Peer Support Services (PSS) are an evidenced-based mental health model of care that provides community-based recovery services directly to a Medicaid-eligible adult beneficiary diagnosed with a mental health or substance use disorder. PSS provides structured, scheduled services that promote recovery, self-determination, self-advocacy, engagement in self-care and wellness and enhancement of community living skills of beneficiaries. PSS services are directly provided by Certified Peer Support Specialists (CPSS) who have self-identified as a person(s) in recovery from a mental health or substance use disorder. PSS can be provided in combination with other approved mental health or substance use services or as an independent service. Due to the high prevalence of beneficiaries with co-occurring disorders (mental health, substance use or physical health disorders) it is a priority that integrated treatment be available to these beneficiaries.