I know we have some Canadians, as well as people from all parts of the globe, although it does seem to be predominately U.S. based. I love the fact that from my own home I can touch base with people anywhere and everywhere, so I hope you feel welcome here. And besides, I live on the southern shores of Lake Erie, and on a good day can see you!!! LOL
Also, there may be tons of pain centers here in the U.S., but I'm not sure they're all that great at providing treatment (though some are). It's probably got more to do with our systems of health care - maybe in Canada there's not as much need for advertising? Here there is a competition for business even though the industry is technically "non-profit" for the most part.
Anyway, maybe your post will draw a few Canadians out of the woodwork?