Delayed intervention Based on initial findings from the evaluation of the intervention as delivered at baseline, we will adjust the intervention to focus on those activities from the initial intervention found to be most helpful for successful implementation and use of a diabetes registry. This modified intervention will be delivered, using a crossover design, to the initial control practices. Since the project timeline will not allow for long-term follow up of these practices we will compare the effectiveness of the initial and delayed interventions by comparing effects on patient outcomes observed in the first post-intervention assessment of initial intervention practices to effects on patient outcomes collected in the final observation period in delayed intervention practices.