I did manage to fulfil the requirement of medical surveillance within the first week of landing. As I was staying in Mississauga, I phoned up Peel Health Region and spoke with the TB nurse. I told her that I am only there for a week. She did my assessment over the phone and asked me to either fax or email the medical surveillance undertaking form (which you will receive from the immigration officer), so that they can set me up on the system. The nurse advised that I can print the doctor reporting form for inactive TB online (rather than waiting for it in the post or via email), which I will need to take it to the doctor.
The next step was to visit the doctor. So we did go to the multi speciality walk in clinic at Queensway in Mississauga. Since it is a walk in clinic, you don’t need an appointment. They asked me to come between 9am and 3pm to see the physician and a specialist. It costed me $198.00. Specialist referred me for the X-ray which was done the same day at the same clinic. I paid about $40 for the X-ray. The reports was available within 2 working days. Based on the report and my medical history, doctor filled up the form and everything was faxed to the peel health centre (number was available on the form). I phone the TB nurse again to confirm if they have received the form and my x-ray report from the doctor. She confirmed that they have received all and will update the immigration office.
I would recommend that you take all your medical records related to your TB treatment with yourself to the doctor. My records were well kept and it helped the doctor to see what treatment I had received.
Hope this information helps.