Roxane M. Santiago, MD, FAAP, practices board-certified pediatrics in Chula Vista's Third Avenue Village district through the Children's Primary Care Medical Group at 865 Third Avenue. A UC San Diego School of Medicine graduate, the practice conducts well-child exams, immunization series administration, and developmental screening — a pediatric scope that coordinates dental-developmental milestones with Bonita Point Dental Arts for early eruption monitoring and sealant application. Hospital affiliations with Sharp Chula Vista Medical Center and Rady Children's Hospital San Diego provide two-campus inpatient pediatric access for acute admissions and subspecialty consultation. Vision acuity testing and hearing screening performed during annual well-child visits generate referrals to community optometrists including Villa Optometry for corrective lens fitting and pediatric amblyopia follow-up. The practice's treatment profile includes Lennox-Gastaut syndrome management, generalized anxiety disorder assessment, and health risk evaluation using validated pediatric screening instruments across the newborn-through-adolescent age range.