Shorter retroactive coverage leaves Alzheimer's patients on Medicare with one to two months of nursing-home bills Medicaid would have paid. Retroactive coverage is Medicaid back payment to the months before you apply, and that back payment shrinks starting January 1, 2027. The cut is to Medicaid, not to Medicare Part A or B. It hits hardest when a person with Medicare needs Medicaid for long-term care or holds both programs together.
Medical information disclaimer: This article is for general educational purposes only and does not provide medical advice, diagnosis, or treatment. Always consult a physician or other qualified health professional about symptoms, medications, tests, or treatment decisions.
Official resources:
- Apply through Mn’s official page — Use this page to review requirements and apply directly.
- Register through Kff’s official page — Use this page to review requirements and register directly.
Table of Contents
- Why Medicare does not cover the gap
- What changes on January 1, 2027
- How families fall into the uncovered months
- What to do before care is needed
Why Medicare does not cover the gap
Medicare does not pay for custodial long-term care or a memory-care facility. Medicaid does cover nursing-facility and long-term-care services and is the primary U.S.
payer for them, according to medicareresources.org in its memory-care coverage FAQ. Millions of Medicare beneficiaries with Alzheimer's are dually eligible for Medicaid. For them, Medicare pays for medical services while Medicaid covers long-term care plus premiums, deductibles and cost-sharing.
What changes on January 1, 2027
The 2025 federal reconciliation law signed July 4, 2025 reduces Medicaid retroactive coverage from up to 90 days to one month for expansion adults and two months for other enrollees, according to KFF in its 2025 reconciliation tracker. The new limits start January 1, 2027.
Older adults and people with disabilities outside expansion, including nursing-home residents, fall in the two-month group. For them, 90 days of back coverage becomes 60 days, according to the Minnesota Department of Human Services in its retroactive coverage update.
How families fall into the uncovered months
Dementia often forces a fast move from hospital to nursing home. Families focus on placement and safety first and file the Medicaid application weeks later. That delay now matters more.
Families that apply late after hospitalization or dementia progression can face one to two months of uncovered nursing-home bills. Hospitals warn the gap becomes family medical debt or provider uncompensated care. For Alzheimer's care, even one month of facility costs can strain a household budget.
What to do before care is needed
Start the Medicaid application as soon as nursing-home care looks likely, not after admission. Track the application month, because back payment is now counted from that month.
The Alzheimer's Association projects 2026 health and long-term-care costs for Alzheimer's and other dementias at $409 billion, with Medicare and Medicaid covering $263 billion, or 64%. Apply early so your family keeps its share of that protection.
- Ask the facility business office which Medicaid group applies and what application date they have on file
- File promptly after a hospital discharge, fall, or sharp change in memory or function
- Keep hospital records, nursing-home bills, and dates of care for the months before filing
- Ask a local aging office or legal aid program to review the application for missing proof
