Doctors of Internal Medicine are adult medicine specialists. The different specialties in Internal Medicine include:
Allergy, Cardiology, Dermatology, Endocrinology, Gastroenterology, Geriatrics, General Internal Medicine, Hematology, Hospital Medicine, Infectious Diseases, Nephrology, Oncology, Palliative Care, Pulmonary and Critical Care Medicine, Rheumatology.
Internists 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.
In today's complex medical environment, internists take pride in caring for their patients for life -- in the office or clinic, during hospitalization and intensive care, and in nursing homes. Taken from http://www.acponline.org
Check out the Ohio State University College of Medicine website for more information about the medical school curriculum.