I know that the 5 star SEP can be used to switch to a plan rated 5 stars by CMS Dec 8- Nov 30. But if someone has just Medicare A&B, no MAPD and no PDP, can they use this election to enroll in a MAPD? I know you can't do this in OEP, but not sure about the 5 star SEP. I know they would still have a Part D LEP. Thanks for any help.