Staff Members

The clinical psychologists at AICT provide the highest quality cognitive-behavioral treatment for
depression, anxiety, phobias, eating disorders, personality disorders, child and adolescent problems and family and marital problems.
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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

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…

Nicholas Demas

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

Dr. Allison Funk
Ph.D., Psychologist 

Allison Funk, Ph.D., is a Postdoctoral Fellow at the American Institute for Cognitive Therapy. She received her Bachelor’s degree…

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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…

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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…

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Dr. Susan Trachtenberg Paula
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…

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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 …
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Dr. Westphal is a licensed psychologist who received her B.A. (Honors) in Social and Political Sciences from the University of…

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Dr. Peggilee Wupperman
Ph.D. (University of North Texas), Clinician

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…

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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

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

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

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

Yuechen Sun
Clinical Intern

Yuechen Sun is a graduating senior at Barnard College majoring in psychology. She plans to pursue graduate…

Celia Ziliak

Celia Ziliak
Clinical Intern

Celia Ziliak is a senior at Barnard College of Columbia University studying Psychology and Women’s, Gender, & Sexuality Studies…

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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…

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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 …

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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…

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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…

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Dr. Laura Oliff
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…

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Alana Silber
B.A. Research and Editorial Assistant

Ms. Silber  received her Bachelor’s degree in Psychology from Barnard College at Columbia University in 2021…

Camille Johnson
Camille Johnson
B.A., Intake Coordinator / Research Assistant

Ms. Johnson received her Bachelor of Arts from Barnard College in 2020. Before joining the American Institute…