Individual instructor consultation is a common service provided by centers focused on educational development in higher education. The importance of this service has been reflected in its history, increasing demand, and strong anecdotal evidence to its effectiveness. However, the extant literature reveals that comprehensive assessment of consultation effectiveness has proved challenging. Thus, the purpose of this paper is to (a) provide an overview of consultation and summarize the relevant work evaluating this service, and (b) propose a comprehensive process for evaluating consultation services that was piloted at one large research-intense university. The goal is to provide a systematic method for the evaluation of consultation services that can be effectively adopted by a variety of collegiate teaching and learning centers.