IntroductionThe potential benefits of breast reconstruction for achieving greater patient satisfaction, wellbeing, and functional outcomes after mastectomy have been widely acknowledged. However, sociodemographic and economic disparities exist in accessing reconstruction. This study aims to characterize the influence of various factors on access to reconstruction and investigate the impact of the Breast Cancer Provider Discussion Law (BCPDL), a legislation that mandates patient education and referral to plastic surgery at the time of breast cancer diagnosis, on utilization of reconstructive services. MethodsRetrospective chart review was performed to collect data on patients who underwent mastectomy at two institutions within the New York-Presbyterian system from 1998-2019. Sociodemographic, past medical history, and treatment approach information were recorded. Interrupted time series analysis and logistic regression were used for statistical analysis. Results6,122 patients were included in the cohort. 3,737 (61.04%) underwent reconstruction and 2,385 (38.96%) did not. We found that older age, Medicaid/Medicare insurance, higher tumor staging, and identity as Asian American/Pacific Islander were negative predictors of undergoing reconstruction. On interrupted time series analysis of the years prior to and the years following the 2010 BCPDL implementation, while there was an immediate increase in the proportion of patients who received reconstruction, the effects were not sustained. ConclusionOur data indicates that patient-physician communication alone may not be sufficient to bridge the gap in reconstructive care. This study highlights the need for consistent plastic surgery referral for sustained equal access to reconstructive services.