Introduction-In Western Washington (WA), colorectal cancer (CRC) mortality between 2012-2016, was highest in American Indian/Alaska Natives (AI/AN) and African-Americans (AA) at 20.7 and 18.7 respectively compared to non-Hispanic Whites at 14.1/100,000 people. We hypothesized that time from billed encounters for CRC-associated symptoms to endoscopy completion or CRC stage at diagnosis contributed to observed differences.Methods-Using administrative insurance claims linked to WA cancer registry data, we performed a retrospective cohort study of patients diagnosed with CRC between 2011-2017, with continuous insurance for 15-months prior to diagnosis and a billed encounter for CRC-associated symptoms. We determined the wait-time (days) and stage at diagnosis and conducted logistic regression analysis to identify the factors associated with endoscopy completion.Results-Of the 3,461 CRC patients identified, 57% had stage 2 or 3 disease with no differences in stage by race and 84% completed an endoscopy after a billed encounter for CRC-associated symptoms. The median wait-time to endoscopy was 52 days (IQR 14-218) without differences by Terms of use and reuse: academic research for non-commercial purposes, see here for full terms. http://www.springer.com/gb/openaccess/authors-rights/aam-terms-v1