The ANOC is a document you receive from your Medicare Advantage plan each fall outlining any changes to your plan’s coverage effective January 1 of the following year. Review it carefully. If you’re comfortable with any changes made, you can keep your plan as is. On the other hand, if you’d like to explore your options, you may do so during the Annual Election Period (AEP), from October 15-December 7. During AEP, you can switch MA plans, or make other changes to your coverage.