Background: A large and rapidly increasing number of US cancer survivors who have completed active treatment continue to seek oncology care. Low-risk survivors who continue to seek oncology care incur greater costs but experience worse care quality and outcomes than those who seek primary care. In this study, we assessed the feasibility and preliminary effectiveness of START (Supporting Transitions AfteR Treatment), a theory-driven, stakeholder-engaged intervention intended to improve the transition of low-risk survivors to primary care. Methods: To pilot START, beginning in August 2020, we engaged oncology providers (n = 5) and staff (n = 4) at a small community affiliate of our academic comprehensive cancer center. We worked with a nurse navigator, office manager, and physician champion to refine START’s content and delivery to accommodate the needs of a busy community cancer center. We queried electronic health records (EHRs) to assess the feasibility of identifying low-risk survivors and measuring key outcomes (i.e., receipt of recommended health maintenance services). In a formal meeting, we introduced providers to START and helped them to identify survivors whom they agreed should be transitioned to primary care. Front desk staff flagged these survivors to remind providers to transition them in upcoming appointments. Beginning in July 2021, we will conduct in-depth, semi-structured interviews with oncology providers and staff and survivors regarding their perspectives on START’s acceptability, appropriateness, and feasibility. Results: We successfully identified survivors using EHRs and engaged the nurse navigator and providers in identifying the subset of survivors whom they deemed eligible for transitioning to primary care. Preliminary results indicate that START helped providers to transition eligible survivors to primary care. We have successfully engaged cancer center data managers in measuring relevant outcomes using EHRs. Informal provider and staff feedback suggests that START is an acceptable, appropriate, and feasible approach to transitioning survivors. Conclusions: At the conference, we will report on oncology provider and staff and survivor perceptions of START’s acceptability, appropriateness, and feasibility for improving survivorship care delivery and preliminary findings regarding START’s effectiveness in increasing survivors’ receipt of recommended health maintenance services. Findings will be used to refine START and form the basis of a clinical trial to evaluate its effectiveness in improving survivorship outcomes.