New Horizons of the Treasure Coast is the largest mental health and addiction recovery provider on the Treasure Coast (and beyond), serving 15,000 children and adults annually through inpatient crisis services, 24-hour help line, and mobile response team, and outpatient programs conveniently located across Indian River, Martin, Okeechobee, and St. As a Licensed Mobile Responder, your Primarily role is to respond to MRT/211 calls for crisis intervention services in any setting in which a behavioral health crisis is occurring, including at schools, homes, emergency rooms, or other areas as assigned by the Team Leader, Program Manager, or Division Director.