Administrative Core Project Summary The Massachusetts Institute for Equity-focused Learning Health System Science (MIELHSS) will be a driving force in promoting scientific progress in Equity-focused Learning Health System Science (E-LHS), developing a robust and diverse pipeline of E-LHS scientists, and creating the culture change and broad alliance that is needed to accelerate progress in Massachusetts and beyond. Our framework for training and research will advance the quintuple aim of healthcare: better health, improved patient experiences, care team wellbeing, and health equity, at lower cost. All Cores, scholar, and community activities will be organized and managed by the Administrative Core. Within this Core, the team of Director and Associate Directors brings a strong, informed, and progressive vision of PCOR/CER and embedded E-LHS research. Together they develop, oversee, and integrate MIELHSS activities, with input from an engaged Internal Executive Committee and external experts who serve on the MIELHSS External Advisory Committee. In addition to training the future workforce, creating data synergies around equity and social drivers of health, and creating an integrated culture of E-LHS, we will leverage the collective capacity of Institute partnerships to advance research methods in embedded LHS, PCOR/CER, and E-LHS. The Administrative Core will also coordinate MIELHSS activities with the administrative and scientific leadership at Harvard Affiliates, UMass, Beth Israel Lahey Health System, Federally Qualified Health Centers, Safety Net Clinics, the Boston VA, and the Massachusetts League of Community Clinics. We will create and enhance mechanisms to facilitate communication and meaningful engagement across Massachusetts, and go beyond traditional dissemination by proactively offering an E-LHS consultation service to help create roadmaps for other MIELHSS organizations interested in adopting successful interventions. The broad and deep expertise of the MIELHSS team, combined with rigorous and regular self-assessments of the program, will enable the MIELHSS to evolve activities nimbly, to embrace healthcare and societal change, and to drive advances in developing future leaders and impactful science in and for learning health systems.