Abstract Introduction: Triple-negative breast cancer (TNBC) presents unique challenges due to its aggressive nature and limited treatment options. Black women are disproportionately affected by TNBC, experiencing higher incidence rates and poorer outcomes compared to other racial/ethnic groups. This study aims to evaluate disparities in access to quality cancer care for Black women with TNBC from the perspective of oncology healthcare providers. Methods: From December 2022 to February 2023, the Association of Community Cancer Centers conducted a survey of 84 multidisciplinary care team members who provided care to Black patients with TNBC. The online survey captured quantitative and qualitative data on challenges related to accessing timely TNBC diagnosis and treatment services, care coordination for work-up and biomarker testing, confidence in TNBC treatment, clinical trial enrollment, supportive care services, and related referrals. Additionally, a follow-up focus group was conducted in May 2023 to further interpret select survey data, with a focus on shared decision-making, patient-provider communication, and ways to support cancer programs in improving screening, biomarker testing, and care coordination for individuals with TNBC. Results: Respondents reported several barriers to accessing timely diagnosis and treatment services for Black women with TNBC, including challenges in coordinating care for work-up and biomarker testing, providers' confidence in providing guideline-concordant comprehensive cancer care services for this patient population, enrolling patients in clinical trials, and making referrals for supportive care services. The survey revealed that community cancer programs treated an average of 21-50 patients with TNBC annually, with 31% of them being Black. Perceived patient-level factors contributing to challenges in accessing TNBC diagnosis and treatment included geographic distance to care facilities (14%), health literacy (18%), and insurance-related factors (21%). Practice-level barriers included limited accessibility of practice location (19%), capacity to accommodate new patients (27%), and insurance-related factors (34%). Additional findings highlighted slightly lower provider confidence in areas such as tobacco cessation (only 54% very confident), breast reconstruction (59% very confident), fertility counseling (52% very confident), and coordinating care across a fragmented healthcare system (52% very confident). Respondents identified the most commonly offered comprehensive cancer care services as palliative care (82%), nutrition support (77%), telemedicine (68%), psychological counseling (68%), and financial advocacy (68%). Less commonly offered services include recreational therapy (21%), legal aid (17%), and childcare (16%). Conclusion: This study highlighted the barriers faced by providers in delivering quality cancer care to Black women with TNBC. The findings underscore the importance of addressing challenges related to timely diagnosis and treatment services, care coordination, confidence in treatment options, clinical trial enrollment, and referrals for supportive care services. Insights from the focus group discussions further highlight the need for shared decision-making, improved patient-provider communication, and identification of opportunities to support cancer programs in addressing the specific needs of Black women with TNBC. To advance equity in cancer care, targeted interventions should focus on enhancing provider education, improving care coordination systems, and promoting cultural sensitivity. Efforts should also be made to overcome barriers related to limited accessibility of practice location, and insurance-related factors. By addressing these gaps, providers can play a crucial role in reducing disparities and improving outcomes for Black women with TNBC. Citation Format: Doreen Effange, Niharika Dixit, Ruth O'Regan, Ogori Kalu, Ryann Norcereto, Richard Simonds, Elizabeth Valencia, LaToya Bolds-Johnson, Aubrey Van Kirk Villalobos, Christie Mangir, Elana Plotkin, Karen Tacka, Leigh Boehmer. Evaluating Disparities in Access to Quality Cancer Care for Black Women with Triple Negative Breast Cancer in the US: A Provider Perspective [abstract]. In: Proceedings of the 2023 San Antonio Breast Cancer Symposium; 2023 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2024;84(9 Suppl):Abstract nr PO5-06-10.