Subjects include both health care professionals and their patients. The included health care professionals are primary care clinicians practicing at VA Palo Alto who have their own panels of patients for whom they provide primary care. Included patients are patients of these primary care clinicians; the patients must have a diagnosis of hypertension and at least one blood pressure in the previous year that was above guideline-target for that patient, and patient must be approved by the primary care clinician as suitable for a group medical visit.