Medicare is the federal health insurance program for individuals age 65 or older and some disabled individuals under age 65. It is administered by the Centers for Medicare and Medicaid Services (CMS).
You become eligible for Medicare on the first day of the
month in which you turn age 65.
If your birthday is on the 1st of the month, you become
Medicare-eligible the first day of the prior month.
If you are disabled, you may get Medicare coverage
automatically after you have received Social Security
Disability Income (SSDI) benefits for two years.
Verify timing with Medicare for your specific situation, as
Social Security disability eligibility dates may vary.