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Indian Health Service The Federal Health Program for American Indians and Alaska Natives

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California Area Office logoCalifornia Area Office

Office of Public Health

(916) 930-3981 + Extension

The Office of Public Health ensures that high quality health services are available for Indian people in California. We accomplish this goal by helping the tribal and urban Indian health programs meet nationally accepted standards of care for healthcare organizations. Our professional staff provides training and technical assistance in addition to performing basic federal functions such as contract monitoring and health program performance evaluations. Our mission is to: monitor health status; empower health care providers and consumers about new innovative practices; and join with other health care partners to improve access and delivery of care. We assure proper licensure credentialing is being used and national accreditation is being sought by Tribal, Urban and Buy-Indian health programs.

Office of Public Health

Steve Riggio, DDS, Associate Director (Extension 322) (

  • Administrative direction of health care services
  • Assures management of electronic data collection of health information
  • Assures technical performance monitoring of tribal and urban health contracts
  • Area Dental Consultant
  • Area Head Start Coordinator
  • Area Urban Coordinator
  • Project Officer / Technical Assistance
  • Program performance reviews 

Rachel Harvey, Public Health Analyst, (Extension 361) (
Terri O'Shea, Program Specialist (Extension 311) (


Government Performance and Results Act (GPRA)

Amy Patterson, PhD, Public Health Analyst, (Extension 320) (
Christine Brennan, MPH, Public Health Analyst, (Extension 333) (

  • Data analysis, local and national reports
  • Epidemiology: technical assistance consultant
  • National GPRA management and technical support
  • Program planning and statistics support

Health Professional Consultants

Beverly Calderon, RD, CDE, (760) 735-6884 (

  • Area Health Promotion Disease Prevention (HPDP) Consultant
  • Dietician
  • Project Officer / Technical Assistance

Megan Cocchi (Extension 390) (

  • Health Systems Specialist
  • YRTC Business Office Manager
  • 3rd party billing and collections
  • Provider enrollment

Susan Ducore, RN, PHN, (Extension 323) (

  • Area Nurse Consultant
  • Immunization Coordinator
  • Project Officer / Technical Assistance

Mark Espinosa, MPHA, (Extension 315) (

  • Health Systems Administrator

  • Oversee the daily operations of the YRTC

  • Manage staff and resources for the YRTC

  • Educate the public and professionals about the YRTC program and perform outreach

Marilyn Freeman, RHIA, CHPS (Extension 362) (

  • Compliance Officer
  • Freedom of Information Act (FOIA) Coordinator
  • Health Information Management (HIM) Consultant
  • ICD-10 Coordinator
  • Meaningful Use Coordinator
  • Privacy Officer (HIPAA)
  • Vista Imaging Coordinator

Helen Maldonado, PA, CDE, (Extension 332) (

  • Area Diabetes Consultant
  • Diabetes Managment training and Technical Assistance
  • Improvement Advisor for Improving Patient Care (IPC)


Information Resources Management Office

Robert Gemmell, Supv. IT Specialist, Area Chief Information Officer (Extension 326) (
Toni Johnson, IT Specialist, Business Office Coordinator, CHS Officer (Extension 354) (
Gary Mosier, IT Specialist, RPMS Database Administrator (Extension 329) (
Kelly Stephenson, IT Specialist, Area Telecommunications Liaison (Extension 330) (
Reese Weber, IT Specialist, Information Systems Security Officer (Extension 307) (
Michelle Martinez, IT Specialist, RPMS Support (Extension 358) (
Marcella Begaye, IT Specialist, RPMS Support (Extension 320) (
Stephen Thibodeau, IT Specialist, Clinical Applications (Extension 353) (
Edna Johnson, IT Specialist (Extension 324) (
Ron Byers, IT Specialist, System Administrator (Extension 370) (
Natalie Klier, IT Specialist, Area EHR CAC (Extension 359) (
Marvin Becenti, IT Specialist, So. Cal. YRTC (951-708-4037) (

  • Area website management
  • Business office coordination
  • E-mail system maintenance and support
  • EHR Management and support of Clinical Applications
  • Information security
  • RPMS data reporting
  • RPMS software and patch updates
  • RPMS training and technical assistance
  • Database administration
  • Statistical computer research
  • Telemedicine coordination
  • Third party billing coordination
  • WAN and LAN system support