What is a Special Enrollment Period (SEP)?

Updated on: October 24, 2018

Originally posted on: July 16, 2015

A Special Enrollment Period (or SEP) are periods outside the Initial Enrollment Period (IEP) or the Annual Enrollment Period (AEP) when you may select a plan or change your current plan in certain circumstances. Examples of situations that may qualify you for an SEP include your losing creditable coverage, moving to a new service area or your existing plan no longer offers Part D coverage. You will need to call Medicare to find out if you are eligible for an SEP.