Medicare is a national health insurance program in the United States, primarily providing health insurance for individuals aged 65 or older, as well as some younger individuals with disabilities. Coursera's Medicare catalogue teaches you about this essential program, its operating principles, and the regulations governing it. You'll learn about the different parts of Medicare, from Part A (Hospital Insurance) and Part B (Medical Insurance) to Part C (Medicare Advantage) and Part D (Prescription Drug Coverage). This knowledge will equip you to navigate the complexities of healthcare for the elderly and disabled, understand policy implications, and contribute to discussions on healthcare reform. It is a valuable skill for healthcare professionals, policy makers, or anyone interested in understanding health insurance in the U.S.