Medicare glossary
Medicare Supplement (Medigap)
A Medicare Supplement, or Medigap, is a private policy that works alongside Original Medicare to pay the out-of-pocket costs it leaves behind, like the 20% coinsurance and deductibles. Plans are standardized and labeled by letter.
Because Medigap plans are standardized, a Plan G from one insurer covers the same things as a Plan G from another — only the price and service differ. There are no networks, so you can use any provider that accepts Medicare. Medigap doesn't include drug coverage, so most people add a Part D plan.
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