Maricor Cristina Castillo Javier, MD is a neonatologist in Allied Gardens practicing at Kaiser Permanente Zion Medical Center, 4647 Zion Avenue, San Diego, CA 92120. She earned her medical degree from the University of Santo Tomas Faculty of Medicine and Surgery in 1997 and completed advanced training in neonatal-perinatal medicine, specializing in the care of premature and critically ill newborns. Her practice at the Zion NICU covers respiratory distress syndrome, neonatal sepsis, congenital heart murmurs, jaundice requiring phototherapy, and feeding difficulties in premature infants born before 37 weeks' gestation. Obstetricians coordinate prenatal consultations with the neonatology team when high-risk deliveries are anticipated, and Parvin Mani, MD, FACOG at the same Allied Gardens campus manages that OB-GYN pipeline into the NICU. The unit operates within a labor-and-delivery infrastructure that includes maternal-fetal medicine specialists, anesthesiologists, and pediatric hospitalists, enabling immediate intervention when deliveries require neonatal resuscitation. The 92120 ZIP places the Zion campus in a residential corridor between Waring Road and the I-8 freeway, serving families across Allied Gardens, Grantville, and the broader eastern San Diego service area. Neonatal pharmacotherapy for NICU patients sometimes requires compounded formulations in precise pediatric dosages, and Alvarado Compounding & Retail Pharmacy in the Allied Gardens medical corridor provides that specialized dispensing. Javier's subspecialty training in neonatal cardiac assessment, including evaluation of structural heart murmurs and hemodynamic monitoring, addresses the diagnostic overlap between neonatal cardiology and general neonatology at a hospital managing the full spectrum of perinatal outcomes.