Every spring, millions of seniors take a second look at their Medicare Part B enrollment status—and March is the month when the urgency really kicks in. That’s because March 31 marks the final day of Medicare’s General Enrollment Period, the last chance for many older adults to sign up for Part B if they missed their initial window.
Missing this deadline can lead to lifelong penalties, delayed coverage, and unexpected medical bills that hit at the worst possible time. Even seniors who think they’re already covered often discover gaps, billing issues, or enrollment mistakes that need attention before the month ends. Here is what they need to know.
