Nope, I've founds cabs highly competitive esp. rush hour as the ride hailing companies think they have you believing they are cheaper.
The 151 bus will take you from Union Station to within a block of Galter Pavilion, a part of Northwestern Medical.
No they do not. Best bet is to schedule a Lyft or Uber
I don't belive so. There is a cab station right outside the main lobby.
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