Internists typically complete a three-year residency program in internal medicine after graduating from medical school. The residency provides hands-on training in various subspecialties within internal medicine, including cardiology, pulmonology, gastroenterology, and others.
After completing residency, internists may choose to pursue further specialization through fellowships in areas such as cardiology, gastroenterology, or infectious diseases. Board certification in internal medicine is obtained through examinations administered by the American Board of Internal Medicine (ABIM).