Medicaid.gov Medicaid largest payer Medicaid Medicaid Medicaid 12 million emergency hospital visits Medicaid CMS Medicaid largest payer of mental health services Medicaid HealthCare.gov Mental Health Parity and Addiction Equity Act largest payer for mental health the EHB extended the MHPAEA Medicaid Parity at Medicaid.gov Medicaid largest payer largest payer CMS Guidance on the Mental Health Parity Final Rule Medicaid single reimbursed by Medicare largest payer for mental health services Mental Health/Substance Abuse Services Options Medicaid https://www.medicaid.gov/medicaid/benefits/bhs/index.html programas de Medicaid Behavioral health services information page https://www.medicaid.gov/medicaid/benefits/bhs/index.html