World Nomads has worked for me.  You just buy a new policy when you need to extend the trip.<p>If you buy one for 6 months it comes out to $80 &#x2F; month.  You must be farther than 100 miles from your home residence at the time of your medical incident.<p>I believe the catch is, if something happens and you need coverage beyond the end of your current policy, then renewing it doesn&#x27;t earn you continued coverage for that incident.  That would be what they call a pre-existing condition.<p>So you&#x27;ll notice when you sign up that the longer you extend your policy, the more it costs per month.  E.g. 3 months might be $200 and 6 months $600