An article recently published online in the American Journal of Public Health provides an overview of the Transformed Medicaid Statistical Information System Analytic Files (TAF), an underused data set in maternal health research. The article, Using Modernized Medicaid Data to Advance Evidence-Based Improvements in Maternal Health, compares the TAF with other major maternal health data sets, highlights limitations of the TAF, and provides strategies to accelerate research improving maternal health and health equity.