You will need comprehensive overseas travel insurance If you plan to travel and reside outside the  U.S. or Canada for an extended period, until you become eligible and choose to enroll in a plan in your new country of residence.  Some countries offer "Single Payer" (Gov't subsidized) health insurance plans for all qualified residents.  It is important that you check out the availability and requirements of local plans before any coverage in North America expires.  Your full U. S. or Canadian coverage will probably not extend overseas.