Dr. Ziegler is the Founder and Director at Hudson Valley Center for Cognitive Therapy. Her areas of specialization include depression and anxiety disorders, such as panic, social anxiety, phobias, obsessive compulsive disorder, chronic worry, and post-traumatic stress disorder. Dr. Ziegler earned her PhD from Hahnemann University and completed her two-year post-doctoral fellowship in Cognitive Therapy at the Center for Cognitive Therapy at the University of Pennsylvania.