Mastering Medicare Enrollment Periods: A Simple Guide for Clients

Written By Christopher Strange

Navigating Medicare Enrollment Periods: What You Need to Know

Medicare enrollment can be confusing, but understanding the key periods can help you avoid costly mistakes. Here's a simple breakdown:

  • Initial Enrollment Period (IEP): This seven-month window begins three months before your 65th birthday, includes your birthday month, and ends three months afterward. This is your first opportunity to enroll in Medicare Parts A and B.

  • Annual Enrollment Period (AEP): From October 15 to December 7 each year, you can change your Medicare Advantage plan or Part D prescription drug plan.

  • Special Enrollment Period (SEP): If you experience certain life events, like retiring or losing employer coverage, you may qualify for this enrollment window.

  • Open Enrollment Period (OEP): Running from January 1 to March 31 each year, this period allows Medicare Advantage enrollees to make one change—whether switching to a different Medicare Advantage plan or returning to Original Medicare. However, you cannot add a Part D plan unless you're returning to Original Medicare during this time.

By knowing these periods, you can ensure seamless coverage and avoid penalties.

Christopher Strange