1. What is Medicare Part B? Posted on September 11, 2017 at 11:59 am.Written by advantage_admin This refers to health care coverage. It helps pay for the following services: Physicians and other health care providers Outpatient care Home health care (infusion therapy) Durable medical equipment (DME) Some preventive care services Post navigation 4. How do I enroll in Medicare Part A?2. How do I enroll in Medicare Part B?