Background: The IOM 2013 report recommends supportive oncology care from diagnosis through survivorship to end of life, but large gaps and variations exist. Funded by the Coleman Foundation, the Coleman Supportive Oncology Collaborative (CSOC) is making consistent improvements in supportive oncology care across Chicago, using a best of breed set of metrics from CoC, ASCO-QOPI and NQF. Methods: We compared data from consecutive medical records at 6 cancer centers (3 academic, 2 safety-net, 1 public) between 2014 (n = 843) and Q1 2015 (n = 313), to determine feasibility of the consolidated metrics and assess initial CSOC impact. We included solid and hematologic malignancies. Results: Sites completed two rounds of data collection; 6 of 8 core metrics showed initial improvement (Table). Conclusions: A consolidated, best of breed set of metrics is feasible in assessing supportive oncology quality. Early data indicate effectiveness of the collaborative approach. However, large supportive oncology gaps remain. Collected data will guide further CSOC improvements.