A physician diagnoses illnesses and prescribes and administers treatment for people suffering from injury or disease. Physicians examine patients, obtain medical histories, and order, perform, and interpret diagnostic tests. They counsel patients on diet, hygiene, and preventive health care. Earnings of physicians and surgeons are among the highest of any occupation and depend on the area of specialty and how long the individual has been a physician.
The mathematics required for physicians includes but is not limited to College Algebra, Trigonometry, Calculus I, Calculus II, Linear Algebra, Statistics, and Probability. Note that each med school also has its own math requirements.
In order to find the average income of a physician, please use this link.
For more information about physicians, the US Bureau of Labor Statistics breaks down the job of a physician into multiple sections to help better understand the requirements of becoming a physician.