Medical Definition of Medicare

  • Medical Author:
    William C. Shiel Jr., MD, FACP, FACR

    Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.

Medicare: The US government's national health insurance program for people aged 65 and older who have worked for at least 10 years in Medicare-covered employment, and who are citizens or permanent residents of the US. Medicare Part A covers inpatient hospital stays, and Medicare Part B covers physician and outpatient services.

Reviewed on 9/7/2018

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