In the province in Ontario, where we have a few density populated communities often surrounded by large stretches of wilderness, folks are transported by helicopter in emergencies:

* https://en.wikipedia.org/wiki/Air_ambulance

* https://en.wikipedia.org/wiki/Air_medical_services

* https://sunnybrook.ca/content/?page=rooftop-helipad

If you look at the list of heliports in the province, you'll see quite a number of them are at hospitals:

* https://en.wikipedia.org/wiki/Category:Heliports_in_Ontario

Including ones, like St. Mike's and Sick Kids, in high density areas where they're often at the top of high-rise towers:

* https://www.youtube.com/watch?v=-OtDwkg-jGI

There are also non-emergency patient transportation services:

* https://en.wikipedia.org/wiki/Ornge