a female mosquito

West Nile Virus

West Nile virus can cause serious health problems, especially in adults over 55 and those with underlying health issues. Learn more about how to protect yourself.

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a young girl and her mother on their way to school, smiling all the way

2025 CHA

Check out the new 2025 Community Health Assessment (CHA) to learn more about the health conditions, disparities, and social factors shaping the well-being of Stanislaus County residents.

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About Us

Who We Are

The Health Services Agency provides health care services to the community via its system of federally qualified health center – look alike outpatient clinics and public health services. The Agency, located in Stanislaus County, California, is about 90 miles east of San Francisco, and 75 miles south of Sacramento.

What We Do

We build community by promoting health and wellness through service and collaboration for all people in Stanislaus County!

What We Offer

  • Two federally qualified health centers – look alike primary care medical offices located in Modesto
  • Urgent Care/After Hours Clinic, located in Modesto
  • Public Health communicable disease control
  • The Women, Infants, and Children (WIC) Nutrition Program
  • California Children’s Services
  • Public Health Field Nursing
  • Public Health Prevention and Education Programs
  • Managed Care for Medi-Cal patients, in partnership with Health Plan of San Joaquin
    • Heather Duvall
    Managing Director

    Biography

    Health Services Agency's managing director, Heather Duvall, smiling warmly and looking at the camera

    Social Media Updates

    StanCounty Health Service Agency on Facebook
    StanCounty Health Services Agency

    Recent Publications


    Places of Interest