No it doesn’t. The US doesn’t have free health care like Canada does.
If you attend an American University as a Canadian citizen, does free healthcare still apply to you in that country? Or no? I want to attend somewhere in America probably, but I’m not sure about insurance and stuff
If you're asking if your Canadian healthcare still works, while you attend an American college ... I believe it does, as long as you are a Canadian citizen. It would be pretty worthless, if it didn't cover you outside Canada.