Medicare covers some Alzheimer's care, but not all of it, and the amount depends on which type of care you need and which part of Medicare you have

Medicare pays for doctor visits, hospital stays, certain medications, and some in-home care related to Alzheimer's disease. It does not pay for long-term custodial care in a nursing home or assisted living facility — the kind of help with daily tasks like bathing and dressing that Alzheimer's patients often need most. What Medicare covers falls into specific categories with specific limits, and understanding those limits before you need care can save you from unexpected bills.

The amount Medicare pays also depends on whether you have Original Medicare (Parts A and B) or a Medicare Advantage plan (Part C). Original Medicare and Advantage plans cover different services at different rates, and some Advantage plans add coverage that Original Medicare does not include.

Key Takeaways

  • Medicare Part B covers doctor visits and cognitive testing related to Alzheimer's, but you pay 20 percent of the cost after you meet your deductible.
  • Medicare Part A covers up to 100 days in a skilled nursing facility per benefit period, but only if you were hospitalized first and only for skilled care — not custodial care.
  • Medicare does not pay for assisted living, memory care communities, or help with daily activities in your own home unless a doctor orders home health services after a hospital stay.
  • Medicare Advantage plans often cover additional services like adult day programs or transportation, but coverage varies by plan and by region.
  • Most Alzheimer's care costs come out of pocket or are covered by Medicaid, long-term care insurance, or family resources.

What Medicare Part A covers for Alzheimer's patients

Medicare Part A is hospital insurance. It covers inpatient hospital stays and, under certain conditions, skilled nursing facility care. For an Alzheimer's patient, Part A pays for a hospital stay if you are admitted for a related condition — for example, a fall, a urinary tract infection, or pneumonia. The hospital stay itself is covered after you pay your deductible (which changes each year).

After a hospital stay of at least three consecutive days, Medicare Part A will pay for up to 100 days in a skilled nursing facility per benefit period. The facility must provide skilled nursing or rehabilitation services — not just help with daily living. In the first 20 days, Medicare pays 100 percent of the cost. From day 21 to day 100, you pay a daily copayment (the amount changes yearly). After 100 days, you pay the full cost yourself.

The key word is "skilled." If you need a nursing home only because you cannot bathe, dress, or eat on your own — which is common in Alzheimer's — Medicare will not pay. Part A only covers care that requires a nurse or therapist, such as wound care, medication management, or physical therapy. Many Alzheimer's patients do not may have access to for skilled care and must pay out of pocket or turn to Medicaid.

What Medicare Part B covers for Alzheimer's diagnosis and treatment

Medicare Part B is medical insurance. It covers doctor visits, diagnostic tests, and some treatments related to Alzheimer's. Your primary care doctor or a neurologist can order cognitive testing — such as the Montreal Cognitive Assessment or Mini-Cog — and Medicare Part B will pay 80 percent of the cost after you meet your annual deductible. You pay the remaining 20 percent.

Part B also covers medications prescribed by a doctor, though only certain Alzheimer's drugs are covered. Aducanumab (Aduhelm) and lecanemab (Leqembi) are newer monoclonal antibody drugs that slow cognitive decline in early-stage Alzheimer's. Medicare covers these drugs, but they require regular infusions at a hospital or infusion center, and you will pay 20 percent of the cost. Your doctor must confirm that you have mild cognitive impairment or mild dementia due to Alzheimer's disease before you can receive these drugs.

Older Alzheimer's medications like donepezil (Aricept), rivastigmine (Exelon), and memantine (Namenda) are covered under Medicare Part D (prescription drug coverage), not Part B. If you have Original Medicare, you must have a separate Part D plan to cover these pills. If you have a Medicare Advantage plan, prescription coverage is usually included.

What Medicare does not cover for Alzheimer's care

Medicare does not pay for assisted living facilities or memory care communities, even if the facility is specifically designed for Alzheimer's patients. These are residential settings where staff help with bathing, dressing, meals, and medication reminders — all custodial care. Medicare considers this personal care, not medical care, and does not cover it under any part of Medicare.

Medicare also does not pay for long-term custodial care in a nursing home after your 100 days of skilled nursing facility coverage end. If you need ongoing help with daily activities and do not may have access to for skilled care, you must pay out of pocket or turn to Medicaid (which does cover long-term nursing home care if you meet income and asset limits).

Home care for daily activities — such as a home health aide coming to help you bathe and dress — is not covered by Medicare unless it is ordered as part of a home health plan after a hospital stay. If your doctor orders home health services, Medicare Part A will pay for a nurse or therapist to visit, and may cover some aide visits if they are tied to skilled care. But Medicare will not pay for an aide to come help you with personal care if you have not been hospitalized recently.

How Medicare Advantage plans differ in Alzheimer's coverage

If you have a Medicare Advantage plan (Part C), your coverage works differently than Original Medicare. Advantage plans must cover everything Original Medicare covers, but they often add extra benefits. Many Advantage plans cover adult day programs, which provide social activities and supervision for people with cognitive decline. Some plans cover transportation to medical appointments, which can be valuable if you cannot drive safely due to Alzheimer's.

Advantage plans vary widely by region and by insurer. Some plans offer a small amount of in-home support or respite care — temporary relief for a family caregiver — but this is not standard across all plans. You need to check your specific plan's summary of coverage to see what Alzheimer's-related services are included beyond what Original Medicare covers.

One important difference: Advantage plans use networks. You must see doctors and use facilities within the plan's network, or pay more out of pocket. If you live in a rural area or need a specialist who is not in the network, this can be a problem.

What Medicaid covers that Medicare does not

Medicaid is a separate program from Medicare, run by states with federal funding. While Medicare does not pay for long-term custodial care, Medicaid does — including assisted living and nursing home care. Medicaid will pay for these services if you meet income and asset limits, which vary by state.

Many people with Alzheimer's eventually turn to Medicaid to pay for long-term care because Medicare coverage runs out. If you have some savings or a home, you may need to spend down your assets to Medicaid limits before the program will pay. This is a complex process, and it is worth talking to an elder law attorney or a Medicaid planner before you need care, so you understand what will happen to your finances.

Some states offer Medicaid waiver programs that allow people to receive care at home or in the community instead of a nursing home, which can be less expensive and more desirable for people with Alzheimer's. These programs have waiting lists and vary by state.

Out-of-pocket costs and planning ahead

Most Alzheimer's care costs money that comes out of your pocket or your family's pocket. Even with Medicare, you pay deductibles, copayments, and coinsurance. If you need a nursing home or assisted living, you pay the full cost until your savings run out and you turn to Medicaid.

The average cost of assisted living is roughly $4,500 to $6,000 per month, though this varies widely by location and facility. A private room in a nursing home can cost $8,000 to $12,000 per month or more. In-home care with a private caregiver can cost $20 to $30 per hour or more, depending on the level of care needed and where you live.

Planning ahead can help. Some people buy long-term care insurance while they are still healthy, which pays for custodial care in a nursing home or at home. Others set aside savings or rely on family to provide care. Talking to a financial planner or elder law attorney about your options before you need care can help you understand what Medicare will and will not pay for, and what you need to plan for yourself.

Frequently Asked Questions

Does Medicare pay for memory care or assisted living?

No. Medicare does not cover assisted living, memory care communities, or any residential facility that provides custodial care — help with bathing, dressing, meals, and daily activities. Medicaid covers these services in most states if you meet income and asset limits.

Will Medicare pay for a home health aide to help my parent with Alzheimer's?

Only if a doctor orders home health services after a hospital stay. Medicare Part A will then pay for a nurse or therapist to visit, and may cover some aide visits if they are tied to skilled care. If your parent has not been hospitalized, Medicare will not pay for an aide to help with bathing, dressing, or other daily tasks.

What is the difference between Original Medicare and Medicare Advantage for Alzheimer's care?

Original Medicare (Parts A and B) covers hospital stays, skilled nursing facility care, doctor visits, and certain medications. Medicare Advantage plans must cover the same services but often add extras like adult day programs or transportation. Advantage plans use networks, so you must see in-network doctors or pay more.

Does Medicare cover the new Alzheimer's drugs like Leqembi?

Yes. Medicare Part B covers lecanemab (Leqembi) and aducanumab (Aduhelm) for people with mild cognitive impairment or mild dementia due to Alzheimer's. You pay 20 percent of the cost after meeting your deductible. Older Alzheimer's pills like donepezil are covered under Medicare Part D (prescription drug coverage).

What happens to Medicare coverage after 100 days in a nursing home?

After 100 days of skilled nursing facility care per benefit period, Medicare stops paying. You then pay the full cost yourself, or you may turn to Medicaid if you meet income and asset limits. Some people return home or move to assisted living and pay out of pocket.