You are still part of Medicare: You must have Part A & B of Medicare to be eligible to enroll in an Advantage plan, and while on the plan you still have all of the rights and protections of Medicare.
Networks for Doctors and Hospitals: Each company has its own network of doctors and hospitals. Be sure to check that your current doctors and hospitals are in network for the plan you are selecting.
Pre-Existing Conditions: You can join a Medicare Advantage plan even if you have a pre-existing condition, with the exception of End- Stage Renal Disease (ESRD).
Follow the Rules: In order to avoid extra costs you must be sure to follow the rules of your plan, such as staying in network, and getting a referral to see a specialist.
Additional Benefits: In addition to standard Medicare benefits, many plans include coverage for Vision, Dental, Drugs, and even gym memberships.
Low Monthly Premiums: Premiums for Medicare Advantage plans are typically fairly low since Medicare contracts with these insurance companies to provide your Part A & B benefits on behalf of Medicare.