Gary Mitchell, MSW, LCSW Mr. Mitchell, is a clinical social worker that specializes in the treatment of children and adults with anxiety disorders and related problems.  He is the Assistant Director of the Anxiety Disorders Center of St. Louis Behavioral Medicine Institute, which specializes in the treatment of refractory and complicated cases.  Mr. Mitchell has also worked in residential treatment providing Cognitive, Behavioral and Family Therapy for emotionally disturbed children.  He is an Adjunct Assistant Professor at the St. Louis University School of Social Services, where he teaches Cognitive-Behavioral Family Therapy.