Staff Members
Dr. Robert L. Leahy
B.A., M.S., Ph.D., Yale University, Director,
Dr. Leahy Completed a Postdoctoral Fellowship in the Department of Psychiatry, University of Pennsylvania Medical School…
Dr. Brianne Dickey
Ph.D. licensed Psychologist
Brianne Dickey, Ph.D., is a New York State licensed psychologist at the American Institute for Cognitive Therapy…
Dr. Nicholas Demas
Ph.D., Licensed Psychologist
Nicholas Demas, Ph.D., is a New York State licensed psychologist with a broad range of experience in cognitive behavioral therapy…
Allison Funk, Ph.D., is a Postdoctoral Fellow at the American Institute for Cognitive Therapy. She received her Bachelor’s degree…
Dr. Melissa Horowitz
PsyD, Director of Clinical Training, Body Image and Eating Disorders
Dr. Horowitz is a New York State licensed psychologist with extensive experience in cognitive behavior therapy (CBT), dialectical behavior…
Dr. Aspasia Hotzoglou
Ph.D., Licensed Psychologist
Dr. Hotzoglou is a licensed psychologist at the American Institute for Cognitive Therapy. She is trained in cognitive behavioral therapies…
Dr. Ashleigh Rutherford is a postdoctoral fellow at the American Institute for Cognitive Therapy. She received her bachelor’s degree…
Ph.D., Director of Child and Adolescent Program
Dr. Paula is a New York State licensed psychologist with extensive experience in cognitive behavior therapy (CBT), dialectical behavior…
Dr. Kathleen Mattran Taylor
Ph.D., DBT Program Coordinator, Clinican
Dr. Westphal is a licensed psychologist who received her B.A. (Honors) in Social and Political Sciences from the University of…
Dr. Maren Westphal
Ph.D., Clinician
Dr. Wupperman is a New York State licensed psychologist who is currently an associate professor at John Jay College/City University of…
Helen Butleroff Leahy
RD, CDN
Ms. Leahy offers nutrition counseling specializing in weight management, eating disorders, Type II Diabetes, GERD, IBS and medical…
Jane Kaiser
Research & Editorial Assistant
Jane Kaiser is a senior at Barnard College at Columbia University. After she completes her Bachelor’s degree in Psychology in May 2022…
Betty Gibbs
Clinical Intake Coordinator
Betty Gibbs is a Clinical Intake Coordinator and She graduated from the University of Michigan in 2024 with a degree in Biopsychology…
Yuechen Sun
Clinical Intern
Yuechen Sun is a graduating senior at Barnard College majoring in psychology. She plans to pursue graduate…
Celia Ziliak
Clinical Intern
Celia Ziliak is a senior at Barnard College of Columbia University studying Psychology and Women’s, Gender, & Sexuality Studies…
Betty Gibbs
Clinical Intake Coordinator
Betty Gibbs is a Clinical Intake Coordinator and She graduated from the University of Michigan in 2024 with a degree in Biopsychology…
Betty Gibbs
Clinical Intake Coordinator
Betty Gibbs is a Clinical Intake Coordinator and She graduated from the University of Michigan in 2024 with a degree in Biopsychology…
Yuechen Sun
Clinical Intern
Yuechen Sun is a graduating senior at Barnard College majoring in psychology. She plans to pursue graduate…
Celia Ziliak
Clinical Intern
Celia Ziliak is a senior at Barnard College of Columbia University studying Psychology and Women’s, Gender, & Sexuality Studies…
Dr. Graham Reynolds
Ph.D., Director of Anxiety and Obsessive Compulsive Treatment Program,
Dr. Reynolds is a New York State licensed psychologist with a broad range of experience in cognitive behavioral psychology…
Dr. Kathleen Mattran Taylor
Ph.D., DBT Program Coordinator, Clinican
Dr. Taylor is a licensed psychologist in New York. Dr Taylor creates a collaborative therapeutic process that is focused on how to …
Dr. Maren Westphal
Ph.D., Clinician
Dr. Westphal is a licensed psychologist who received her B.A. (Honors) in Social and Political Sciences from the University of…
Dr. Peggilee Wupperman
Ph.D. (University of North Texas), Clinician
Dr. Wupperman is a New York State licensed psychologist who is currently an associate professor at John Jay College/City University of…
Ph.D., Associate Director of the American Institute for Cognitive Therapy
Dr. Oliff is a New York State licensed psychologist, Founding Fellow and Diplomate of the Academy of Cognitive Therapy and a membe…
B.A. Research and Editorial Assistant
Ms. Silber received her Bachelor’s degree in Psychology from Barnard College at Columbia University in 2021…
B.A., Intake Coordinator / Research Assistant
Ms. Johnson received her Bachelor of Arts from Barnard College in 2020. Before joining the American Institute…