The Role of Medicare and the Indian Health Service for American Indians and Alaska Natives: Health, Access and Coverage December 18, 2014 Report This report examines the role of both Medicare and the Indian Health Service (IHS) in providing access to health care for about 650,000 American Indians and Alaska Natives who are age 65 and older or who have permanent disabilities. While Medicare provides important health care coverage for most in this group, its relatively high cost-sharing and gaps in benefits can be problematic for American Indians and Alaska Native Medicare beneficiaries who do not have additional supplemental coverage or who cannot access IHS providers.