Medicare Eligibility
Review eligibility by age, disability, ESRD, ALS, citizenship, and residency.
Age 65 is the common route
Medicare generally serves people age 65 or older who meet citizenship or residency requirements. Medicare distinguishes eligibility from whether enrollment happens automatically and whether Part A is premium-free. Social Security benefits started before 65 can affect automatic enrollment; someone delaying retirement benefits may need to apply actively. Confirm your particular Part A and B start dates rather than treating the 65th birthday as proof of coverage.
Official source: Medicare: Get started ↗ · Medicare: How to sign up ↗ · SSA: When to sign up ↗
Disability can create earlier eligibility
A person under 65 receiving qualifying Social Security disability benefits generally gets Medicare after 24 months of disability benefits, with certain exceptions. Medicare’s official path checker provides the applicable timing. Your welcome materials and Medicare card state the dates; when disability and an employer plan overlap, coordination of benefits may differ from the ordinary age-65 employer rule.
Official source: Medicare: Eligibility paths ↗ · Medicare: Who pays first ↗
ALS and kidney failure use different paths
Medicare says people with ALS may get Medicare automatically when disability benefits start rather than after the usual 24-month wait. End-Stage Renal Disease may qualify someone requiring regular dialysis or a kidney transplant, but ESRD eligibility, coverage dates and coordination rules are distinct and should be checked through Medicare’s ESRD instructions. Do not apply the age-65 or ordinary disability calendar to these cases.
Official source: Medicare: Eligibility paths ↗ · Medicare: ESRD eligibility ↗
Premium-free Part A is not automatic for everyone
Most beneficiaries have no Part A monthly premium after sufficient Medicare-tax work history, often through their own work or a spouse’s. Those without enough credits may need to buy Part A; Medicare lists $311 or $565 monthly for 2026 depending on qualifying work history. Income, work history and residence should be verified with SSA before assuming a specific premium or enrollment route.
Official source: Medicare: Current costs ↗ · SSA: Sign up for Medicare ↗
Private-plan eligibility comes later
An Advantage enrollment requires both Part A and Part B and residence in the plan service area. A separate Part D drug plan generally requires Part A or Part B. Being eligible for Medicare does not establish eligibility for a specific local plan or its extra benefits. Check A/B effective dates, qualifying election period, ZIP code and any plan-specific special eligibility before submitting an application.
Official source: Medicare: Joining a plan ↗ · Medicare: When coverage starts ↗