hospice. But the details behind each of those areas are what actually determine what you pay. Each has its own eligibility rules, cost structure, and time limits, and understanding them before you need coverage can mean the difference between a manageable situation and a bill that comes as a real shock.
Part A is sometimes called hospital insurance, but that label leaves out hospice care, skilled nursing facility stays, and certain home health services. It also leaves out the fact that coverage has daily cost thresholds that kick in around week two of a hospital stay, and a hard cutoff point where it stops paying entirely.
If you want a full overview of how Parts A, B, C, and D all fit together, the Medicare Parts Explained guide covers the whole system. This post focuses on Part A specifically, including what it covers, what it costs, and what it will not pay for.
The Four Main Areas Medicare Part A Covers
- Hospital inpatient care (semi-private room, nursing, meals, and related services)
- Skilled nursing facility care after a qualifying hospital stay
- Home health care when medically necessary and ordered by a doctor
- Hospice care when a doctor certifies a terminal diagnosis
Hospital Inpatient Care
When a doctor formally admits you to a hospital as an inpatient, Part A covers your semi-private room, nursing services, meals, medications administered as part of your inpatient treatment, and other hospital services related to your care. Critical access hospitals and inpatient rehabilitation facilities are included.
That word “formally” is where the catch lives. Hospitals sometimes place patients under “observation status” rather than admitting them as inpatients. Observation status is classified as outpatient care, which means Part B handles the cost-sharing instead of Part A. If you are in the hospital for an extended stay but never formally admitted, you could face different costs and might not qualify for Part A skilled nursing coverage afterward.
Under federal law, hospitals are required to give you a written notice if you are placed under observation status for more than 24 hours. If you or a family member is hospitalized, it is worth asking directly: “Am I formally admitted as an inpatient, or am I under observation status?”
Skilled Nursing Facility Coverage
Part A covers short-term care in a skilled nursing facility after a qualifying hospital stay. That means at least three consecutive days as a formal inpatient, not counting your discharge day. Observation status days do not count toward this requirement, which catches a lot of families off guard.
If you meet the qualifying stay requirement, here is how the coverage works, based on current figures from Medicare.gov:
| Days in Skilled Nursing Facility | Part A Pays | You Pay |
|---|---|---|
| Days 1-20 | All approved costs | $0 |
| Days 21-100 | Costs above daily coinsurance | $217 per day |
| Day 101 and beyond | Nothing | All costs |
Part A covers skilled care, not long-term personal care. Skilled care means services that require a trained nurse or therapist, such as wound care, intravenous medications, or physical therapy following surgery. As soon as your clinical need for skilled services ends, Part A coverage stops, regardless of where you are in the 100-day window.
Home Health Care
Part A can cover medically necessary home health services when two conditions are met. First, your doctor must certify that you are homebound, meaning leaving home requires a considerable effort or is not medically advisable. Second, you must need skilled nursing care, physical therapy, speech-language pathology, or occupational therapy on an intermittent basis.
Approved home health services include skilled nursing visits, physical and occupational therapy, speech therapy, medical social services, and part-time home health aide services when provided alongside skilled care. According to Medicare.gov, there is no deductible or coinsurance for covered home health visits. The one exception is durable medical equipment, such as a wheelchair, walker, or hospital bed, which comes with a 20% coinsurance charge.
What Part A does not cover is ongoing custodial assistance with daily activities when no skilled care need is present. If someone needs help with bathing, cooking, or getting around the house due to age or chronic illness rather than a post-acute clinical need, that falls outside what Medicare Part A covers. That distinction is important for anyone planning long-term care for themselves or a parent.
Hospice Care
Part A covers hospice care when a doctor certifies a terminal diagnosis with a life expectancy of six months or less, and you choose to focus on comfort rather than curative treatment. Choosing hospice means shifting the goal of care from curing the illness to managing symptoms and supporting quality of life.
Under the hospice benefit, Part A covers nursing care, doctor visits related to the terminal diagnosis, medical equipment, counseling, and short-term inpatient stays for symptom relief. According to Medicare.gov, most hospice services cost nothing. There are two small exceptions: a copayment of up to $5 per prescription for pain and symptom management at home, and 5% of the Medicare-approved amount for inpatient respite care stays.
When you elect the hospice benefit, Part A no longer covers curative treatment for the terminal condition. You can still receive Part A benefits for conditions unrelated to that diagnosis. The hospice benefit can be renewed in additional benefit periods as long as the doctor continues to certify eligibility.
What Medicare Part A Does Not Cover
Knowing the gaps in what Medicare Part A covers is just as important as knowing what it does. These are the areas that catch people off guard, sometimes at the worst possible time.
Prescription drugs. Part A does not cover outpatient prescription medications. That is covered by Part D.
Outpatient doctor visits. Office visits, specialist appointments, and outpatient care fall under Part B. If you see a physician outside of a formal inpatient admission, Part B handles the billing.
Dental care. Routine dental exams, cleanings, fillings, extractions, and dentures are not covered by Part A or any other part of Original Medicare.
Vision care. Routine eye exams for glasses or contacts, eyeglasses, and contact lenses are not covered. Medically necessary eye surgery, like cataract removal, is a Part B benefit.
Hearing aids. Neither the exam to fit hearing aids nor the hearing aids themselves are covered. This is one of the more costly gaps, given how common hearing loss is.
Long-term or custodial care. This is the biggest gap in what Medicare Part A covers. If you need ongoing help with bathing, dressing, eating, or other daily activities because of chronic illness or aging, Medicare does not pay for that care, whether it is provided at home or in a nursing facility.
Part A covers skilled care with a clinical purpose. It does not cover indefinite personal or custodial care. Families who do not know this going in are often blindsided when Medicare coverage ends after a hospitalization or SNF stay.
Private hospital room upgrades. Part A covers a semi-private room. A private room is an upgrade you pay for out of pocket.
What Medicare Part A Costs
The deductible is not annual. This is the most important cost fact about Part A. Instead of a once-per-year deductible, Part A uses a benefit period deductible. A benefit period begins the day you are admitted as an inpatient and ends after you have been out of inpatient or SNF care for 60 consecutive days.
According to Medicare.gov, the Part A deductible is $1,736 per benefit period.
If you are hospitalized twice in the same year with more than 60 days between stays, you pay the $1,736 deductible twice. Most people do not realize this until the second bill arrives.
After the deductible, your daily cost depends on how long the inpatient stay runs:
| Hospital Stay Length | Part A Pays | You Pay |
|---|---|---|
| Days 1-60 | All approved costs | $1,736 deductible (once per benefit period) |
| Days 61-90 | Costs above daily coinsurance | $434 per day |
| Days 91-150 (lifetime reserve days) | Costs above daily coinsurance | $868 per day |
| Day 151 and beyond | Nothing | All costs |
Lifetime reserve days are a one-time resource. According to Medicare.gov, you have 60 lifetime reserve days total. Once they are used, they cannot be renewed.
Is Part A free? For most people, yes. According to Medicare.gov, if you or your spouse worked and paid Medicare taxes for at least 40 quarters (10 years), you pay no monthly premium for Part A.
If you have 30 to 39 qualifying quarters, the premium is $311 per month. Fewer than 30 quarters means a premium of $565 per month. Even when the premium is free, you still pay the deductible and any daily coinsurance when you actually use Part A.
The gaps in Medicare Part A coverage are real, and the cost structure is more complicated than most people expect going in. A supplemental plan, whether that is a Medigap policy or a Medicare Advantage plan, can help close those gaps. That is a separate conversation worth having before you need coverage, not after.
Frequently Asked Questions
Does Medicare Part A cover emergency room visits?
Generally, no. Emergency room care is a Part B benefit. Part A coverage begins only when a doctor formally admits you as an inpatient. If you are treated in the ER and discharged without being admitted, Part B handles those costs. If you are admitted to the hospital after an ER visit, Part A then takes over for the inpatient stay.
Does Medicare Part A cover surgery?
It depends on whether the surgery is performed on an inpatient or outpatient basis. Surgery during a formal inpatient hospital admission is covered under Part A. Surgery performed at an outpatient surgery center or on an outpatient basis at a hospital falls under Part B instead. That classification affects your cost-sharing structure, so it is worth asking before any planned procedure which category it falls into.
Can I have Medicare Part A and still contribute to an HSA?
No. Once you enroll in any part of Medicare, including Part A only, you can no longer make contributions to a Health Savings Account. If you are still working at 65 and contributing to an HSA through a qualifying high-deductible health plan, you may be able to delay Medicare enrollment to preserve that eligibility.
One important timing issue: applying for Social Security benefits triggers automatic Part A enrollment backdated up to six months, so you need to stop HSA contributions before that point. IRS Publication 969 covers the full rules. A benefits specialist can help you get the timing right.
Does Medicare Part A cover ambulance services?
Ambulance transportation is generally a Part B benefit, not Part A. According to Medicare.gov, Part B covers medically necessary ambulance transport when other forms of transportation would endanger your health. If an ambulance ride results in a hospital admission, Part A then covers the inpatient stay itself.
What is a Medicare benefit period, and when does it reset?
A benefit period begins the day you are formally admitted as an inpatient and ends after you have been out of inpatient hospital or skilled nursing facility care for 60 consecutive days. There is no annual limit on benefit periods.
Each new benefit period carries its own $1,736 deductible. If you have two hospital stays in the same year with more than 60 days between them, you pay the deductible twice. There is no cap on how many benefit periods you can have across a lifetime.
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