Be very cautious about considering Medicare Part "C", which is a "Medicare Advantage" plan. They are pushed heavily by Humanna. Hospital and physicians do not have to accept these plans, and many do not. Also, if you have a Medicare Advantage plan, you are not allowed to purchase a Medicare Supplement to cover all the deductibles and co-insurance amounts. If you look at all the expenses you are subject to you won't take a chance on a Medicare Advantage plan.
Having been a Patient Accounting Director in a 325 bed Hospital for 35 years, I wouldn't touch one with a with a long barreled Mosberg.