Define Medicare

What will be an ideal response?

Medicare (a federal program administered by the Centers for Medicare and Medicaid Services [CMS]) serves people aged 65 years and older as well as disabled people with chronic renal disorders. Medicare allows patients to choose their physicians; referrals are not needed. Some Medicare patients choose to belong to health maintenance organizations (HMOs). Many people supplement Medicare with private fee-for-service plans in which they are not restricted to a network of providers and do not need referrals to specialists. The patient is required to pay a cost-sharing amount; the provider bills the insurance for the remainder.