Dena Rabinowitz, PhD, ABPP
      Founder / Clinical Director 

Dr. Rabinowitz is the founder and clinical director of CBPNY. She is a NYS licensed psychologist specializing in Cognitive Behavioral Therapy. She is board certified in Cognitive and Behavioral Psychology and is a Diplomate of the Academy of Cognitive Therapy. She treats children, adolescents and adults and specializes in anxiety and OC-spectrum disorders. While she spends most of her time treating patients directly, she also supervises other psychologists in CBT. She has published numerous articles, gives presentations and workshops , and has been featured on TV, radio and print.

Dalia Gefen, PhD
         Licensed Psychologist

Dr. Gefen is a NYS licensed psychologist and a Nationally Certified School Psychologist.  A graduate of Barnard College, Columbia University, she holds an MS. Ed in School Psychology and a Ph.D. in Educational Psychology from the City University of New York Graduate Center. Dr. Gefen has extensive experience working with children, adolescents, and adults with a wide range of psychological and emotional difficulties, including depression, anxiety and ADHD. She is also skilled at teaching positive coping strategies for stress management utilizing techniques from Cognitive Behavioral Therapy and Dialectical Behavior Therapy.  Prior to joining CBPNY, Dr. Gefen worked at Columbia University Medical Center (NYSPI), in public and private schools, and in outpatient therapy centers where she has successfully helped her clients reach their treatment goals. In addition to her dedication to clinical work, Dr. Gefen is an adjunct Assistant Professor at NYU and at Hunter College where she teaches graduate courses in counseling and education.

Chelsea Grefe, PsyD
     Licensed Psychologist 

Dr. Grefe is a NYS licensed psychologist who received her Masters and Doctoral degrees in School Psychology from St. John’s University. She is a trained clinician and a certified School Psychologist in NY, NJ, and CT. Dr. Grefe enjoys working with children, adolescents, adults, and their families and works with Mood Disorders, Anxiety Disorders, Autism Spectrum Disorders, Attention Deficit/Hyperactivity Disorder, and externalizing behavioral problems. Dr. Grefe is primarily trained in Cognitive Behavioral Therapy and incorporates parent training, social skills training, and dialectical behavioral therapy skills to best meet her clients’ individual needs. She also has additional training in Trauma-Focused Cognitive Behavioral Therapy. Previously, Dr. Grefe has worked with children and adolescents both in day treatment and outpatient settings and served as a School Psychologist in the Westport Public Schools for four years. In addition to her position at CBPNY, Dr. Grefe is a full time psychologist at New York Presbyterian/Columbia University Medical Center’s School-Based Mental Health Program, where she employs individual and group therapy and parent training to children and their families.

Jana Scrivani, PsyD
          Licensed Psychologist

Dr. Scrivani is a clinical psychologist, licensed in New York State and Florida.  She earned her BA in psychology from Douglass College at Rutgers University in New Jersey.  She went on to earn her Psy.D. in clinical psychology from the Graduate School of Applied and Professional Psychology at Rutgers.  She completed her pre-doctoral internship and post-doctoral training at Sharp Mesa Vista Hospital, in San Diego California.  Dr. Scrivani has extensive training in the cognitive behavioral treatment of anxiety and related disorders, mood disorders, and applied behavior analysis, primarily with children and adults with autism spectrum disorder.  Dr. Scrivani operates primarily from a cognitive behavioral perspective, and is also informed by dialectical behavior therapy and mindfulness based interventions.

Brooke Ziegelbaum, PsyD
            Post Doctoral Fellow - Psychologist

​Dr. Ziegelbaum is a NYS psychologist completing a postdoctoral fellowship at CBPNY.  She has extensive training in the application of evidence based treatments such as Cognitive Behavioral (CBT), Dialectical Behavioral (DBT), and Mindfulness therapies, as well as parent training, for a wide array of psychological and emotional difficulties, including anxiety, depression, ADHD, trauma, behavioral difficulties, and relationship problems. Dr. Ziegelbaum earned her Masters and Doctoral degrees from La Salle University and completed her clinical internship at Albert Einstein College of Medicine/Montefiore Medical Center. She has worked in a variety of settings, including Princeton House Behavioral Health, an intensive outpatient/partial hospitalization program for adults, and Westtown School, a private boarding school in Pennsylvania. She is a member of the Association for Behavioral and Cognitive Therapies and has presented at their yearly conference for the past four years. Dr. Ziegelbaum has conducted research on trauma, suicidality, emotion regulation, and mindfulness therapy.