CMS data: Fewer adults, children covered by Medicaid used mental health services last year May 16, 2021 Auto Bot CHIP, CMS, Medicaid, mental health, Policy, Telehealth, Telemedicine 0 Use of mental health and substance use services fell by double digits last year for adults and children covered by Medicaid and CHIP, according to a report by the Centers for Medicare and Medicaid Services.