TransforMED, a nonprofit initiative established by the American Academy of Family Physicians (AAFP) to transform primary care practice, recently launched a two-year demonstration of this patient-centered care model in 36 primary care practices in the United States. The participating practices will be expected to implement a comprehensive set of innovations to improve health care quality, safety, efficiency, patient-centeredness, access to care, and information systems. Although the AAFP is funding a multmillion-dollar national evaluation, there is currently no plan to assess the impact of the model from the patient's perspective. This project will survey patients served by the intervention to determine if it is helping to make care more patient-centered. Both TransforMED and the AAFP will disseminate evaluation findings as they become available to family practitioners across the country.