 The objective of this study is to test whether BP control can be improved by physician education and feedback provided through the development of physicianpharmacist collaborative teams. The rationale for this proposal is generated from studies demonstrating that physician knowledge, quality of prescribing, and attainment of treatment goals can be improved when physicians collaborate with clinical pharmacists. Previous studies have suffered from insufficient sample size and controls and did not include a structured intervention. This study will address these gaps in knowledge by conducting a randomized, prospective study in 5 clinics 2 intervention and 3 control with 27 physicians who care for 180 patients with uncontrolled BP. The structured intervention will involve clinical pharmacists who evaluate BP therapy and treatment strategies and make specific recommendations to the physician. Patients will be seen at baseline and at 2, 4, 6, 8, and 9 months, at which time random zero BP measurements will be performed. The specific aims of this study are 1 to determine if better BP control can be achieved by the use of physicianpharmacist teams that utilize physician education and feedback when compared to usual care, 2 to determine if improvements in BP control are related to an increase in physician knowledge of and adherence to BP guidelines when they are involved in physicianpharmacist teams, and 3 to determine if changes in BP control are associated with the level and scope of the physicianpharmacist relationships. This model utilizes an innovative system approach to improve BP control. This intervention has the potential to achieve marked improvements in BP control. This model could become one additional strategy to help achieve the BP goals for Healthy People 2010. 