He completed his internship with Philhaven in Mount Gretna. Dr. Gill has been on staff with Psychological Health Affiliates since 2001. Dr. Gill is passionate about marriage and family therapy. He specializes in the treatment of children ages four through teenage years. Obsessive Compulsive Disorder, ADHD, depression, anxiety, and Tourette's Disorder are among those concerns that he addresses with children and their families.