We see AI doctors in Sci-Fi works all the time. Examples can be the famous medical droids of Star Wars (first encounter 1980):
The Doctor (Emergency Medical Hologram Mark I) from Star Trek: Voyager (1995) is an even better example because it didn't have a physical body. I believe I've also encountered AI doctors in Doctor Who several times, but I can't recall an example.
Which Sci-Fi work first explored the concept of an AI doctor?