Medicare vs. Medicaid - What's the Difference?

Every year, millions of Americans search for a clear answer to one of the most common healthcare questions in the United States- What is the difference between Medicare and Medicaid? The two programs sound almost identical, and both are government-funded health coverage options — but they serve entirely different populations, operate under different rules, and cover different services. Confusing them can lead to missed benefits, billing errors, or gaps in care.

This guide breaks down everything you need to know about Medicare vs. Medicaid in plain language — who qualifies, what each program covers, how much it costs, and what happens when someone qualifies for both. Whether you are a senior approaching 65, a caregiver, or a home care agency owner navigating payer sources, this is the definitive comparison you need in 2026.

What Is Medicare?

Medicare is a federal health insurance program administered by the Centers for Medicare & Medicaid Services (CMS). It is designed primarily for people aged 65 and older, but also extends coverage to younger individuals with qualifying disabilities or specific medical conditions.

As of 2024, nearly 68 million Americans were enrolled in Medicare. Because it is a federal program, Medicare benefits and rules are uniform across all 50 states — your coverage in Florida is identical to your coverage in Alaska.

Who Qualifies for Medicare?

You automatically qualify for Medicare when you turn 65. If you are under 65, you may still qualify if you meet any of the following criteria:

·         People aged 65 or older, regardless of income

·         People under 65 with certain disabilities

·         People with End-Stage Renal Disease (ESRD) or ALS (Lou Gehrig’s disease)

Because Medicare is a federal program, its rules and benefits are the same across all 50 states.

The Four Parts of Medicare Explained

Medicare is organized into four distinct parts, each covering a different category of care:

• Part A (Hospital Insurance): Covers inpatient hospital stays, skilled nursing facility care (short-term), hospice care, and some home health services. Most people who have paid Medicare payroll taxes for at least 10 years pay no monthly premium for Part A.
• Part B (Medical Insurance): Covers outpatient services, doctor visits, preventive care, lab tests, and durable medical equipment. In 2025, the standard monthly premium for Part B was $185, with a $257 annual deductible.
• Part C (Medicare Advantage): A private insurance alternative that bundles Parts A and B, often including dental, vision, hearing, and prescription drug coverage.
• Part D (Prescription Drug Coverage): Offered through private insurers under federal contract, Part D covers the cost of prescription medications.

What Medicare Does NOT Cover

It is critical to understand what Medicare excludes. Routine dental care, hearing aids, vision exams, and — most significantly — long-term custodial care in nursing homes are not covered by Medicare. This is one of the biggest distinctions between Medicare and Medicaid.

What Is Medicaid?

Medicaid is a joint federal and state assistance program that provides healthcare coverage to individuals and families with low income and limited financial resources. Unlike Medicare, Medicaid eligibility and benefits vary significantly depending on the state you live in.

Today, more than 76 million Americans are enrolled in Medicaid — more than any private insurance option covers. This makes Medicaid the single largest health coverage program in the country by enrollment.

Who Qualifies for Medicaid?

Medicaid eligibility is based primarily on income level, though states set their own specific thresholds. Generally, Medicaid covers:

• Low-income adults and families
• Children and pregnant women
• Seniors with limited income and assets
• People with physical or intellectual disabilities
• Individuals receiving Supplemental Security Income (SSI)

Since the Affordable Care Act (ACA), many states have expanded Medicaid coverage to include adults earning up to 138% of the federal poverty level (FPL). However, not every state has opted into this expansion.

What Medicaid Covers

All state Medicaid programs are federally required to cover a core set of services, including inpatient and outpatient hospital services, physician services, laboratory and imaging services, and home health services. Many states go beyond these mandated minimums and also cover:

• Prescription drugs
• Dental and vision care
• Physical and occupational therapy
• Non-emergency medical transportation
• Home and community-based services (HCBS)
• Long-term nursing home care — the most significant coverage advantage over Medicare

For home care and assisted living agency owners, Medicaid is often the primary payer source. Understanding state-specific waiver programs, billing compliance, and documentation requirements is essential to operating a financially sustainable agency.

Medicare vs. Medicaid: Side-by-Side Comparison

How Medicare and Medicaid Are Funded

The funding structures of these two programs reflect their different administrative models.

Medicare is funded through a combination of federal payroll taxes (the Medicare tax withheld from wages), monthly premiums paid by enrollees, and general federal revenue. It operates from two federal trust funds managed by the U.S. Treasury.

Medicaid is funded jointly by the federal government and each individual state. The federal government's contribution is calculated using the Federal Medical Assistance Percentage (FMAP), which varies based on each state's per capita income. Wealthier states receive less federal matching, while lower-income states receive more.

Important 2026 Update: Recent federal legislative changes — specifically the "One Big Beautiful Bill Act" signed in July 2025 — are reducing the amount of federal Medicaid funding flowing to states. As a result, millions of Medicaid beneficiaries could potentially face coverage losses or reduced benefits in the coming years. For agency owners and care providers, staying current on state-level Medicaid policy changes is more important than ever.

Can You Have Both Medicare and Medicaid?

Yes — and it is more common than most people realize. Individuals who qualify for both programs are known as dual-eligible beneficiaries.

Approximately 12.5 million Americans are dual eligible, meaning they qualify for both Medicare and Medicaid simultaneously

Here is how dual coverage works in practice:

• Medicare pays first for all covered medical services — hospital stays, physician visits, diagnostics, and skilled nursing care
• Medicaid pays second, covering costs that Medicare does not — including premiums, deductibles, copayments, and long-term custodial care

This combination provides the most comprehensive and most affordable coverage available under any US government health program. Many dual-eligible individuals can access a Dual Special Needs Plan (D-SNP) through Medicare Advantage, which coordinates both benefits under a single plan.

Why This Distinction Matters for Home Care Agencies

For professionals operating home care agencies, assisted living facilities, or home health businesses, understanding the difference between Medicare and Medicaid is not just academic — it directly affects how you bill, what services you can offer, and which regulatory frameworks govern your operations.

• Medicare-certified home health agencies must meet strict federal conditions of participation, provide skilled nursing and therapy services, and bill through CMS using OASIS documentation
• Medicaid waiver programs fund non-medical home care and personal care services, with eligibility and reimbursement rates determined at the state level
• Dual-eligible clients require coordination between both payers, and billing errors are among the leading causes of audit risk for agencies serving this population

If you are building or expanding a home care or assisted living agency that accepts Medicaid or coordinates with Medicare, professional compliance and operational guidance is essential from day one.

Medicare.gov

Common Myths — Debunked

Myth 1: Medicare and Medicaid are the same thing.

Fact: They are two separate programs with different purposes and eligibility criteria.

Myth 2: Medicare is only for low-income people.

Fact: Medicare is available to everyone who meets age or disability requirements, regardless of income.

Myth 3: Medicaid is the same nationwide.

Fact: Medicaid varies by state, and each state decides who qualifies and what benefits are offered.

Myth 4: Medicare covers long-term care.

Fact: It does not. Only Medicaid covers long-term custodial care in most cases.

Myth 5: You can’t have both.

Fact: Many people qualify for both Medicare and Medicaid, especially older adults with low income.

Medicare and Medicaid were both established in 1965 to protect Americans who face the greatest barriers to healthcare access. Six decades later, they remain the backbone of the US healthcare safety net — but they do very different jobs.

Medicare is age-based federal health insurance for seniors and people with disabilities. Medicaid is income-based state-federal assistance covering a broader population, with deeper benefits for long-term and community-based care. Understanding which program applies to your situation — or your clients' situations — is the foundation of smart healthcare planning and compliant agency operations.

For agency owners looking to build Medicaid-ready, Medicare-compliant home care operations, explore our full suite of home care consulting resources and policy documentation.