Welcome to the forum, I too am sorry that you have an AN but pleased that you found the web site. I am from Ontario, north west of Toronto. I saw several surgeons here in Ontario, Dr Akagami in Vancouver, and I had a telephone consultation with Dr Friedman of the world renowned House clinic in Los Angeles.
To get to see a doctor in another province you need a referal from your physician. You also have to live in a province that has a recipricol agreement (co-pay kind of thing) with your provincial health insurance.
As far as the referals go, you have the right to ask for 2nd, 3rd and 4th opinions in regard to the treatment for your tumour. It's your head, your future and your decision what to do. Research it and find a surgeon you want to see or go to, and then go tell your family doctor that's where you want to go.
Make sure you keep reading the forums for information, but beware, sometimes all the reading and research can be overwhelming. I guess the best piece of advise I have for you is, it's not a race. You have time.
All the best,