Eventually, we won’t need the average doctor and will have much better and cheaper care for 90-99% of our medical needs. We will still need to leverage the top 10 or 20% of doctors (at least for the next two decades) to help that bionic software get better at diagnosis. So a world mostly without doctors (at least average ones) is not only not reasonable, but also more likely than not. There will be exceptions, and plenty of stories around these exceptions, but what I am talking about will most likely be the rule and doctors may be the exception rather than the other way around.
However fictionalized, we will be aiming to produce doctors like Gregory House who solve biomedical puzzles beyond our best input ability. And India, China and other countries may not have to worry about the investment in massive healthcare or massive inequalities in the type of physicians they might have access to. And hopefully our bionic software (or independent software someday) will be free of the influence of heavily marketed but only minimally effective drugs or treatment regimes or branding campaigns against generics or lower-cost and equally effective, more affordable drugs and treatments. Dr. A will be able to do a cost optimization too both at the patient level and at the policy level (but we may choose, at least for a decade or two, to reject its recommendations—we will still be free to be stupid or political).