Check if you’re already enrolled automatically in Medicare Part A and Part B
If not automatically enrolled, apply during your Initial Enrollment Period
Apply online at the Social Security website
Call Social Security to apply by phone
Visit your local Social Security office to apply in person
Have your Social Security number, birth certificate, and proof of U.S. citizenship or lawful presence ready
Have your current health insurance information ready if you have coverage through work
Decide whether to enroll in Part A only or both Part A and Part B
Confirm whether you need to pay a Part B premium
Review your Medicare card after enrollment
Keep track of your effective date for coverage