Medicare annual open enrollment ends in less than 1 week. Â Medicare beneficiaries who do not have a Part D plan can enroll in one, and those who do have Part D coverage can change plans.Â Beneficiaries can also return to traditional Medicare from a Medicare Advantage (MA) plan, enroll in an MA plan, or change MA plans. Make sure youÂ review your plan options for 2012, even if you are keeping the same coverage as MA and Part D plans may have made changes to their coverage, provider networks and other plan features. If you’re happy with your current coverage, you don’t need to do anything. Â If you need help in choosing the right plan, visitÂ www.medicare.govÂ and get personalized information about plans in your area.