Doctors of internal medicine are trained specifically to meet the health care needs of adult patients. Internal Medicine focuses on the prevention, diagnosis and treatment of diseases more commonly found in adults. Due to that specialized training, internists are often called upon to help health care providers answer some of the body's most puzzling questions. It's that knowledge that ensures patients receive the best information possible when making very important health care decisions, no matter how complex that decision might be.
What is an “Internist”?
Simply put, internists are doctors of internal medicine. You may see them referred to by several terms, including "internists," "general internists" and "doctors of internal medicine." But don't mistake them with "interns," who are doctors in their first year of residency training.
General Internists are primary care physicians who treat the whole person. An Internal Medicine physician may further sub specialize with additional training and more experience in a specific field. These sub-specialties include cardiology (heart), endocrinology (endocrine glands), pulmonology (lungs), and nephrology (kidneys) in addition to many others.