”无证移民若已登记入籍可以加入（政府提供的）医保，但自己需要付一些额外费用”

https://www.washingtonpost.com/graphics/politics/policy-2020/medicare-for-all/undocumented-immigrant-health-care/?noredirect=on

"Undocumented immigrants who register for the path to citizenship would be eligible to participate in the health plan at some additional cost to them," Yang told The Post.