Medicare covers some nursing home costs for dementia, but only under specific conditions and only for a limited time

Medicare will pay for a nursing home stay if you are admitted directly from a hospital after at least three days as an inpatient, and if a doctor determines you need skilled nursing care — not just supervision or help with daily tasks. For someone with dementia, this means Medicare covers the cost only if the dementia care involves skilled services: wound care after a fall, medication management that requires a nurse's assessment, physical therapy to regain mobility, or similar medical services that a registered nurse or therapist must provide.

Medicare does not cover custodial care, which is what most dementia residents receive. Custodial care means help with bathing, dressing, eating, toileting, and supervision — the daily support that keeps someone safe but does not treat a medical condition. If dementia is the only reason someone is in the nursing home, Medicare will not pay. The distinction matters because it determines whether you pay nothing, a copay, or the full daily rate.

Coverage lasts up to 100 days in a benefit period, but only if you continue to need skilled care. Once your skilled need ends — for example, after you finish physical therapy — Medicare stops paying, even if you stay in the facility. Many families discover this when a doctor says the resident no longer requires skilled nursing, and the bill shifts to them or to Medicaid.

Key Takeaways

  • Medicare Part A covers nursing home care only after a hospital stay of at least three consecutive days and only for skilled nursing services, not custodial care or supervision.
  • For dementia residents, Medicare pays only if a nurse or therapist is providing skilled services like wound care or physical therapy, not for help with bathing, dressing, or daily supervision.
  • Coverage lasts up to 100 days per benefit period, but stops as soon as a doctor determines the resident no longer needs skilled care.
  • You pay a copay for days 1 through 20 (currently $0 under Part A), and a daily copay for days 21 through 100; after day 100, you pay the full cost unless Medicaid covers it.
  • Medicaid, not Medicare, is the program that pays for long-term custodial nursing home care for dementia, and it has its own income and asset limits.

The three-day hospital stay requirement

You must spend at least three consecutive days in a hospital as an inpatient before Medicare will pay for any nursing home stay. Observation status does not count — only inpatient admission. This rule trips up many families because a doctor may say "we're admitting you to the hospital," but the billing department later classifies the stay as observation, which means Medicare will not cover the nursing home afterward.

Ask the hospital directly: "Am I admitted as an inpatient or on observation status?" If you are on observation, ask what it would take to change that status, because the difference determines whether Medicare pays for nursing home care. If the hospital refuses to change it and you believe the decision is wrong, you can file an appeal, but that takes time and the nursing home stay may have already started.

The three days must be consecutive calendar days, and they must occur within 30 days before you enter the nursing home. If you leave the hospital on day three and enter the nursing home on day 31, the hospital stay no longer counts.

What "skilled nursing care" means for dementia

Skilled nursing care is medical care that must be provided or supervised by a registered nurse or licensed therapist. For a dementia resident, this might include managing complex medications, monitoring for infections or other medical changes, wound care after a fall, physical therapy to help someone walk again after a hospital stay, or speech therapy for swallowing problems. It does not include reminders to take medication, help getting dressed, or watching someone to make sure they do not wander.

A doctor and the nursing home's care team decide whether the resident's needs are skilled or custodial. This decision is not always clear-cut, and it can change. A resident might arrive needing skilled care (such as IV antibiotics for pneumonia) and transition to custodial care once the infection clears. When that happens, Medicare stops paying.

If you disagree with the decision that care is no longer skilled, you can ask for a detailed explanation and file an appeal. The nursing home must give you written notice before it stops billing Medicare, and you have the right to challenge that decision.

How long Medicare pays and what you owe

Medicare Part A covers up to 100 days of nursing home care per benefit period. A benefit period begins the day you enter the hospital and ends 60 days after you leave the nursing home. If you return to the hospital during that time, the clock does not reset.

You pay nothing for days 1 through 20 of your nursing home stay. For days 21 through 100, you pay a daily copay (the amount changes yearly; check with Medicare for the current figure). After day 100, you pay the full daily cost of the nursing home unless another program, such as Medicaid, takes over.

The 100-day limit resets only when a new benefit period begins — which happens 60 days after you leave the nursing home. If you go home for 60 days and then return, a new benefit period starts and you get another 100 days of coverage. But if you return within 60 days, you are still in the same benefit period and your remaining days are reduced by however many you already used.

When Medicare coverage ends and what happens next

Medicare stops paying when one of three things happens: you have used all 100 days, a doctor determines you no longer need skilled care, or you are discharged from the nursing home. The nursing home must notify you in writing before coverage ends, and you have the right to appeal if you believe the decision is wrong.

When Medicare stops paying, you become responsible for the full daily cost unless Medicaid covers it. Many families do not realize this until they receive a bill. If the resident has limited income and assets, Medicaid may pay for ongoing custodial care in the nursing home, but Medicaid has its own rules and waiting periods. Some states have waiting lists; others process applications quickly.

Before Medicare coverage ends, ask the nursing home's social worker about Medicaid and whether the resident might may have access to. Starting the Medicaid process early — even before Medicare runs out — can prevent a gap in coverage. Some states allow Medicaid to cover the cost retroactively if the process was filed before the need arose.

Medicare Part B and supplemental services

Medicare Part B covers some services within the nursing home, such as doctor visits, lab tests, and certain therapies, but it does not cover the room, board, or nursing care itself. Part B works the same way in a nursing home as it does outside: you pay a copay or coinsurance for each service, and your Part B deductible still applies.

If you have a Medigap (supplemental insurance) policy, it may cover some of the copays and coinsurance you owe for Part B services. Check your policy to see what it covers in a nursing home setting, because some Medigap plans have different rules for facility care.

Prescription drugs in the nursing home are covered by Medicare Part D, the prescription drug plan. The nursing home's pharmacy must be in your plan's network, so confirm this before admission. If it is not, you may pay more or need to transfer prescriptions to a network pharmacy.

Medicaid as the long-term solution for dementia care

Medicaid, not Medicare, is the program that pays for long-term nursing home care when someone has dementia and needs custodial care. Medicaid covers the full cost of the room, board, and care once you meet the program's income and asset limits, which vary by state. Some states are more generous; others have strict limits.

To may have access to for Medicaid nursing home coverage, your income and assets must be below your state's threshold. Many states allow you to keep a home, a car, and a small amount of cash, but count other assets like bank accounts and investments. Medicaid also has rules about gifts and transfers: if you gave away money or assets in the past five years, Medicaid may penalize you by delaying coverage.

Because Medicaid rules are complex and state-specific, talk to a Medicaid planner or elder law attorney before spending down assets or making large gifts. A wrong move can cost thousands of dollars in delayed coverage. Many nursing homes have social workers who can explain Medicaid in your state and help with the process.

Questions to ask your doctor and the nursing home

Before or shortly after admission, ask the doctor and nursing home team these questions: Is this admission classified as inpatient or observation? Will the resident need skilled nursing care, and if so, for how long? What is the plan to transition from skilled to custodial care, and when might that happen? What will the daily cost be after Medicare stops paying? Does the nursing home accept Medicaid, and what is the process for explore?

Ask for a written summary of the care plan and the expected length of the skilled care phase. Ask the social worker to explain the difference between what Medicare covers and what you will owe. Request written notice before Medicare coverage ends, and ask what options exist if you cannot afford the full daily cost.

Keep copies of all bills, notices, and correspondence. If you receive a bill you believe Medicare should have covered, contact Medicare to ask why the claim was denied. You have the right to appeal any coverage decision.

Frequently Asked Questions

Can Medicare cover nursing home care if someone has dementia but never went to the hospital?

No. Medicare requires a hospital stay of at least three consecutive days as an inpatient before it will pay for nursing home care. If someone enters a nursing home directly from home, Medicare will not cover it, even if they have dementia. Medicaid may cover custodial care if the person qualifies financially.

What happens if the nursing home says my mother no longer needs skilled care after two weeks?

Medicare stops paying once skilled care ends, even if you have days remaining. The nursing home must give you written notice and explain why care is no longer skilled. You can appeal this decision if you believe it is wrong. If you disagree, contact Medicare or ask the nursing home's social worker to help file an appeal.

Does Medicare cover medication management and supervision for dementia?

Medicare covers medication management only if it requires a nurse's assessment and intervention — for example, monitoring for side effects of a new psychiatric medication or adjusting doses based on lab results. Reminders to take medication or watching someone take pills does not count as skilled care and is not covered by Medicare.

Can I use Medicare to pay for a nursing home while waiting for Medicaid approval?

Only if you meet Medicare's requirements: a hospital stay of at least three days and a skilled nursing need. If you do, Medicare will cover up to 100 days while you wait for Medicaid. After Medicare ends, you pay out of pocket until Medicaid approves. Some states allow Medicaid to cover costs retroactively if you applied before Medicare ended.

What if my income is too high for Medicaid but I cannot afford nursing home care after Medicare stops paying?

Some states have programs for people with higher incomes, and some nursing homes offer financial information or sliding-scale fees. Talk to the nursing home's social worker or business office about options. You can also contact your state's Medicaid office to ask about programs for people with income above the standard limit.