Services Medication Assisted Treatment Program (MAT) Locations Access Health Louisiana Primary Care at Pythian St. Charles – Luling C.H.C St. Tammany – Slidell C.H.C St. Tammany CHC Behavioral Health in Mandeville St. Tammany CHC Behavioral Health in Slidell Tangipahoa C.H.C Washington C.H.C Woodworth C.H.C.