Missing an enrollment deadline
Enrollment windows can be strict. Delays may create gaps or penalties unless an exception applies.
Ignoring prescription coverage
Formularies and pharmacy networks can change what you pay. Review them even if the medical side of a plan looks attractive.
Assuming last year is this year
Plan details and Medicare costs can change annually. Recheck important facts before relying on last year’s information.
Choosing from a postcard
Mailers and TV ads are marketing, not a comparison. Verify doctors, drugs, and total cost before you enroll.
Related Medicare topics
Important: We are not affiliated with or endorsed by the U.S. Government or the federal Medicare program. This page is general education. Availability, eligibility, costs, and benefits can vary by plan and area.