He is what…15 years old…or so? And your plan is for him to go to medical school?
I think you have put the cart before the horse. He can attend any college on the U.S. or Canada, and potentially go on to medical school…in 7 or 8 years. But really…by that time…he might have a very different world view on becoming a doctor.
At this point, in 9th grade, he should be concentrating on HS, his grades there, his ECs, his teenage life. He doesn’t need to, nor should he feel,he needs to target colleges…now.