Here is a website that has Canadian doctors listed -- you scroll through to your city (or the next bigger city near you) and click on that, and doctors come up.
Most neurologists, though, have at least a few patients with MS. MS is a pretty common neurological disorder, so they'd all be familiar with it, and familiar with the current treatments. I haven't actually seen a neuro in years -- my small-town family physician takes care of all my medical needs, including anything related to my having MS.
Good luck with your doctor search!
...I am not a doctor, nor health professional, and don't pretend to be one, here.....