I absolutely think doctors (general practice ones anyway) are in danger. Generally, they do two things: diagnose and prescribe. Imagine a city with automated booths, all linked up to some massive medical database. You type in your symptoms, the booth does a few things like take your blood pressure, check your eyes, and maybe take a blood sample, things like that.
With its massive medical database, it can probably diagnose you with a very high degree of accuracy and prescribe the appropriate medicine. If it can't accurately assess what you have or if it's something that requires a human doctor, it'll direct you that way.