In our Medicare Minute series, you’ll get helpful answers to the most common Medicare questions in 60 seconds or less. Next up: A closer look at Medicare Part C and Medicare Supplement. Part C plans, also known as Medicare Advantage, are approved by the Federal government and run by private insurance companies. They provide all Part A and Part B benefits, but your out-of-pocket costs may be lower. They also include extra benefits like gym memberships, dental cleanings, and coverage for glasses and hearing aids. Many Medicare Advantage plans also include Medicare Part D prescription drug coverage. In addition to the extra benefits, people choose Medicare Advantage for the ease and convenience of having Medicare Part A, Part B, and Part D all in one coverage plan. Medicare Supplement helps pay deductibles, copayments and coinsurance not covered by Parts A and B. It carries a monthly premium and does not include extra benefits or prescription drug coverage. You cannot have both a Medicare Advantage and Medicare Supplement plan.