Policymakers must ensure that people with Medicare have access to accurate, actionable, personalized information they need to make optimal coverage decisions, both initially and annually. This includes improving Medicare Plan Finder—the federal government’s primary enrollment tool—to be more accurate complete, and easy to use. Similarly, Medicare Advantage and Part D plans should be required to provide a tailored Annual Notice of Change to all enrollees. This notice should be based on claims data and clearly describe how the plan will change in the coming year.