Medicare and Medicaid have existed since 1965, and the confusion between the two is common. Both cover health care costs, but for most people, that’s where the similarities end.
Both programs have specific rules, deadlines, and cost structures. Understanding which one applies to you, and how to use them together if you qualify for both, puts you in a better position before you ever need care.
What Is Medicare?
Medicare is a federal health insurance program for people 65 and older. It also extends to younger individuals with a qualifying disability or specific medical conditions, including end-stage renal disease and ALS.
The program has four parts. Parts A and B are administered by the federal government. Parts C and D are federally governed but delivered through private insurance companies.
Who Qualifies for Medicare
People 65 and older are eligible for Medicare regardless of income. Younger individuals may also qualify if they have a qualifying disability or a specific medical condition such as end-stage renal disease or ALS.
What Medicare Covers
Parts A and B have consistent, nationwide coverage. Parts C and D vary by plan, provider, and location.
- Part A covers inpatient hospital stays, skilled nursing facility care, and some home health services.
- Part B covers outpatient care, doctor visits, preventive services, and durable medical equipment.
- Part C (Medicare Advantage) is an all-in-one option offered by private insurers that bundles Parts A, B, and D. Many plans include additional benefits such as dental, vision, hearing, and fitness.
- Part D covers prescription drugs, either as a standalone plan or as part of a Medicare Advantage plan.
Medicare Costs
Medicare costs depend on enrollment timing, selected coverage, and the services used throughout the year. Expenses can include premiums, deductibles, copays, and coinsurance.
For people with limited income, four Medicare Savings Programs are available. Depending on the program, these can cover Part B premiums and, in some cases, Part A and Part B deductibles, coinsurance, and copayments.
Read More: HDHP vs PPO: Which Health Plan Saves You More Money?
What Is Medicaid?
Medicaid is a joint federal and state health program for people with limited income and resources.
Each state administers its own version of the program and sets its own eligibility rules, though all states must follow federal guidelines for required benefits.
Separate Medicaid programs exist for specific groups, including children, pregnant women, seniors, and people with disabilities.
Who Qualifies for Medicaid
Medicaid eligibility is based on income and household resources. Each state sets its own income thresholds.
In states that expanded Medicaid under the Affordable Care Act (ACA), adults with incomes up to 138% of the Federal
Poverty Level are generally eligible to enroll.
What Medicaid Covers
Medicaid includes both federally mandated benefits and optional benefits that each state may choose to add.
Mandatory coverage includes inpatient and outpatient hospital care, physician services, lab tests, and X-rays.
Optional benefits vary by state and can include prescription drugs, dental, vision, and physical therapy.
Medicaid and Long-Term Care
Medicaid covers nursing home care and personal care services for eligible individuals. For people who need ongoing long-term care, Medicaid is the primary source of coverage.
Key Differences Between Medicare and Medicaid
| Medicare | Medicaid | |
|---|---|---|
| Eligibility | Adults 65+, or younger with a qualifying disability. No income requirement. | Any age. Based on low income and limited resources. |
| Coverage | Hospital care, medical services, prescription drugs. Part C bundles all three and may include dental, vision, and hearing. | Hospital care, doctor visits, lab work, and X-rays required in all states. Dental, vision, and long-term care vary by state. |
| Costs | Premiums, deductibles, copays, and coinsurance apply. Part B premiums are deducted from Social Security benefits. | Costs vary by state and income. Some enrollees pay little to nothing out of pocket. |
| Administration | Federally administered. Parts C and D delivered through private insurers. | Jointly funded by federal and state governments. Each state manages its own program. |
| Enrollment | Auto-enrolled at 65 through Social Security. Others enroll during the Initial Enrollment Period. Late enrollment can result in permanent premium penalties. | Open year-round. Apply through your state Medicaid office or Healthcare.gov. |
Can You Have Both? (Dual Eligibility)
Yes. People who qualify for both programs are called “dual eligible.” Medicare covers health care services, and Medicaid provides financial assistance, so the two complement each other to cover most health care costs.
Who Qualifies for Both
Low-income seniors, people with disabilities, and individuals with end-stage renal disease or ALS may qualify for both programs at the same time.
How Dual Coverage Works
Medicare pays first, then Medicaid covers the remaining costs, including premiums and out-of-pocket expenses.
Dually eligible individuals may also qualify for a Dual Special Needs Plan (D-SNP), a Medicare Advantage plan designed specifically for people enrolled in both programs.
Benefits of Being Dually Eligible
Enrolling in both programs reduces overall health care costs.
Medicaid can cover Medicare premiums, deductibles, copays, and coinsurance, which makes a notable difference for low-income enrollees. The two programs also provide more comprehensive coverage.
How to Choose the Right Coverage
About 8%, or 27 million people, of the U.S. population don’t have health insurance. If you’re uninsured, here’s how to choose your coverage.
For Seniors and Retirees
Medicare is the default starting point at 65. Most people begin with Original Medicare: Part A for hospital care, Part B for medical services, and Part D for prescription drugs.
If Original Medicare leaves gaps in coverage, Medicare Supplement Insurance (Medigap) is available. Enroll in Medigap during the same period you sign up for Medicare.
For Low-Income Individuals and Families
Medicaid eligibility rules differ by state, so checking with your state’s Medicaid office is the most reliable first step. People with income at or below 138% of the Federal Poverty Level may qualify.
If you lose job-based coverage, many states allow immediate Medicaid enrollment outside of standard enrollment periods.
Planning for Long-Term Care Costs
For people who anticipate extended nursing home care or ongoing personal care services, Medicaid is the more relevant program to pursue.
Medicare covers skilled nursing facility care for up to 100 days following a qualifying hospital stay and doesn’t extend beyond that.
Income Planning Considerations
Income affects both programs differently. For Medicaid, it determines eligibility. Medicare influences Part B and Part D premiums through income-related adjustments.
People with limited income may qualify for Medicare Savings Programs, which help cover premiums and cost-sharing expenses.
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Frequently Asked Questions
What is the highest income to qualify for Medicaid?
In states that expanded Medicaid under the ACA, the income limit is 138% of the Federal Poverty Level, which is approximately $20,783 for an individual in 2025. Income limits vary by state in non-expansion states, so the threshold can be lower depending on where you live.
Is it better to be on Medicare or Medicaid?
Neither program is better than the other. The right option depends on your coverage needs and eligibility.
Is Medicare free after 65?
Medicare Part A is premium-free for most people who have worked and paid Medicare taxes for at least 10 years. Part B, however, requires a monthly premium.
Conclusion
Medicare and Medicaid serve different populations, and your eligibility for each depends on your age, income, and health needs. Checking both programs gives you a view of what coverage you can access.
For many Americans, enrolling in both provides the most comprehensive and affordable health care coverage available.
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