Another Reason I Prefer Medicare Supplement Plans over Medicare Advantage Plans

My parents, step-parents, aunts and uncles are all enrolled in Medicare with a Medicare Supplement (Medigap) plan. I sleep well knowing their network of doctors and hospitals is the national Medicare contracted network of doctors, not an insurance company's network of contracted doctors. This is an interesting article: http://www.npr.org/sections/health-shots/2016/03/24/471613036/feds-grant-some-early-switches-when-medicare-advantage-networks-change?sc=tw