Medicare Supplement insurance, sold by private companies, can help pay some of the health care costs that Original Medicare doesn’t cover, like copayments, coinsurance, and deductibles. Some Medicare Supplement policies also offer coverage for even more services that Original Medicare doesn’t cover, like medical care when you travel outside the U.S. If your clients have Original Medicare and they buy a Medicare Supplement policy, Medicare will pay its share of the Medicare-approved amount for covered health care costs. Then their Medicare Supplement policy pays its share. Learn more here.