Johanna Lewis, Ph.D.

Serving: 0-6, 6-12, 13-15, 16+, 18+

About Johanna Lewis, Ph.D.

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 published and presented original research at national and international scientific meetings. Dr. Lewis is licensed to practice in New Hampshire, and is a member of the Association for Behavioral and Cognitive Therapies, Tourette Syndrome Association, and the International Obsessive Compulsive Disorder Foundation.

Dr. Lewis uses a cognitive-behavioral approach, including exposure and response prevention, in her treatment of children, adolescents, and adults. Her specialty is in the area of obsessive-compulsive behaviors and tic disorders; she received specialized training in exposure and response prevention (E/RP) from the International Obsessive Compulsive Disorder Foundation, and in the Comprehensive Behavioral Intervention for Tics (CBIT) by the Tourette Syndrome Association. She also received specialized training in the treatment of body focused repetitive behavior disorders including trichotillomania and excoriation disorder. Dr. Lewis works with patients struggling with anxiety 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 including pre-surgical psychological evaluations. Her work with children, adolescents and their families incorporates treatment of childhood behavioral problems, and help with parenting challenges and family conflict.


  • Anger
  • Anxiety
  • Attention Deficit Disorder
  • Bariatric
  • Cancer
  • Chronic Pain
  • Depression
  • Diabetes
  • OCD
  • Panic
  • Parenting
  • Phobias
  • Self-Esteem
  • Locations

    Nashua Trafalgar

    15 Trafalgar Square
    Suite 202
    Nashua, NH 03064


    8 Commerce Drive, Suite 305
    Bedford, NH 03110


    • Aetna
    • Anthem
    • Beacon GIC
    • Blue Cross Blue Shield
    • Cigna
    • Community Health Options
    • Compsych
    • First Health
    • Harvard Pilgrim
    • Medicare
    • Multi Plan
    • Tufts
    • United Behavioral Health/Optum
    • US Family
    • Value Options/Beacon Health