Medicare and Medi-Cal both pay for some senior care — but they cover very different things. Here's how each program works in California and which one pays for assisted living.
By Patricia Nguyen, CDP · June 30, 2026
Medicare is federal health insurance for people 65 and older (and certain younger people with disabilities). It covers hospital stays, doctor visits, outpatient services, and — in limited circumstances — short-term skilled nursing or rehabilitation. Medicare is not a long-term care program. Crucially, Medicare does not pay for assisted living (RCFE) or ongoing custodial care at home.
Medi-Cal is California's Medicaid program, jointly funded by the state and federal government. Unlike Medicare, Medi-Cal is means-tested — eligibility depends on income and assets. For seniors, Medi-Cal can cover long-term care services including nursing home care and, through specific waivers like the Medi-Cal Assisted Living Waiver (ALW), the care portion of costs inside a licensed RCFE. In San Diego County, Medi-Cal is administered through the County Health & Human Services Agency (HHSA).
Medicare Part A covers inpatient hospital care and — after a qualifying three-day hospital stay — up to 100 days of skilled nursing facility (SNF) care per benefit period. The first 20 days are fully covered; days 21–100 require a significant daily copay (around $204 per day in 2026). After day 100, Medicare coverage ends entirely. This is where many families are caught off-guard: a parent is discharged from Sharp Memorial, Scripps Mercy, or UCSD Medical Center to a skilled nursing facility, and 100 days later the family suddenly faces the full private-pay cost.
Medicare Advantage (Part C) plans may include some extra benefits — dental, vision, hearing — but they do not expand Medicare's core limitation: they do not pay for ongoing assisted living or custodial care. Medicare home health benefits (skilled nursing or therapy at home) are also time-limited and require a physician order and a documented skilled need.
For seniors who qualify financially, Medi-Cal covers nursing home care on an ongoing basis at a licensed skilled nursing facility (SNF). California does not use a spousal impoverishment estate-recovery approach for nursing home costs the same way as some states, but Medi-Cal does maintain an estate-recovery program, so families should consult an elder-law attorney if home ownership is involved.
The Medi-Cal Assisted Living Waiver (ALW) extends coverage into licensed RCFEs, paying for personal care, medication management, and support services — but not room and board. San Diego County participates in the ALW program, though slots are limited and a wait list is common. IHSS (In-Home Supportive Services) is another Medi-Cal program that pays for in-home care for eligible seniors who live at home or with family. To apply or get screened, contact San Diego County Aging & Independence Services (AIS) at 800-339-4661.
Some San Diego seniors qualify for both Medicare and Medi-Cal — a status called 'dual eligible' or 'Medi-Medi.' For these individuals, Medicare pays first (primary payer) and Medi-Cal covers many of the copays, premiums, and cost-shares that Medicare leaves behind. Dual-eligible seniors have access to specialized managed-care plans in California (Cal MediConnect or Dual Special Needs Plans), which aim to coordinate the two programs.
Dual eligibility doesn't automatically pay for assisted living — the ALW waiver must still be applied for separately. But it does reduce out-of-pocket medical costs significantly, which can free up income to contribute toward room and board in an RCFE. A local senior advisor can help families understand how dual eligibility interacts with a specific facility's billing before making a placement decision.
The most common planning mistake is assuming Medicare will pay for an extended stay in an assisted living or skilled nursing facility. Once a senior has been stabilized and no longer needs a 'skilled' level of care, Medicare coverage ends — often after a few weeks, not the full 100 days.
Proactive steps make a real difference: applying for Medi-Cal before a crisis (not during), getting on the ALW wait list early if RCFE placement is likely, understanding what IHSS covers while a senior is still at home, and connecting with the San Diego County Area Agency on Aging (AAA) at 800-339-4661. These programs are free to apply for and are administered locally — San Diego seniors don't need to contact a national call center. A free local advisor can walk through which program applies to your family's specific situation at no cost.
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