This issue brief was developed for NCOA by the Medicare Rights Center following an extensive review of Adult Group Medicaid-to-Medicare transition processes in states that have expanded Medicaid under the Affordable Care Act. The paper outlines promising practices and challenges experienced by states related to helping those with expansion Medicaid get screened for and enroll in aged, blind, and disabled (ABD) Medicaid and the Medicare Savings Programs when they become eligible for Medicare.