Primary care is increasingly moving toward integration of psychological services; however few studies have been conducted to test the efficacy of such an integrated approach. This paper presents a program evaluation of psychological services provided by doctoral trainees in clinical and counseling psychology within a primary care clinic at an urban academic medical center. It includes: (1) a description of the program, including types of patients served, their presenting problems, and treatments administered and; (2) evidence of the impact of behavioral health services on primary care patients' emotional adjustment and progress on behavioral goals. Intake and follow-up measures of depression, anxiety, smoking, insomnia, chronic pain, and weight loss were collected on 452 adult patients (mean age = 52; 59 % African-American; 35 % uninsured) who were provided brief interventions (mean visits = 2.2) over a 16-month period. Although conclusions are limited by the lack of a control or comparison group, preliminary findings indicate that the integrated behavioral health services provided were effective. Implications and future directions are discussed.