Medicare is a health insurance program for citizens of US. It has various parts such as plan A , plan B and so on. Medicare Supplement insurance , also known as Medigap was introduced later on in order to fill the gaps of original Medicare plan and to provide more benefits. This video describes about what Medicare Supplement insurance covers. Visit https://www.thehealthexchangeagency.com/medigap-benefits-comparison-chart/ and explore more about Medigap.