San Ysidro Health Chula Vista on Third Avenue is a federally qualified health center providing integrated medical, dental, and behavioral health services under the Centro de Salud de la Comunidad de San Ysidro nonprofit charter. The 678 Third Avenue location houses 45 physicians across 19 specialties — including family medicine, internal medicine, pediatrics, OB/GYN, psychiatry, and rheumatology — with acute-care cases routed to Sharp Chula Vista Medical Center on Medical Center Drive for inpatient admission. Founded in 1969 in a small three-room house in San Ysidro, the organization has expanded to over 50 clinic and program sites across San Diego County, with this Chula Vista location (NPI 1326486861, HCAI ID 306374498) serving as one of its largest South Bay hubs. Spanish-language consultations are available throughout the clinic, and sliding-scale fee programs based on income and family size extend access to uninsured and underinsured patients in the 91910 ZIP code along the Third Avenue Village corridor. On-site behavioral health screenings feed referral pathways to community counseling providers including South Bay Guidance Center, maintaining continuity between primary care and mental health treatment. The facility's integrated care model co-locates laboratory draws, diagnostic imaging, pharmacy dispensing, and urgent care services within a single campus to minimize fragmentation across medical, dental, and behavioral health encounters.