Medicaid vs Medicare — what's the difference?

Turning 65 makes you eligible for Medicare — if you've worked enough quarters, or if your spouse has. It does not automatically give you Medicaid. Medicaid is a separate program with separate income and asset rules, and those rules vary by state.

If your income is modest in retirement, it's worth applying for Medicaid (or for a Medicare Savings Program, which is a Medicaid pathway that pays your Medicare premiums). Many seniors who would qualify never apply because they assume they don't.

I saw both at SSA — SSDI cases and SSI cases sat in different cabinets, but they often involved the same person at different points. Here's the cut: SSDI gets you Medicare after a 24-month waiting period. SSI gets you Medicaid in most states immediately on approval.

If you're on SSDI and your income is low, you may qualify for both eventually — Medicare on the SSDI side, Medicaid on the income side.

Medicare covers up to 100 days of skilled nursing facility care after a qualifying hospital stay. After day 100, Medicare stops paying. Medicaid is the program that pays for ongoing long-term nursing-home care — but only for people who qualify under their state's asset and income rules.

This is the part where families get blindsided. The 100-day Medicare clock starts after the hospital, runs out, and the family suddenly faces nursing-home bills with no coverage. Medicaid long-term care is the answer, but it has its own rules — including a five-year look-back at asset transfers.

If you're researching long-term care Medicaid specifically, that's its own page. → Long-term care Medicaid (coming soon)

There are Medicare Advantage plans designed specifically for people who have both Medicare and Medicaid. They're called Dual Special Needs Plans, or D-SNPs. They coordinate Medicare and Medicaid benefits inside one plan and often include extras like dental, vision, and transportation that Original Medicare doesn't cover.

You don't have to switch — you can keep your current plan and let Medicaid coordinate with it as the secondary payer. But during the next enrollment period, it's worth asking a SHIP counselor whether a D-SNP would simplify things for you.

If you have Medicare and your income is modest, two doors open: Medicare Savings Programs (which are state-administered Medicaid pathways that pay your Medicare premiums and cost-sharing) and Extra Help (which lowers Part D prescription drug costs to near zero).

The Medicare Savings Programs come in three tiers — QMB, SLMB, and QI — each with different income limits. SSA administers Extra Help directly. Both are worth checking even if you're not sure you qualify, because the income limits are higher than people expect.

Medicare for under-65 generally requires SSDI (after a 24-month waiting period) or specific conditions like ALS or end-stage renal disease. Without one of those, the door is Medicaid — if your income qualifies under your state's rules.

In states that expanded Medicaid, working-age adults qualify based on income alone (around 138% of the federal poverty level). In non-expansion states, the rules are tighter and there can be a coverage gap. Either way, the application is at your state Medicaid agency or Healthcare.gov.

Helping a parent? Here's the order I'd work in: confirm Medicare first — if they're 65+ and on Social Security, they're probably already enrolled. If they're 65+ and not yet enrolled, the door is SSA at ssa.gov/medicare or 1-800-772-1213. Then look at Medicaid as a separate question — your parent's state Medicaid agency runs that side, and 2-1-1 is the helpline that can point you to it.

If both apply, your parent is a dual-eligible. Free SHIP counselors at 1-877-839-2675 can walk through both at once. They are not selling anything — they're funded specifically to help.

If none of the above sounds right — you're an immigrant on a complicated status, you have employer coverage and you're navigating coordination, you're caring for a child with disabilities, you've been denied and you're appealing — these are all questions worth asking a free counselor.

For Medicare-side complexity, SHIP at 1-877-839-2675. For Medicaid-side complexity, your state Medicaid agency or 2-1-1. For both at once, SHIP can usually triage. None of these charge.