Peer support provided by trained peer support specialists is a proven model for addressing mental health conditions. In 2007, the Centers for Medicare and Medicaid Service (CMS) identified peer support services for mental health to be an evidence-based practice. CMS deems the use of certified peer specialists reimbursable for states that choose to incorporate these services into their Medicaid plans. When a peer is trained/certified by state-sanctioned training/certification programs their time may be billable to Medicaid.