Introduction. This manuscript describes quality improvement interventions with aims (1) to increase identification and follow-up testing of youth with prediabetes and type 2 diabetes (T2D) and (2) to improve outcomes for youth with prediabetes and low-range T2D (HbA1c 6.5–6.9%). Methods. Interventions included (a) dissemination of evidence-based guidelines and (b) creation of in-house weight management (WM) programs and programs to increase prediabetes follow-up testing and T2D self-management. Data from the electronic health record are presented. Results. Between 2009–2020, T2D screening for obese youth increased from 24% to 76%. Two WM programs served 2,726 unique youth for 11,110 billable visits. Youth with prediabetes seen in WM clinic had a lower risk of developing T2D if they attended three or more visits. Teaching self-monitoring blood glucose showed promise for improving HbA1c outcomes in youth with low-range T2D. Conclusions. Interventions have increased identification, access to preventive services, and treatment for youth with prediabetes and T2D.