The Canadian health care
system is Federally funded, but Provincially administered, so regulatory details will vary by Province. Ontario
allows you to be out of the country for up to a year, then another year extension may be granted. When we returned after 9 years, we had to document our renewed residence (in Ont.) with several “proofs”, and wait 3 months for coverage to begin.
regulates the rates paid for each different procedure & treatment, which is the amount they will reimburse you for “covered” foreign medical
expenses. The fee structure will NOT cover the full cost of treatment in the USA, which is generally significantly higher. Under certain circumstances, they may pay for “medivac” transportation, but don’t count on it.