My older brother, who works as a doctor, says that the salary can vary greatly from the doctor's specification. I can't talk about all the specifications, but I can talk about my brother's profession. It works as a Phlebotomist. It has to do with the blood and its analysis, as far as I can remember. His salary is about about $ 35,000, you can see more accurate figures here
phlebotomynearyou.com, since sometimes this can change a bit. In fact, it's not such a difficult specialization, but for this my brother had to learn a lot of material. He is a good doctor and loves his job, so I think that such a salary is very right.