Objective <p>To evaluate the effectiveness of a Continuous Training Program on the knowledge and professional development of healthcare providers in Healthy Community Clinics in Jordan.</p> Background <p>Ongoing professional development for healthcare providers is essential for delivering high-quality care to patients with chronic conditions.</p> Design <p>A quasi-experimental, post-test-only design was utilized across fourteen health directorates in Jordan.</p> Methods <p>Thirteen training sessions, each lasting two days, were conducted in large educational centers between July 20 and August 15, 2024. 215 healthcare providers participated in the Healthy Community Clinic Refresher Training Program. Data were collected at the end of the training program using a structured post-test knowledge questionnaire and a professional development scale.</p> Results <p>The mean age of healthcare providers was 39.4 ± 7.3 years, with a notably high representation of females (92.6%) and nursing professionals (87.9%). Over half of the healthcare providers demonstrated high scores in all professional development items. The mean post-test knowledge score was 32.01 ± 5.09. A one-sample t-test indicated a significant difference from the target score (t = 23.017; <i>p</i> = 0.001, 95% CI -8.67 to -7.31). Gender was a significant factor in communication assessment (t = 6.470; <i>p</i> = 0.001), and the frequency of attendance at the Healthy Community Clinic Refresher Training Program was strongly associated with overall post-test scores, as well as knowledge of diabetes mellitus, hypertension, communication skills, and implementation strategies (<i>p</i> = 0.021, 0.004, 0.001, and 0.001, respectively).</p> Conclusion <p>The findings reveal a favorable outcome regarding professional development, indicating that sustained training initiatives can enhance healthcare providers’ competencies and performance in community health settings.</p> Trial registration <p>: Clinical trial number: not applicable.</p>