Plan G is better for some people, but Medicare Advantage may be better for others., Medicare Advantage (Part C) plans cover healthcare costs that Original Medicare (Part A and Part B) does not. This varies by plan but may include items like hearing aids and gym memberships. Many Part C plans also fold in Part D prescription drug coverage., In contrast, Medigap Plan G covers the out-of-pocket costs that are left over after Medicare covers part of your bills. Medigap plans don’t pay for line items, like eyeglasses, that Original Medicare won’t pay for at all.,