Can I Switch From Medigap To Medicare Advantage? 
Yes , you can switch from Medigap to Medicare Advantage -LRB- during annual open enrollment -RRB- . The question is , why do you want to ? Your Medigap plan most likely has less than $ 500 out of pocket if you have a bad year . You have $ 0 out of pocket with plan F and $ 2110 with Hi F. Medicare Advantage has an out of pocket of $ 2700 to $ 5700 PLUS your OON charges . 