I'm in Ottawa as well. You'll probably be sent to the General, as the General houses the MS clinic in Ottawa. You'll receive a series if tests, visiting the 2nd floor from A-Z, and once diagnosed, you will be visiting Dr. Freedman, maybe and probably. Certain approved drugs will be presented, or if you qualify, a clinical study.
I am near the end of my clinical study, in another few months. I'm looked after well and the staff are very accommodating.
I would have to say that the neurologist will order the tests, and if MS is suspected, you will be passed on to the MS clinic.
Feel free to PM me if you have further questions.