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.
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.fter attaining a Doctor of Medicine (M.D.) or Doctor of Osteopathic Medicine (D.O) degree, the doctor must undergo at least 3 years of special study and training (called a general internal medicine residency) in a program accredited by the American Council for Graduate Medical Education.