What About Purchasing A Medicare Supplement (Medigap) Insurance Plan?If you have a Medicare Advantage plan, you will not be allowed to also have a Medicare Supplement insurance policy for paying any of the out-of-pocket costs that you incur from the Medicare Advantage plan.
In fact, if you already own a Medicare Advantage plan, you cannot purchase a Medicare Supplement insurance policy at all unless you dis-enroll from Medicare Advantage and return to Medicare Parts A and B (Original Medicare). Only then will you be allowed to use Medicare Supplement insurance for filling in the “gaps” in Medicare’s coverage such as its deductibles and copayments.

Before Making Any Changes
Prior to making any changes or plan additions, you should weigh out all of your potential options. Then, you should contact Medicare directly in order to ensure that you are taking all of the necessary steps for ensuring the right coverage for your particular needs without jeopardizing your Medicare coverage eligibility.