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Understanding Medicare Basics

Medicare is a federal health insurance program for:

  • People age 65 and older
  • Certain younger people with disabilities
  • People with End-Stage Renal Disease (ESRD)

The Centers for Medicare & Medicaid Services (CMS) manages Medicare. The program has multiple parts that cover different types of care.

Part A covers inpatient hospital stays, skilled nursing facility care, hospice, and limited home health services.

Most people get Part A without paying a premium if they worked and paid Medicare taxes for at least 10 years.

Part B covers doctor visits, outpatient care, preventive services, and durable medical equipment.

You pay a monthly premium for Part B. It also includes deductibles and coinsurance.

Medicare Advantage plans are offered by private insurers approved by Medicare. These plans bundle Part A and Part B coverage, and usually include Part D (prescription drugs) plus extra benefits like dental, vision, and fitness programs.

Medicare Advantage plans may have provider networks and different cost structures than Original Medicare.

Part D helps you pay for prescription medications. You can get Part D as a standalone plan or as part of a Medicare Advantage plan.

Part D includes premiums, deductibles, and copays. Each plan has coverage tiers and a list of covered drugs called a formulary.

FeatureMedicareMedicaid
Who QualifiesPeople age 65 and older, certain people with disabilitiesLow-income individuals and families
Managed ByFederal government (CMS)State and federal governments
Income-Based?NoYes
CoverageHospital, medical, drug, and Advantage plansBroad medical coverage, including long-term care
Can You Have Both?Yes — called dual eligibilityYes — Medicaid may cover Medicare costs

Medicare is your federal health insurance starting at age 65. It has different parts for hospital care, medical services, prescription drugs, and bundled coverage. Medicaid is a state-run program for people with low income. Some people qualify for both programs, which unlocks extra help and specialized plans.