… ’s largest reservation. American Indians have the highest mortality … that nearly half of American Indians on Medicare suffer … expectancy at birth for American Indian-Alaska Native people was 65.2 … These numbers mean that Native American people get less care …… ’s largest reservation. American Indians have the highest mortality … that nearly half of American Indians on Medicare suffer … expectancy at birth for American Indian-Alaska Native people was 65.2 … These numbers mean that Native American people get less care …