October 19, 2026 - KFF Answers Medicare Questions:

I am turning 65 in a few months and want to go on Medicare. Will I be automatically enrolled in Parts A and B or do I need to sign up?

It depends. If you’re receiving benefits from Social Security or the Railroad Retirement Board (RRB) at least four months before you turn 65, you do NOT need to sign up; you’ll automatically get Part A and Part B starting the first day of the month that you turn 65. You should receive your Medicare card in the mail three months before your 65^th birthday. If you are NOT receiving benefits from Social Security or the RRB at least four months before you turn 65, you will need to sign up with Social Security to get Parts A and B. To sign up to receive Parts A and B, you can enroll online with Social Security, call Social Security at 1-800-772-1213, or visit your local Social Security office.

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While every effort has been made to provide accurate and up-to-date information in these FAQs, people should contact Medicare, Social Security, State Health Insurance Assistance Programs (SHIP), or companies offering Medicare Advantage and Medicare Part D plans and Medigap policies directly for guidance on individual circumstances.

Source: KFF