Abstract Implementing Fit Kit Colorectal Cancer (CRC) Screening in At-Risk Populations Study was a trial of 4 evidence-based strategies to increase colorectal cancer (CRC) screening in the primary care setting. The focus of this report is the factors that impacted implementation of these interventions in a safety net setting. Using the RE-AIM (Reach Effectiveness Adoption Implementation Maintenance) framework, we evaluated providers’ assessments of the impact of the intervention on the 2 main outcomes: 1) CRC screening ordered; 2) CRC screening completed in a diverse population with more than 3,000 individuals overdue for screening. Methods: We conducted a Qualtrics evaluation survey among 51 staff members identified as individuals involved in cancer screening in a safety net primary care setting that serves over 38,000 individuals in New Haven, CT. The staff surveys are part of the evaluation of the program at one-year post-intervention. Invited staff were provided links through group emails from the provider partners requesting participation in a 2–5-minute Qualtrics survey. Questions on job title, role in CRC screening, and whether and how the interventions (referred to as “the study”) impacted CRC screening in this facility, understanding of the procedures in place to facilitate scheduling and completion of CRC screening, and the barriers and facilitators that impact CRC screening completion were queried. Descriptive results will be mapped to relevant aspects of the RE-AIM framework. Results: Twenty (39%) staff members completed the survey including 9 (45.0%) registered nurses/advanced practice registered nurses, 6 (30.0%) physicians, 2 (10.0%) physician assistants, and 3 (15.0%) individuals in other roles, e.g., schedulers. 87.5% (n=14) were authorized to order colorectal cancer (CRC) screening tests, either colonoscopy or stool-based testing, for their patients. By self-report, effectiveness of the intervention on provider behavior was limited with only 22.2% reporting that the study impacted decisions to order CRC screening. Yet 41% of providers in the study placed a “blanket order” for all individuals who were due for CRC screening even if they were not seen for an appointment during the study period. Barriers to completion of CRC screening were “patient factors” (37%) and insufficient consultation time during appointments (27.3%). Most health care providers cited COVID-19 as a significant factor in delivering an effective CRC screening program. Provider suggestions to improve CRC screening uptake included posted information in exam rooms, use of clinical decision-making tools in the electronic medical record to determine if colonoscopy or FIT (stool-based) testing is the best option, nurse visits to teach use of stool-based testing and making in-home test kits available over the counter in pharmacies. Discussion: Although the results from this small sample of providers has limited generalizability, the findings will be useful in designing scalable interventions in similar high volume primary care settings. Citation Format: Beth A. Jones, Denise L. Stevens, Sakinah Suttiratana, Sarah A. DeGiovanni, Laney Zhang, Margarita Vargas-Torres, Michael Couturie, Levita Robinson. Provider input following implementation trial to address overdue colorectal cancer screening [abstract]. In: Proceedings of the 16th AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2023 Sep 29-Oct 2;Orlando, FL. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2023;32(12 Suppl):Abstract nr C116.