在美国,医疗保险制度是美国联邦政府针对65岁以上老年人的一项主要的卫生保健保险。另外,此保险适用于永久残疾的人和肾病晚期的病人(即患肾病需要透析或肾移植的病人)。目前,美国每年有近4亿人受益于这项医疗保险,美国每年为此要支付2130亿美元。这项保险主要支付经项目管理员 In the United States, the Medicare system is a major health care insurance scheme for the United States federal government for seniors over the age of 65. In addition, this insurance applies to persons with permanent disability and patients with advanced kidney disease (ie, patients who have kidney disease requiring dialysis or kidney transplantation). Currently, nearly 400 million people in the United States benefit from this medical insurance each year, and the United States has to pay 213 billion U.S. dollars each year. This insurance is mainly paid by the project manager