What is Medicare Supplemental Insurance?
Medicare Supplement plans, or Medigap, are insurance policies sold by private insurance companies that are licensed to sell Medicare plans. They help you pay for out-of-pocket costs for services covered under Medicare Part A and Part B.
These costs include deductibles, coinsurance, copayments, hospital costs after Medicare pays its share, skilled nursing facility costs, and more. Some Medicare Supplement insurance plans even include coverage for medical services while traveling outside the United States.