Can the medical doctors be replaced by AI in future? Which branches of medical practices will be hit first?

This is a very good question. The answer is simpl: NO

While we can recreate many fo the procedure, protocols' and processes needed to handle patients, the “human touch” is an element which is difficult to reproduce as the doctor-patient encounter is a very complex reaction that involves many different senses.

Twosixty Singh, MD Medicine and Healthcare, Boston University (2011)

Source: Quora Digest