OBJECTIVES: The Centers for Medicare and Medicaid (CMS) core set of quality measures for use in Medicaid and the Children’s Health Insurance Program (CHIP) includes a measure for follow-up care within 30 days of a child initiating treatment with an attention deficit disorder (ADHD) medication.  The objective of this study is to document the proportion of children in Mississippi Medicaid who received a follow-up visit within 30 days of initiating a stimulant for ADHD. METHODS: A retrospective analysis was conducted using Mississippi Medicaid medical claims, pharmacy claims and beneficiary eligibility data for the time period July 2012 to December 2013. 2013 was the observation year for initiation of stimulant therapy. Inclusion criteria were age < 21 at time of initiation of therapy, continuously enrolled for 180 days prior and 30 days post prescription start index date (PSID), and PSID occurred during observation year. Beneficiaries were considered to have received follow-up if a claim for an office visit occurred within 30 days of the PSID. RESULTS: