Can I go to Canada for medical treatment?

I am a US citizen with a health issue, and need to be checked out by a physician. Unfortunately my health insurance will not be instated for two more months. I’m afraid this might be too long to wait. I’m almost positive I need an X-ray, among other possibly expensive procedures (potentially surgery). I am curious as to whether or not going to Canada is a viable option. Is their healthcare really free? And if so, would it be for a non Canadian.