COVID-19 vaccination rates are significantly lower among people covered by Medicaid than the general population. With COVID-19 vaccination rates plateauing and persistent vaccine hesitancy among remaining unvaccinated populations, Medicaid programs and health plans are developing innovative approaches to encourage their members to become vaccinated. The National Academy of State Health Policy and Duke-Margolis Center for Health Policy hosted a roundtable discussion on how immunization stakeholders are working together to address challenges and promote equitable vaccination access to improve COVID-19 vaccination rates among Medicaid enrollees.