referral services, and comprehensive healthcare services. Administration The Indian Health Service is headed by a director; , the current director is Roselyn Tso. Reporting to the director are a chief medical officer (Dr. Loretta Christensen, M.D. ), deputy directors (Field Operations, Intergovernmental Affairs, Management Operations, and Quality Health Care), and Offices for Tribal Self-Governance, Urban Indian Health Programs, and Direct Service and Contracting Tribes. Twelve regional area offices each coordinate infrastructure and programs in a section of the United States. A 2010 report by Senate Committee on Indian Affairs Chairman Byron Dorgan, D-N.D., found that the Aberdeen Area of the IHS is in a "chronic state of crisis". "Serious management problems and a lack of oversight of this region have adversely affected the access and quality of health care provided to Native Americans in the Aberdeen Area, which serves 18 tribes in the states of North Dakota, South Dakota, Nebraska and Iowa," according to the report. Between 2015 and 2017, the agency saw five different directors. Rear Admiral Chris Buchanan, a Seminole, served as acting director from January–June 2017. Prior to Buchanan, the office was headed by attorney Mary L. Smith (Cherokee). Yvette Roubideaux (Rosebud Sioux), was appointed director of IHS by President Obama in 2009; she was re-nominated for a second four-year term in 2013 but was not re-confirmed by the Senate. After she stepped down in 2015, she was briefly replaced by Robert McSwain (Mono). Roubideaux was also preceded by McSwain, who had served as director for eight months. Trump's nominee for the post, Robert M. Weaver of the Quapaw Tribe, withdrew from consideration after questions arose about his resume. In June 2017, HHS Secretary Alex Azar appointed Rear Admiral Michael D. Weahkee, a Zuni, to be acting director. In July 2017, Weahkee was severely chastised during the United States Senate Appropriations Subcommittee on Interior, Environment, and Related Agencies budget hearings by Senator Jon Tester. Weahkee refused to answer repeated direct questions about whether the 2018 IHS budget proposal was adequate to fulfill the Service's remit. In the December 11, 2019 Senate Committee on Indian Affairs hearing on the nomination of Weahkee as director of the Indian Health Service, Sen. Tester, a former chairman and former vice chairman of the committee, told Weahkee, "I think you're going to get confirmed ... And you should get confirmed." Weahkee was finally confirmed to the post on April 21, 2020, by