204 Simcoe Avenue Unit 1 & 2, Keswick Ontario, L4P 3S6
Info line for new patients: 1-877-937-2282
As part of the Canadian Addiction Treatment Centres clinic network, you can find OATC Keswick’s up-to-date hours here.
Parking & location at the back of the plaza.
Keswick is a community in south central Ontario on Cook’s Bay at the bottom of Lake Simcoe. Keswick is located north of Markham, at the top of Hwy 404 and for some is a bedroom community for the greater Toronto area.