Background: A challenge in supportive oncology, is training the HCP workforce. A collaborative funded by The Coleman Foundation of 30+ clinicians (faculty) from 25 institutions (academic, community & safety net) developed a unique and easily accessible supportive oncology training curriculum (Trosman JR JNCCN 2017). Methods: Using data provided by The National Comprehensive Cancer Network (NCCN) Continuing Education team, we evaluated completion rates of survivorship and supportive oncology education courses using simple frequencies. Results: Over 4748 on-line courses were completed (pretest, course, post-test, evaluation) of 7184 accessed. Of 4748 courses, nurses completed 45%, physicians 17%, advance practice clinicians 16%, and others 22% (social workers, chaplains, MAs). Course completion improved from 65% to 69% after articles describing collaborative work were published in Cure and Oncology Nursing News, p = 0.0014. Conclusions: A variety of HCPs successfully completed supportive oncology education via the NCCN’s education portal. These on-line courses are an efficient way to train HCPs in supportive oncology. Curriculum advertising improves course completion.