Many studies have documented racial and ethnic disparities in the incidence of preventable complications of diabetes, such as loss of limb, blindness, and kidney disease. Such disparities can occur even in the care delivered by safety net providers at the forefront of treating underserved populations. Using clinical data obtained from electronic health records, one such safety net provider, the Institute for Urban Family Health, will identify factors that contribute to high-quality care and improved health outcomes for diabetes patients. The project will be conducted in New York City at the Institute's health centers in Manhattan and the Bronx. Findings from the study will be used to develop a set of "best practices" to be implemented by the Institute and disseminated to other providers to improve overall diabetes care and reduce disparities based on race or ethnicity. The Institute will provide in-kind support for the project.