Medicare Advantage plans are an alternative to Original Medicare. These plans, sometimes called “Part C”, are offered by Original Medicare-approved private companies that must follow rules set by the Medicare Program. To enroll in a Medicare Advantage plan, you must have Original Medicare, Part A, and Part B. You may be eligible for additional plan benefits that may be included with a Medicare Advantage plan.
Medicare Supplement insurance plans, also called Medigap are health insurance policies that help pay some of the health care costs that Original Medicare doesn’t cover. When you buy a Medicare Supplement insurance plan, you are still enrolled in Original Medicare, Part A and Part B. Original Medicare pays for your health-care bills primarily, while the Medigap plan simply helps cover certain cost-sharing expenses required by Original Medicare, such as copayments or deductibles.