A Medicare Advantage plan works differently than a Supplement. With a Medicare Advantage Plan a private company TAKES OVER for Medicare (you remain in the Medicare system but Medicare is no longer responsible for your bills). These plans follow the same type of module as many group plans such as HMO or PPO. With this type of plan it is important to remember several things. First, most Advantage Plans have Networks so you want to make sure your Doctor, Hospital, and auxiliary care are within the network (otherwise you will be paying higher costs and in some cases are responsible for 100% of care outside the network). Second, Advantage Plans have co-pays associated with them. It is important to be aware of these because they can add up to be quite a bit of money. Third, most Advantage Plans have the Part D “built in” which is a nice bonus but you must be aware that when switching to a Supplement from an Advantage Plan you will also need to add a Part D. (there are several types of Advantage Plans that do NOT have the Part D built in so this is something you need to keep in mind when choosing any plan). Lastly, Advantage Plans typically have value added benefits. These benefits vary between plans but typical benefits include Health Club membership, limited dental, eye and/or vision.