You may enroll in a Medicare Prescription Drug plan during the following times:

• Initial Enrollment Period (IEP) – This is the 7 month period, including the 3 months before, the month of, and the 3 months after you are first eligible to enroll in Medicare. This period may surround the month you turn 65 or the 25th month you have collected disability.
• Open Enrollment Period (OEP) – During the period between October 15 to December 7 each year, Medicare enrollees can make changes to their coverage. Enrollees can select a new Prescription Drug Plan or switch between plans during this period. New coverage selections will go into effect on January 1.
• Annual “Disenrollment” Period – January 1 to February 15th each year, you may disenroll from a Medicare Advantage plan and return to Original Medicare If your Medicare Advantage plan provided drug coverage, you are eligible to enroll in a PDP during this time.
• General Enrollment Period (GEP) – If you did not sign up when you were originally eligible, you may sign up for Original Medicare during January to March each year. If you sign up for Part A and Part B during GEP, you can sign up for Medicare Advantage through June. Coverage will begin on July 1 of that year.
• Other Special Enrollment Period (SEP) – You may sign up for Medicare PDP plan during other Special Enrollment Periods. Visit gov for more Special Enrollment Period options.