Key Leaders
Deputy Director
Benjamin Smith, [PDF - 157 KB] an enrolled member of the Navajo Nation, is the deputy director for the Indian Health Service.
![P. Benjamin Smith](/sites/aboutihs/themes/responsive2017/images/keyleaders/ben-smith-bio.jpg)
Chief of Staff
Vacant
Chief Medical Officer
Loretta Christensen, M.D., [PDF - 167 KB] an enrolled member of the Navajo Nation, serves as the Chief Medical Officer for the Indian Health Service.
![Dr. Loretta Christensen, M.D.](/sites/aboutihs/themes/responsive2017/images/keyleaders/lchristensen-photo.jpg)
Deputy Director for Intergovernmental Affairs
Stacey Ecoffey [PDF - 184 KB], an enrolled member of the Oglala Sioux Tribe, is the deputy director for intergovernmental affairs for the Indian Health Service.
![Stacey Ecoffey](/sites/aboutihs/themes/responsive2017/images/keyleaders/Stacey_Ecoffey.jpg)
Deputy Director for Management Operations
Darrell LaRoche [PDF - 76 KB], an enrolled member of the Lower Brule Sioux Tribe in South Dakota, is the deputy director for management operations for the Indian Health Service.
![Tina Conners](/sites/aboutihs/themes/responsive2017/images/keyleaders/darrell-laroche.jpg)
Chief Information Officer
Mitchell Thornbrugh [PDF - 205 KB], an enrolled member of the Muscogee Creek Nation, is the chief information officer and director of the Office of Information Technology for the Indian Health Service.
![Mitchell Thornbrugh](/sites/aboutihs/themes/responsive2017/images/keyleaders/Mitch-Thornbrugh-bio.jpg)
Deputy Director for Quality Healthcare and Enterprise Risk Management
Michelle Boylan [PDF - 173 KB], is the deputy director for quality healthcare and risk management for the Indian Health Service.
![Michelle Boylan](/sites/aboutihs/themes/responsive2017/images/keyleaders/Michelle-Boylan.jpg)
Deputy Director for Field Operations
James Driving Hawk [PDF - 192 KB], an enrolled member of the Rosebud Sioux Tribe, is the deputy director for field operations of the Indian Health Service.
![James Driving Hawk](/sites/aboutihs/themes/responsive2017/images/keyleaders/JamesJimDrivingHawk.jpg)
Deputy Director for Field Operations
Rear Adm. Chris Buchanan [PDF - 147 KB], an enrolled member of the Seminole Nation of Oklahoma, is the deputy director for field operations of the Indian Health Service.
![>Rear Adm. Chris Buchanan](/sites/aboutihs/themes/responsive2017/images/keyleaders/chris-buchanan-bio.png)
Deputy Director for Field Operations
Beverly Cotton [PDF - 128 KB], an enrolled member of the Mississippi Band of Choctaw Indians, is the deputy director for field operations of the Indian Health Service.
![Beverly Cotton](/sites/aboutihs/themes/responsive2017/images/keyleaders/BeverlyCotton.jpg)
Headquarters Offices
Office of Clinical & Preventive Services
Timothy L. Lozon, D.D.S.
Acting Director
Office of Direct Service & Contracting Tribes
Tina Conners
Acting Director
Office of Environmental Health & Engineering
Cmdr. Martin L. Smith, RS, MPH
Acting Director
Office of Human Resources
Daniel Frye [PDF - 2.5 MB]
Director
Office of Information Technology
Mitchell Thornbrugh [PDF - 217 KB]
Director
Office of Finance & Accounting
Jillian Curtis [PDF - 142 KB]
Director
Office of Management Services
Santiago Almaraz [PDF - 163 KB]
Director
Office of Public Health Support
Rear Adm. Francis Frazier [PDF - 114 KB]
Director
Office of Quality
Dr. Lisa Majewski [PDF - 117 KB]
Director
Office of Resource Access & Partnerships
Cmdr. Tracy Sanchez
Acting Associate Director
Office of Tribal Self-Governance
Rena Macy
Acting Director
Office of Urban Indian Health Programs
Rick Mueller
Acting Director
Area Directors
Alaska Area Indian Health Service
Evangelyn “Angel” Castagna (Dotomain) [PDF - 621 KB]
Director
Albuquerque Area Indian Health Service
Leonard Thomas, M.D. [PDF - 179 KB]
Director
Bemidji Area Indian Health Service
Christopher Poole [PDF - 130 KB]
Director
Billings Area Indian Health Service
Bryce Redgrave [PDF - 175 KB]
Director
California Area Indian Health Service
Beverly Miller. [PDF - 69 KB]
Director
Great Plains Area Indian Health Service
Joe Amiotte [PDF - 171 KB]
Director
Nashville Area Indian Health Service
Joni Lyon
Acting Director
Navajo Area Indian Health Service
DuWayne Begay [PDF - 170 KB]
Director
Oklahoma City Area Indian Health Service
Rear Adm. Travis Watts, PharmD [PDF - 175 KB]
Director
Phoenix Area Indian Health Service
Charles Ty Reidhead, M.D., M.P.H. [PDF - 86 KB]
Director
Portland Area Indian Health Service
Rear Adm. Marcus Martinez, PE [PDF - 203 KB]
Director
Tucson Area Indian Health Service
Dixie Gaikowski [PDF - 89 KB]
Director