Katy Votava, president of Goodcare.com and a Medicare expert, cautions against using the word Medicare to describe a public single-payer system. That is because most of the current Medicare system is actually private insurance, though it is regulated by the government, Votava said. And the coverage people get from Medicare typically comes after they have paid into that system for 40 or 50 years. Once they are covered by Medicare, patients are often confronted by high costs and confusing rules, Votava said. "We can provide more reasonable health insurance for all and health services for all," Votava said. "I know we can. "But it involves breaking down some old ways." https://www.cnbc.com/2019/02/05/medicare-for-all-will-take-center-stage-in-the-2020-election-heres-what-it-means.html