CONCLUSIONS: Our data suggests that this low-barrier, place-based primary care RICHER model was able to reach a medically, developmentally, and socially complex population living in disenfranchised urban neighborhoods. Half of the patients identified in our review had neurodevelopmental concerns and a third had mental health concerns, in contrast to an estimated 17% prevalence for mental health, behavioral, or developmental disorders in North American general pediatric aged populations. This…