My biggest interest in all of this is just because robots will inevitably be able to do all of this one day, does that mean we would want them too? I mean, even if they can give me a great diagnosis of my illness, I think it is easy to forget how important personal connection is in medicine. If the robot can not make feel comfortable and trust in it, then no matter how good it is I, as studies have shown, will be less likely to follow its instructions. Half of medicine is dealing with people and just because WATSON can put together certain diagnoses does not mean it would make a good doctor. I mean the point of interviews are to make sure a person can speak to others and is personable, so if robots can't do that, I think that physicians will still be employed.
It is very easy to think that just because a robot CAN make me a great beverage that I like at a bar for instance, it doesn't mean that I wouldn't prefer to have an attractive and personal bar tender do that as well. So, I think it is less about when robots will be capable of diagnosing disease or preforming surgery, and much more about when they can start to actually act and LOOK like humans that they will start to represent a much larger scale of the economy.