Introduction: This paper is a report on a study exploring a potential typology of primary care patients referred for integrated behavioral health care (IBHC) services. We considered whether primary care patients could be grouped into meaningful clusters based on perceived need for behavioral health services, barriers to accessing care, and past-year service utilization. We also described the development of a working partnership between our university-based research team and a federally qualified health center (FQHC). Method: A total of 105 adult primary care patients referred for same-day behavioral health appointments completed a brief self-report questionnaire assessing past-year behavioral health concerns, service utilization, and perceived barriers to utilization. Results: Hierarchical and k-means cluster analyses revealed 3 groups: (a) Well-Served patients, characterized by high perceived need for services, high service use, and low barriers to service use (40%); (b) Underserved patients, characterized by high perceived need, low service utilization, and high barriers to service use (20%); and (c) Subclinical patients, characterized by low perceived need, low service use, and low barriers to service use (20%). Clusters were reliably differentiated by age, primary language, insurance status, and global functioning. Discussion: We found primary care patients could be grouped into 3 categories and that 60% (Underserved and Subclinical) represented groups less commonly seen in traditional mental health (MH) settings. IBHC may be a promising approach for extending the reach of MH care, and partnerships between FQHCs and university-based research teams may be a promising approach for conducting research on the IBHC service-delivery model.