William C. Sanderson, PhD, Director

Dr. Sanderson is a clinical psychologist with over 25 years of experience providing treatment and conducting research to help individuals suffering from anxiety disorders and depression.

Dr. Sanderson is Professor of Psychology at Hofstra University (Long Island, NY) where he teaches and conducts research on the nature and treatment of anxiety disorders and depression. 

Dr. Sanderson received his Ph.D. working under the mentorship of Dr. David Barlow at the Center for Stress and Anxiety Disorders. He then completed a Fellowship in Cognitive Therapy with Dr. Aaron T. Beck (the founder of Cognitive Therapy) at the Center for Cognitive Therapy, University of Pennsylvania. 

Dr. Sanderson is a Founding Fellow of the Academy of Cognitive Therapy and is presently a Board Member. He has participated on numerous national committees, including the American Psychiatric Association's DSM-IV Anxiety Disorders Workgroup, served as Editor of The Clinical Psychologist, and was the Chair of the American Psychological Association Division of Clinical Psychology's Committee on Science and Practice (a Task Force aimed at identifying and promoting the practice of evidence-based psychological interventions). 

Dr. Sanderson has published more than 100 articles (including 7 books), primarily in the areas of anxiety, depression, personality disorders, evidence-based treatments, and cognitive behavior therapy. 



Anxiety Disorders and Depression are the most commonly occurring emotional disorders.  More than 30 million adults in the United States suffer from an anxiety or depressive disorder. 

Symptoms such as panic attacks, phobias, worry, social anxiety, obsessions, compulsions, traumatic stress reactions, and depressed mood are treatable.  However, most people suffering from anxiety or depression do not receive appropriate treatment.


The mission of the Anxiety and Depression Clinic at Hofstra University is to:

  1. Provide state-of-the art evidence-based psychological treatments (cognitive behavioral therapy) for individuals suffering from anxiety and/or depression.

  2. Provide thorough diagnostic evaluations to assess current symptoms. This includes a detailed interview conducted by a clinician as well as the administration of self-report questionnaires.

  3. To conduct research on the nature and treatment of anxiety and depression.