Parisian doctor's offices are usually in the same building as residential apartments. In fact, the offices themselves often are converted apartments. The first few times I encountered this I found it bizarre (I go into this in more detail in my book, Confessions of a Paris Potty Trainer) but once you get used to it, you can appreciate their charm.
Crown molding, hardwood floors, floor-to-ceiling windows - these are features most of us wish we had in our own houses!
Here are a few snaps of some Parisian waiting rooms:
My dentist's office is more posh than my apartment