Our Staff

Jamie D. Feusner, MD

Program Director

Dr. Feusner is Professor-in-Residence in the UCLA Department of Psychiatry and Biobehavioral Sciences. He has been treating patients in the UCLA Obsessive-Compulsive Disorder Intensive Treatment Program since 2002 and has been Director of the program since 2006.

Reza Tadayon-Nejad, MD, PhD

Staff Psychiatrist

Dr. Tadayon-Nejad is an Assistant Clinical Professor of Psychiatry at UCLA and Visiting Associate faculty in Neuroscience at California Institute of Technology.

His clinical focus is on treatment of refractory depression, OCD and comorbid OCD-Depression by using multimodal treatment options of Transcranial Magnetic Stimulation (TMS), advanced pharmacology and Exposure and Response Prevention therapy.

Shana Doronn, LCSW, PsyD

Program Coordinator, Cognitive-Behavioral Therapist

Shana Doronn LCSW, PsyD is the Program Coordinator and a licensed Clinical Social Worker and Doctor of Psychology in the UCLA OCD Intensive Treatment Program. She worked in the program from 2003-2008 and returned January 2013.
Ana Ribas, PhD

Assistant Clinical Director, Cognitive-Behavioral Therapist

Dr Ana Ribas is the Assistant Clinical Director of the UCLA Adult OCD Intensive Treatment Program, and a licensed psychologist. She is also a cognitive-behavioral therapist and clinical supervisor in the program, bringing over 20 years of clinical experience with a variety of clinical issues in both the US and Europe, including 8 years as a staff psychologist at UCLA Counseling and Psychological Services.
Tom J. Cohn, LMFT

Cognitive-Behavioral Therapist

Tom Cohn is a licensed Marriage and Family Therapist and Clinical Specialist working in the UCLA OCD Intensive Treatment Program, providing individual and group therapy. For the past 15 years, Tom has been treating anxiety and mood disorders, trauma and relationship issues in individuals, couples and families, both in Europe and the US.

Kristen McDonald, Ph.D.

Cognitive-Behavioral Therapist

Dr. Kristen McDonald is a licensed psychologist and cognitive-behavioral therapist at the UCLA Adult OCD Intensive Treatment Program. She brings over 15 years of clinical experience, including roles as Program Director for the Psychosocial Rehabilitation clinic at the VA Palo Alto and most recently as the senior psychologist for the UCLA CAPS satellite clinic at the Behavioral Wellness Center.

Sarosh J. Motivala, PhD

Training Director

Sarosh J. Motivala, PhD is an Assistant Professor in the UCLA Department of Psychiatry and Biobehavioral Sciences and a licensed psychologist. He oversees the Program’s Clinical and Research Training program.
Denise Nelson, PhD

Family Cognitive-Behavioral Therapist

Denise Nelson, Ph.D. is a licensed clinical psychologist. She runs the program’s family education and support group; she also conducts initial interviews to evaluate a patient’s appropriateness for treatment in the program.