# Medicare Supplement (Medigap)

Medigap policies help pay Original Medicare cost-sharing. Standardized lettered plans. Sold today, they do not include Part D drug coverage.

Best time to buy: 6-month Medigap Open Enrollment starting the month you are 65+ and enrolled in Part B (guaranteed issue). Oregon and Washington have extra switching protections that national guides often omit; see the state rules guide.

You cannot have Medigap and Medicare Advantage at the same time.