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California Area Office logoCalifornia Area Office

Office of the Area Director (OAD)

(916) 930-3981 + Extension

The Office of the Area Director provides overall direction and leadership by encouraging maximum participation by California area tribes in establishing the goals and objectives for the California Area Indian Health Service. This office coordinates activities, resources, pertinent health policy and program management issues, both internal and external, with other federal, state, local and privately funded health care programs.

Beverly Miller, MHA, MBA, Area Director (Extension 302) (
Steve Riggio, DDS, Deputy Area Director

  • Administrative decision and program direction
  • Congressional inquiries
  • Media and public affairs
  • Tribal consultation
  • Youth Regional Treatment Center (YRTC) Task Force coordinator

Charles Magruder, MD, Chief Medical Officer (Extension 367) (

  • Medical leadership and clinical advisor
  • Healthcare quality, accreditation and compliance
  • Development and implementation of health policy and initiatives
  • Medical recruitment and retention advisor
  • Supervisor / Liaison for PHS commissioned officers assigned to tribal healthcare programs under memorandum of agreement
  • Veterans Health Administration advisor

David Sprenger, MD, Behavioral Health Consultant (Extension 321) (