© 2019, © 2019 Taylor & Francis. Free clinics increase access to care, however, patients frequently miss appointments. The purpose of this quality improvement project was to determine if providing patient navigation affects first appointment no-show rates and hemoglobin A1c (HbA1c) in uninsured patients with diabetes at a free clinic. For 6 months, all patients scheduled for new appointments received weekly patient navigation calls. First appointment no-show rates decreased by 17.7% (p = 0.01). Among patients who received at least one patient navigation call, a significantly greater proportion attended their first appointment (72%) compared to the show rate for those who did not receive a completed call (43%) (p = 0.004).