IN BRIEF Patient awareness of prediabetes and an increased diabetes risk is crucial to diabetes prevention. This article reports on a study investigating perceptions of diabetes risk among U.S. adults with prediabetes and the role of physician communication about risks in influencing patient perceptions. This study demonstrates that few patients with undiagnosed prediabetes are even told that they are at high risk for diabetes. This study provides further evidence that diabetes prevention requires improved patient-centered care, which likely begins with the delivery of adequate information to patients.