You may sign up for Medicare during from 3 months before your 65th birthday to 3 months after your birthday. Each year, you may also enroll if necessary or modify your plan during five other periods.

When you become eligible, there are several points when you can sign up for each of Medicare’s parts.

For most people, signing up for Medicare occurs during a 7-month initial enrollment period (IEP). The IEP starts 3 months before you…