Health care utilization related to ADHD is of interest because the prevalence of parent-reported ADHD diagnosis among U.S. children and adolescents has increased in recent years. This analysis indicated that during 2012–2013, an annual average of 6.1 million physician office visits in the United States were made by children and adolescents aged 4–17 years with a primary diagnosis of ADHD. Treatment with stimulant medications such as methylphenidate or amphetaminedextroamphetamine was common for ADHD visits, with these medicines provided, prescribed, or continued in about 80% of visits among both children aged 4–12 years and those aged 13–17 years.