What Is Medicare Part C Insurance? 
Medicare Part C added Advantage Plans to the Medicare mix . Advantage plans are usually HMO 's or PPO 's . Medicare takes yourcoverageand assigns it to the insurance carrier you choose . That company is now your Medicare provider and you are subject to the rules and limitations that they impose . If you leave your area , chances are you leave your insurance behind as well . Most have very low , or no premiums , but include exposure to the beneficiary through co-pays and co-insurance that could result in significant out of pocket expenses to the beneficiary . Most plans also include drug coverage so you would not need aMedicarePart D prescription drug plan . All drugs may not be covered . 