A Medicare Supplement (Medigap) policy is health insurance sold by private insurance companies to fill the gaps in Original Medicare Plan coverage. Medigap policies help pay some of the health care costs that the Original Medicare Plan doesn't cover.
Internal Medicine encompasses the care of all adults, healthy and sick. Internists (as all doctors who complete an internal medicine residency are called) can be generalists or subspecialists, like cardiologists or rheumatologists. If you choose not to subspecialize, you are known as a General Internist.
ColorBlind Images/Blend Images/Getty Images. Internal medicine is devoted to internal diseases that occur in adults and, in some cases, adolescents. A doctor who specializes in internal medicine is called an internist and is trained in primary care. Internists are experts in diagnosis, treat chronic illnesses, promote health through strategies such as wellness education and try to prevent disease. In addition to general internal medicine, many subspecialties exist.