In addition to the standard requirement of a bachelor's degree and 4 years of medical training, a cardiologist must also complete a three-year internship, plus three to four additional years of specific skill-focused training that a cardiologist needs in his work. Cardiologists, considering the importance and delicacy of the work they carry out, are among the best paid doctors, their salary being surpassed for the most part only by cardiovascular surgeons. (HEALTH CAREER,