Medicaid vs. Medicare: What's the Difference and Can Your Parent Have Both?

Medicaid and Medicare sound almost identical, and people confuse them constantly. Even healthcare providers sometimes use the names interchangeably. But they are fundamentally different programs — different eligibility rules, different coverage, different funding sources, and different government agencies running them. Understanding the distinction matters because your parent might qualify for one, the other, or both, and each path leads to very different coverage and costs.

Here's the straightforward breakdown.

Medicare: federal health insurance based on age or disability

Medicare is a federal program run by the Centers for Medicare & Medicaid Services (CMS). It provides health insurance to:

• People age 65 and older — regardless of income or assets
• People under 65 with certain disabilities — after receiving Social Security Disability Insurance (SSDI) for 24 months
• People with End-Stage Renal Disease (ESRD) or ALS (Lou Gehrig's disease) — at any age

Medicare eligibility is based primarily on age and work history — not income. A millionaire and a person living on Social Security both qualify for the same Medicare benefits when they turn 65.

Medicare has four parts:

• Part A — hospital insurance (inpatient stays, skilled nursing, hospice)
• Part B — medical insurance (doctor visits, outpatient care, preventive services)
• Part C — Medicare Advantage (private plans that bundle A, B, and usually D)
• Part D — prescription drug coverage

Medicare beneficiaries pay premiums ($185/month for Part B in 2026), deductibles, and coinsurance. Original Medicare has no annual out-of-pocket cap, which is why many people buy supplemental Medigap insurance.

Medicaid: state-run assistance based on income

Medicaid is a joint federal-state program that provides health coverage to people with limited income and resources. Each state runs its own Medicaid program with its own name (Medi-Cal in California, MassHealth in Massachusetts, etc.), its own eligibility rules, and its own covered services — all within federal guidelines.

Medicaid eligibility is based on:

• Income — typically below 138% of the federal poverty level in states that expanded Medicaid under the ACA, though exact thresholds vary by state and category
• Assets/resources — some states have asset tests for certain populations
• Category — states have different eligibility groups (children, pregnant women, elderly, disabled, etc.)

For elderly adults (65+), Medicaid eligibility typically requires very low income AND limited assets. The specifics vary significantly by state, but generally your parent's countable assets must be below roughly $2,000 (individual) to qualify for full Medicaid benefits in many states. The family home, one vehicle, and certain other assets are usually exempt.

Medicaid covers things Medicare does not:

• Long-term care — nursing home stays, home and community-based services
• Dental, vision, and hearing — coverage varies by state but often more comprehensive than Medicare
• Personal care assistance — help with daily activities like bathing and dressing
• Transportation to medical appointments

Most Medicaid beneficiaries pay little to nothing out of pocket — no premiums, no deductibles, and minimal or no copays.

The key differences at a glance

Dual eligibility: having both Medicare and Medicaid

Your parent can qualify for both programs simultaneously. This is called "dual eligibility," and approximately 12 million Americans are dually eligible. This typically happens when someone who is 65+ (qualifying them for Medicare) also has low enough income and assets to qualify for Medicaid.

Dual eligibility provides the most comprehensive coverage available:

• Medicare serves as the primary insurer, covering hospital stays, doctor visits, and other medical services
• Medicaid serves as secondary, covering the costs that Medicare doesn't — including Medicare premiums, deductibles, coinsurance, long-term care, dental, vision, and hearing

For a dual-eligible parent, the combination means:

• Part B premiums may be paid by Medicaid
• Medicare deductibles and coinsurance may be covered by Medicaid
• Long-term nursing home care is covered (through Medicaid)
• Prescription drug costs are minimized (eligible for Medicare Extra Help automatically)

Medicare Savings Programs

Even if your parent doesn't qualify for full Medicaid, they may qualify for a Medicare Savings Program (MSP) — a state Medicaid program that helps pay Medicare costs. There are four levels:

QMB (Qualified Medicare Beneficiary): Pays Part A premium, Part B premium, and all Medicare deductibles and coinsurance. Income limit: approximately 100% of the federal poverty level.

SLMB (Specified Low-Income Medicare Beneficiary): Pays the Part B premium only. Income limit: approximately 120% of the federal poverty level.

QI (Qualifying Individual): Pays the Part B premium only. Income limit: approximately 135% of the federal poverty level.

QDWI (Qualified Disabled and Working Individual): Pays the Part A premium for certain disabled working individuals.

MSP eligibility automatically qualifies your parent for Medicare Extra Help (the Part D low-income subsidy), which drastically reduces prescription drug costs.

When the distinction matters most: long-term care

The most consequential difference between Medicare and Medicaid for aging families is long-term care coverage.

Medicare does not cover long-term nursing home stays. It covers up to 100 days of skilled nursing facility care after a qualifying hospital stay — and even that requires a 3-day inpatient hospitalization and a skilled care need. Once the skilled care need ends or 100 days are reached, Medicare stops paying. Custodial care — help with bathing, dressing, eating, and other daily activities that make up the bulk of nursing home care — is never covered by Medicare.

Medicaid is the primary payer for long-term nursing home care in the United States. Medicaid covers nursing home stays for qualified individuals with essentially no time limit. It's the program that prevents families from being financially destroyed by the $8,000-$10,000/month cost of nursing home care.

But qualifying for Medicaid long-term care coverage requires meeting strict financial criteria. Many families face a painful "spend down" process — your parent must deplete most of their assets before Medicaid kicks in. The rules around asset protection, spousal impoverishment protections, look-back periods for asset transfers, and Medicaid estate recovery are complex and state-specific.

This is an area where consulting an elder law attorney is strongly advisable. The rules around Medicaid planning are intricate, the stakes are high, and mistakes can be costly.

How to apply

Medicare: Apply through the Social Security Administration — online at ssa.gov, by phone at 1-800-772-1213, or at a local Social Security office. Most people are automatically enrolled when they turn 65 if they're receiving Social Security benefits.

Medicaid: Apply through your parent's state Medicaid agency. Each state has its own application process, available online, by phone, or in person at a local Medicaid office. You can find your state's Medicaid agency at Medicaid.gov.

For both (dual eligibility): Apply for each program separately. Medicare enrollment goes through Social Security; Medicaid enrollment goes through the state. Your state's SHIP program (State Health Insurance Assistance Program) can help coordinate the applications and determine what your parent qualifies for.

Getting the full picture

Whether your parent qualifies for Medicare alone, Medicaid alone, or both, understanding the distinction is the first step toward making sure they have the coverage they actually need — especially for the services (long-term care, dental, vision) that Medicare alone doesn't address.

Our Medicare Enrollment Guide includes a benefits screening checklist that helps families identify every program their parent may qualify for — Medicare, Medicaid, Medicare Savings Programs, Extra Help, and state-specific assistance programs — along with the application steps and documentation needed for each.