Physicians are Doctors of internal medicine that are dedicated to learning how to prevent, diagnose, and treat diseases that affect adults. They are sometimes referred to as the "doctor's doctor," because they are often called upon to act as consultants to other medical practitioners to help solve puzzling diagnostic problems. Physicians are equipped to deal with whatever problem a patient brings, no matter how common or rare, or how simple or complex.

They are specially trained to solve puzzling diagnostic problems and can handle severe chronic illnesses and situations where several different illnesses may strike at the same time. They also bring to patients an understanding of wellness (disease prevention and the promotion of health), women's health, substance abuse, mental health, as well as effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.