A dermatologist is a skin doctor who treats many skin conditions like acne, wrinkles, and skin disorders. To become a dermatologist requires obtaining a medical degree and completing a 3-year dermatology residency after medical school. Coursework in high school should focus on math, science, and biology to prepare for pre-med classes in college and medical school. Salaries for dermatologists range from $195,000 for those early in their career to over $452,000 for more experienced dermatologists.