Patients' lack of adherence to diabetes self-management education and support (DSMES) recommendations is a challenge for healthcare. One approach to addressing patient noncompliance with DSMES is through education of staff on current guidelines. In an outpatient facility in South Texas, staff training on current DSMES guidelines was recommended as one of the solutions to the problem of Type 2 diabetes mellitus (T2DM) complications observed among clinic patients. An educational module was created to increase staff knowledge on T2DM and to assist staff members in teaching patients to self-manage T2DM. The module was built on the self-management and health promotion models, as well as self-regulation, dual process, and social learning theories. The DSMES educational module created for clinic staff consisted of a lecture presentation on current diabetes information and management guidelines, and a pre and posttest survey based on 13 close-ended questions. The generated data were summarized and analyzed using McNemar's test for paired, binary data. Results revealed that the module was useful for clinic staff in updating their T2DM and DSMES knowledge. Improvement in staff expertise might lead to positive social changes related to improved patient self-care of diabetes and reduction in financial burden in the longer term.