After you enroll in Medicare, your first order of business is to decide whether you want to get coverage from original Medicare — the government-run program that includes Part A hospitalization coverage and Part B doctor and outpatient services — or a Medicare Advantage plan, which bundles Parts A and B and usually Part D prescription drug coverage. Private insurers sell Medicare Advantage , What Is Medicare Advantage? Medicare Advantage, also known as Medicare Part C, is an alternative to traditional Medicare coverage and is offered by private health insurance companies. Medicare Advantage plans include Medicare Parts A and Part B (Original Medicare). Part C plan options provide all the benefits of Original Medicare and often include additional benefits, such as prescription drug , , , , .