County of San Diego Public Health Services San Diego County Public Health Services has over 170 years of history in San Diego County. Public Health Services is the local health department and is part of the Health and Human Services Agency at the County of San Diego.Client Sector: Health Dept/Govt Related Projects: Harm Reduction Readiness Assessment in Southeast San DiegoFacente Consulting is supporting the County of San Diego in assessing readiness for harm reduction services in the southeast region of the county.