How To Change From Medicare Advantage To Original Medicare? 
You can change from Medicare Advantage to original Medicare at any time . There is no open or annual enrollment . The catch is qualifying for a Medicare supplement plan . In most states once you get past your initial enrollment period -LRB- after turning 65 and enrolling in Part A and Part B -RRB- you will need to provide evidence of insurability if you want a Medigap plan . It is n't that difficult if you are in reasonably good shape . I can qualify my prospects in about 3 minutes and let them know if they will pass underwriting or not . 