Careers in medicine in the US To become a medical doctor in the US. one mu attend four years of college and receives a achelor's degree, followed by four years of medical school then he becomes an intern in a hospital and receives supervised practical training. As an intern he has to " make rounds "with other doctors, visiting hospital patients. He is supposed to help give special treatment and answer emergency calls in the hospital at any time of day or night. Finally he becomes a resident at a hospital. Like the intern, he learns by observing the work of othersCareers in medicine in the US To become a medical doctor in the US, one must attend four years of college and receives a bachelor’s degree, followed by four years of medical school. Then he becomes an intern in a hospital and receives supervised practical training. As an intern, he has to “make rounds” with other doctors, visiting hospital patients. He is supposed to help give special treatment and answer emergency calls in the hospital at any time of day or night. Finally he becomes a resident at a hospital. Like the intern, he learns by observing the work of others