Using the structure of the group well-child visit model, the St. Luke's Interdisciplinary Group Well Child (IGWC) model integrates primary care and mental health, recognizing the power and importance of dyadic and family relationships in the first years of life. The pilot of this model attempted to harness the "port of entry" afforded with the birth of and adjustment to a baby into the family system. In this model a pediatrician, pediatric nurse, and infant mental health provider partner to create a "holding" environment (Winnicott, 1960) for a cohort of caregivers and their children during regularly scheduled well-child visits. The article describes the structure of group well-child sessions and the authors share preliminary outcomes of the program.