Is Medicare Advantage A Supplement To Medicare? 
No , Medicare Advantage is different than a Medicare Supplement . A Medicare Advantage Plan is a program set up by the government utilizing private insurance companies to administer claims and benefits under the supervision of the Center for Medicare Services . While you are still in the Medicare System and have all the rights of Original Medicare , a Medicare Advantage Plan takes the place of Original Medicare . The plan would pay the claims and offer the benefits based on an allowance that Medicare provides the insurance company for each member they have enrolled . Medicare Advantage has less potential out of pocket and richer benefits than Original Medicare but most require you stay in network . Original Medicare does not have networks . 