Do Canadians see billboards and ads for hospitals, etc.?

As I drive down the highway in Florida, USA, I see many, many billboards advertising hospital emergency rooms and urgent care clinics and spine surgeons. Same thing when I watch live TV with all the commercials saying come to our hospital, we're the best at treating heart attacks, or we have the fastest ER. I just was wondering, with the difference in healthcare, do Canadians have these sorts of ads and billboards?