At any rate, there are a bunch in Montreal. Here's one: https://www.rocklandmd.com/en/medical-clinic.html Here's another: https://cliniquesmedicaleslacroix.com/en/ You can certainly find more by searching for "[Canadian Place Name] private clinic"
Heck, here's a news article about the Quebec government outsourcing some work to private clinics to clear COVID-related backlogs. For there to be $100M worth of contracts, there must be a decent number of clinics.
https://www.cbc.ca/news/canada/montreal/private-clinics-queb...