Recent decades have witnessed increases in (a) integrated physical and behavioral health services and (b) the treatment of opioid use disorders (OUD) in primary care settings – also known as office-based opioid treatments (OBOT) – using a combination of medication and psychosocial support. Providing these services requires a workforce trained to address addiction’s psychosocial components and interventions addressing addiction’s biological and neurological mechanisms. This paper examines the implementation factors, clinic workflow and roles, and administrative considerations of two models of integrated care in order to identify ways of increasing treatment capacity and expanding OUD treatment uptake in integrated primary care settings.