RecruitingBehavioural interventionCollaborative Care for Treatment of Depression and AnxietyThe goal of this project is to evaluate the effectiveness of a collaborative care model for primary care patients at Kaiser Permanente Colorado (KPCO) with depression and/or anxiety. Collaborative care uses evidence-based short-term treatments delivered to patients over the phone. We will explore the use of cost-efficient automated processes for patient outreach and follow-up, such as care pools of patients and using patient portal messaging, risk-based results routing to providers, and electronic health record (EHR) tools for patient tracking and outcome assessment. Using a cluster randomized design, we will compare results between clinics that are offering collaborative care to those that are not.