We have the most licensed psychologists and psychiatrists practicing in one location in New England

Dr. Lewis is a licensed clinical psychologist with expertise in working with children, adolescents, adults, and their families. She received her Ph.D. in clinical psychology from the Department of Clinical and Health Psychology, Shands Teaching Hospital, at the University of Florida. Dr. Lewis's past positions include a clinical fellowship at the Department of Psychiatry, Children's Hospital/Harvard Medical School in Boston, Massachusetts, and a postdoctoral research fellowship at the Center for Alcohol and Addiction Studies, Brown University where she also received postdoctoral clinical training at Hasbro Children's Hospital in Providence, Rhode Island. Dr. Lewis is licensed to practice in New Hampshire, and is a member of the American Psychological Association, New Hampshire Psychological Association, Association for Behavioral and Cognitive Therapies, Tourette Syndrome Association, and the International Obsessive Compulsive Disorder Foundation.
Johanna Lewis Ph.D.
Dr. Lewis uses a cognitive-behavioral approach, including exposure and response prevention, in her treatment of children, adolescents, and adults. Her specialty is in obsessive-compulsive behaviors and tic disorders; she received specialized training from the International Obsessive Compulsive Disorder Foundation, and in the Comprehensive Behavioral Intervention for Tics (CBIT) program by the Tourette Syndrome Association. She also works with patients exhibiting body focused repetitive behaviors including trichotillomania, skin picking and stereotypic behaviors, as well as patients with anxiety disorders, obesity and eating disorders, and depression. Dr. Lewis's experience in behavioral medicine and in hospital-based settings has allowed her to work with patients requiring assistance managing their chronic medical condition. Her work with children, adolescents and their families also incorporates treatment of childhood behavioral problems, and help with parenting challenges and family conflict.
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