Momentous changes are coming to Medicare in 2025. As seniors face the complicated task of researching, comparing and selecting a Medicare plan for the upcoming year, expert guidance from Medicare professionals is more important than ever.To help you navigate the complexity of Medicare supplemental insurance, Advance Media New York will host a free webinar and Q&A with expert panelists this week. Guide to Medicare: How to Navigate the Big Choices will take place from 1 to 2 p.m., Thurs. Oct. 17.