It is important to understand the effects of a new care model on health professionals' satisfaction, which may help inform organizations' decisions regarding the adoption of the model. This study evaluates the effect of the Guided Care model of primary care on physicians', Guided Care Nurses' and practice staff satisfaction with processes of care for chronically ill older patients. In Guided Care, a specially educated registered nurse works with 2-5 primary care physicians, performing 8 clinical activities for 50-60 chronically ill older patients. This model was tested in a 3-year matched-pair cluster-randomized controlled trial with 14 pods (teams of physicians and staff) randomly assigned, within pairs, to provide Guided Care or usual care. Physicians and Guided Care Nurses were surveyed at baseline and annually for 3 years. Staff were surveyed at baseline and 2 years later. Physicians' satisfaction with chronic care processes, knowledge of patients, and care coordination were measured, as well as Guided Care Nurses' satisfaction with chronic care processes and staff perceptions of quality of care. Findings suggest that Guided Care improved physician satisfaction with patient/family communication and management of chronic care, and it may bolster staff beliefs that care is patient oriented. Differences in other aspects of care were not statistically significant.