Saint Charles Hospital Port Jefferson MMD 200 Belle Terre Road, 2 North, Port Jefferson, NY 11777 631-474-6981
Saint Charles Hospital MMD 1 200 Belle Terre Road, 3rd Floor, 3 West, Port Jefferson, NY 11777 631-474-6981
Saint Charles Hospital Chemical Dependency Inpatient Program 200 Belle Terre Road, Port Jefferson, NY 11777 631-474-6233
John T Mather Memorial Hospital Outpatient Chemical Dependency Clinic 100 Highlands Boulevard, Suite 101, Port Jefferson, NY 11777 631-331-8200