The purpose of the quality improvement (QI) project was to examine the relationship between amended nursing education concerning diabetes mellitus (DM) Type 2 self-care management incorporating Tune in, Explore, Assist, Communicate, and Honor (TEACH) and Motivational Interviewing (MI) strategies and techniques and the Glycosylated hemoglobin (HgbA1C) of veteran patients with uncontrolled diabetes. The target sample included the 2 licensed practical nurses and 2 registered nurses assigned to 2 primary care teams, and the 10 purposively sampled patients with uncontrolled DM Type 2 from each team. The nurses' competencies were measured through descriptive comparison before and after nursing education implementation using the instrument Patient Education: TEACH for Success Self-Assessment Questionnaire. The nurses' confidence and their perceived importance of the TEACH and MI skills application and skill assessment for promoting health behavior change were tested inferentially with a paired t test before and after nursing education implementation using the instrument Clinician Importance and Confidence Regarding Health Behavior Counseling Questionnaire. The primary care team developed their skills tailored to each patient's needs, considering the guiding principles and premises of the health belief model (HBM). Patients' self-care management knowledge, skills and confidence were improved. The project decreased the elevated HgbA1C of patients measured after the project initiative. The QI project leads to positive social change by decreasing the number of patients with uncontrolled diabetes among the veteran population. The patients and their providers can develop individualized plans of care for diabetes management by educating, redirecting, and evoking behavioral changes in the veteran patients by using a team approach.