Medicare Supplement Insurance (Medigap)
This is also known as Medigap and is a health insurance policy with certain benefits that is sold by private insurers. The purpose of these benefits is to fill in any gaps left by your Medicare coverage. These supplements can help with cost sharing by paying some of your deductibles, copayments, or coinsurance. You cannot enroll in a supplement plan unless you have Medicare Parts A and B, and you have to continue paying your Part B premiums on top of the premiums charged by the supplement plan.
Frank knew his Medicare plan did not provide all the coverage he realistically needed, so he went out and purchased a Medicare Supplement Insurance Plan.