what is a internist
Print. An internist, also called a general internist or doctor of internal medicine, is a medical doctor that specializes in the diagnosis and medical (nonsurgical) treatment of adults.Internists provide long-term, comprehensive care and manage both common and complex diseases.he minimum requirement for acceptance into medical school is 3 years of college, but most students have an undergraduate (e.g., Bachelor of Science) or advanced degree. Internists must complete a minimum of 7 years of medical school (usually 4 years) and postgraduate training.