th part of medicare that is the hospital insurance portion is
Medicare Part A
title: Medicare (United States) text: Medicare (United States) Medicare is a national health insurance program in the United States, begun in 1966 under the Social Security Administration and now administered by the Centers for Medicare and Medicaid Services (CMS). It provides health insurance for Americans aged 65 and older. It also provides health insurance to younger people with some disability status as determined by the Social Security Administration, as well as people with end stage renal disease and amyotrophic lateral sclerosis. Medicare is funded by a combination of a payroll tax, beneficiary premiums and surtaxes from beneficiaries, and general U.S. Treasury revenue. In 2017, Medicare title: Medicare (United States) text: care; and the costs related to basic Medicare's lifetime and per-incident limits. Medicare is divided into four Parts. Medicare Part A covers hospital (inpatient, formally admitted only), skilled nursing (only after being formally admitted to a hospital for three days and not for custodial care), and hospice services. Part B covers outpatient services including some providers' services while inpatient at a hospital, outpatient hospital charges, most provider office visits even if the office is "in a hospital," and most professionally administered prescription drugs. Part D covers mostly self-administered prescription drugs. Part C is an alternative called Managed Medicare by the title: Medicare (United States) text: approximately as of 2018 $1000 in the initial spend phase and $3000 to reach the catastrophic phase. This is just a template and about half of all Part D plans differ (for example, no initial deductible, better coverage in the gap) with permission of CMS, which it typically grants as long as the sponsor provides at least the actuarial equivalent value. No part of Medicare pays for all of a beneficiary's covered medical costs and many costs and services are not covered at all. The program contains premiums, deductibles and coinsurance, which the covered individual must pay out-of-pocket. A study title: Medicare (United States) text: begins once a patient meets his or her deductible ($183 for 2017), then typically Medicare covers 80% of the RUC-set rate for approved services, while the remaining 20% is the responsibility of the patient, either directly or indirectly by private group retiree or Medigap insurance. Part B coverage includes out patient physician services, visiting nurse, and other services such as x-rays, laboratory and diagnostic tests, influenza and pneumonia vaccinations, blood transfusions, renal dialysis, outpatient hospital procedures, limited ambulance transportation, immunosuppressive drugs for organ transplant recipients, chemotherapy, hormonal treatments such as Lupron, and other outpatient medical treatments administered in a doctor's title: Health insurance text: hospital stays and incurred approximately $112.5 billion in aggregate inpatient hospital costs (29% of the total national aggregate costs). Public programs provide the primary source of coverage for most senior citizens and for low-income children and families who meet certain eligibility requirements. The primary public programs are Medicare, a federal social insurance program for seniors and certain disabled individuals; and Medicaid, funded jointly by the federal government and states but administered at the state level, which covers certain very low income children and their families. Together, Medicare and Medicaid accounted for approximately 63 percent of the national inpatient hospital costs