San Diego County Mental Health in Chula Vista operates from 730 Medical Center Court as a division of the County of San Diego Health and Human Services Agency's Behavioral Health Services department. The facility serves as the county's Emergency Screening Unit for individuals under 18, processing crisis evaluations and Welfare and Institutions Code Section 5150 psychiatric holds within the Medical Center Drive corridor anchored by Sharp Chula Vista Medical Center. MHSA (Mental Health Services Act) funding supports the Psychiatric Emergency Response Team rapid-response program, which provides face-to-face crisis intervention within 24 hours of initial referral to prevent psychiatric hospitalization. Eligibility covers San Diego County residents aged 18 and older with serious and persistent mental illness, with Medi-Cal recipients, uninsured, and under-insured individuals assessed on a sliding scale using the State of California's Uniform Method to Determine Ability to Pay criteria, and medication management coordinated through Chula Vista Pharmacy for psychotropic prescriptions. Crisis stabilization services employ the Columbia Suicide Severity Rating Scale and standardized lethality assessments to triage patients into outpatient safety planning, intensive outpatient referral, or acute inpatient transfer pathways.