6587 Background: Many individuals are concurrently eligible for multiple sources of government-reimbursed health services (e.g. Department of Veterans Affairs (VA) and Medicare). Unclear is the impact on access, continuity of care, and health disparities. We examined the impact of dual eligibility on outcomes for veterans with colorectal cancer initially treated surgically at VA hospitals. Methods: Retrospective analysis of 13 years of nationwide Medicare and VA utilization data were conducted. Included were patients diagnosed with colorectal cancer, surgically treated for cure, and Medicare-eligible at diagnosis. Survival was analyzed using Kaplan-Meier and Cox regression. Results: Of 6,612 patients treated with curative intent, 4,924 (74%) were staged and 4,550 (92%) were eligible. Of these, 77% and 23% had colon and rectal cancer, respectively. The TNM stage distribution was 2.7% 0, 25.9% I, 33.2% II, 24.7% III, and 13.4% IV. Narrowly defining colorectal services, 13.9 percent of inpatients and 19.7 pe...