Doctors make terrible team members. If they studied in a medical university with a western curriculum, they are taught that they know everything and no one else knows anything. As a result, they often refuse to learn during the survey training and will sometimes convince others on their team to do the same or, worse, to do what they recommend instead of the correct thing. Use public health nurses instead if you need competent people with some clinical medical training. They are much better listeners and almost always do a very good job.