Medicare Part B primarily covers:

解析

Medicare Part B is medical insurance, covering physician services, outpatient hospital care, durable medical equipment, and a range of preventive services; beneficiaries pay a monthly premium for it. Inpatient hospital care is Part A, prescription drugs are Part D, and long-term custodial care is largely not covered by Medicare at all. Knowing that Part B handles doctor and outpatient services, while Part A handles hospital stays, is essential for advising Medicare-eligible clients.