General Surgeon Salva Hasan works long, irregular hours performing many common surgical procedures to treat injury, disease, and deformity. Their education requires 4 years of pre-medical school, 4 years of medical school, and 3 to 8 years of internship and residency training. While general surgery is one of the highest paying medical jobs in the U.S. with salaries from $150,000 to $300,000 annually, it also has demanding education and training requirements.