The incidence of diabetes is increasing worldwide and ethnic minorities and low income communities are affected the most. While genetic advances hold future promise for individualized diabetes treatment, education on effective medication-taking practices remains a simple diabetes self-management approach. The clinical staff reported concerns regarding poor medication adherence among diabetes patients of a Northeast Houston clinic. The purpose of this project was to deliver a diabetic educational intervention to a sample of adult Hispanic patients from this clinic with uncontrolled diabetes on medication-taking practices to improve medication adherence and glycemic control. This DPI project used a quantitative methodology and pretest-posttest intervention. In addition, the theory of planned behavior was used as a theoretical framework to guide this project. Of the 38 adult Hispanic diabetes patients recruited, 32 of them completed the project (N = 32). A comparative analysis of pre- and post-intervention adherence scores and fasting blood sugar (FBS) finger stick values using the Statistical Package for the Social Sciences (SPSS) was conducted. A McNemar’s test at the 95% CI showed no significant difference between pre- and pos-intervention adherence scores (p = 0.11), while a paired 2-tail t-test showed a statistically significant mean difference between the two groups of finger stick values (M = 25.34, SD = 22.59), t (31) = 6.350, p = 0.001, 95% Cl (17.199, 33.489). These results have implications for practice because findings from this project can provide the basis for an education protocol to educate diabetes patients on good medication behavior that can improve the diabetes care of the patients in this healthcare practice.