Alice Gao, Dr. Liz Krans, and Dr. Marian Jarlenski found that later diagnosis of opioid use disorder (OUD) in pregnancy among non-White/Hispanic women partially explains the disparities in medication for opioid use disorder (MOUD) receipt in this population. Universal substance use screening earlier in pregnancy, combined with connecting patients to evidence-based and culturally competent care, is an approach that could close the observed racial-ethnic disparity in MOUD receipt.