Check your Medicare eligibility
Decide whether you need Original Medicare, Medicare Advantage, or both
Gather your Social Security number, date of birth, and work history
Apply online at SSA.gov/medicare
Apply by phone at 1-800-772-1213
Apply in person at your local Social Security office
If already receiving Social Security or Railroad Retirement benefits, wait for automatic enrollment notice
Review your Medicare Initial Enrollment Period dates
Enroll in Part A and Part B if needed
Choose a Part D prescription drug plan if desired
Compare Medicare Advantage plans if you want Part C
Keep copies of all application and enrollment records
Watch for your Medicare card in the mail
Contact Social Security or Medicare if your application status changes or is delayed