Meet our staff of Professionals

Call Now - Manhattan: 212-532-2467 - Lake Success: 516 390-3525

Jennifer Byrnes, Ph.D.

Jennifer Byrnes, Ph.D., Licensed Clinical Psychologist

Dr. Byrnes is a founding member and partner at CCDBT where she serves as the Director of Training and the Director of Research. A member of the original DBT team at Long Island Jewish Medical Center, Dr. Byrnes has experience running DBT skills groups for both adolescents and adults, as well as providing individual DBT therapy. Research conducted at CCDBT under the leadership of Dr. Byrnes has focused on demonstrating the effectiveness of DBT in decreasing depression and suicidal ideation among adolescent participants. Research has also examined individual factors predicting successful treatment completion in DBT as well as familial factors that impact positive change among the adolescents and their families who received treatment at CCDBT. Dr. Byrnes currently sits on the board of the Behavioral Health Research Consortium (BHRCH), a private institutional review board based out of Seattle, for psychological researchers who conduct research independently of a university or hospital. Dr. Byrnes received training in Mindfulness Based Stress Reduction (MBSR) from Jon Kabat-Zinn and Saki Santorelli in 2011 and has been running MBSR groups at CCDBT ever since. In addition, Dr. Byrnes has conducted trainings in Mindfulness practice in a variety of private settings outside of CCDBT. Dr. Byrnes has served as a consultant on family therapy issues at Sagamore Children’s Hospital and has taught Behavior Therapy to graduate students at Adelphi University. Dr. Byrnes received her BA from Tufts University and her Ph.D. from St. John’s University where she also received a certificate in Family Therapy.

Michal Barnea, Psy.D.

Michal Barnea, Psy.D., Post Doctoral Fellow

Dr. Barnea received her Psy.D. in School Psychology in 2017 from St. John’s University. She completed her pre-doctoral internship at Robert Louis Stevenson School, a therapeutic high school in New York, NY. Dr. Barnea has received extensive training in evidence-based treatments, including Cognitive Behavior Therapy (CBT), Dialectical Behavior Therapy (DBT), and Exposure and Response Prevention (ERP) for obsessive compulsive disorder. She has completed an intensive training in DBT offered by Behavioral Tech, LLC. Dr. Barnea has worked with children, adolescents, young adults, and their families in a variety of settings including inpatient, day treatment, outpatient, school, and college counseling programs. She currently provides individual DBT and CBT and co-leads DBT skills groups for adolescents and adults at the Lake Success CCDBT office.

drucker

Aaron D. Drucker, Psy.D., Licensed Psychologist

Dr. Drucker has been a member of the DBT team since 2001. He attended various training by Behavioraltech, LLC. Dr. Drucker was a staff psychologist at the Division of Child and Adolescent Psychiatry, at Schneider Children’s Hospital for the past seven years providing treatment for adults, children, adolescents and their families. In addition, Dr. Drucker was the consulting psychologist for the Cystic Fibrosis Clinic and the Allergy and Immunology Clinic at Schneider Children’s Hospital during his tenure. Dr. Drucker received his M.A. and Ed.M from Teacher’s College, Columbia University in 1995 and his Psy.D. from the California School of Professional Psychology- Alameda in 2000.

ellberger

Maddy Ellberger, L.M.S.W., M.S.Ed., Licensed Social Worker

Ms. Ellberger received her Master of Science in Clinical Social Work from Columbia University School of Social Work in 2015. She completed her clinical internship at New York Presbyterian – Columbia University Medical Center, where she completed a service in the pediatric outpatient psychiatry unit as well as the pediatric emergency department. Maddy has received extensive training in evidence-based treatments including Cognitive Behavior Therapy (CBT), Dialectical Behavior Therapy (DBT), Parent Management Traning (PMT), Trauma-Focused Cognitive Behavior Therapy (TF-CBT), and Prolonged Exposure (PE); and has provided treatment to children, adolescents, families, and adults with anxiety, mood, trauma/stressor, and personality disorders, as well as trauma focused training to military personnel in Israel. She has completed intensive training in Dialectical Behavior Therapy for adults and adolescents offered by Behavioral Tech, LLC. In addition to her Masters of Science in Clinical Social Work, Maddy also holds an MSEd. in special education from Bank Street College of Education, and has extensive experience working with children and families on school related concerns including Disruptive Behavior Disorders and behavioral concerns in school, Individualized Education Plans, and Special Education Service Provision. Maddy currently provides individual CBT and DBT and co-leads DBT skills group for adolescents and adults. In addition, she co-leads mindfulness workshops in a variety of settings.

Elizabeth Ellman, Psy.D.

Elizabeth Ellman, Psy.D., Post Doctoral Fellow

Dr. Ellman received her Psy.D in Clinical Psychology in 2017 from Ferkauf Graduate School of Psychology at Yeshiva University. She completed her pre-doctoral internship at Mount Sinai St. Luke’s and Mount Sinai West Hospitals in New York, NY. Dr. Ellman has received training in Psychodynamic Psychotherapy, Cognitive Behavior Therapy (CBT), and Dialectical Behavior Therapy (DBT). She completed an intensive training in DBT offered by Behavioral Tech, LLC. Dr. Ellman has worked with teens, emerging adults, and adults presenting with a wide range of difficulties including personality, anxiety, mood, and substance use disorders. She has provided therapy in a variety of settings including outpatient mental health, college counseling, inpatient hospital, therapeutic high school, and detoxification and rehabilitation. She currently provides individual DBT and CBT, and co-leads DBT skills groups for adolescents and adults at the Lake Success CCDBT office.

fava

Joanna Fava, Ph.D., Licensed Psychologist

Dr. Fava earned her Ph.D. in Clinical Psychology from Fordham University in 2012. Prior to receiving her doctorate, Dr. Fava received a Masters degree in Forensic Psychology from John Jay College of Criminal Justice. She completed a pre-doctoral internship at the University of Medicine and Dentistry of New Jersey (UMDNJ) in Newark. Her research has focused on developmental influences on emotion dysregulation, treatment considerations with mandated clients, and understanding suicidal behaviors. Dr. Fava has been extensively trained in Cognitive Behavioral Therapy (CBT) for the treatment of anxiety, trauma, and substance abuse. She completed an intensive training in Dialectical Behavior Therapy (DBT) offered by Behavioral Tech, LLC, and has been utilizing DBT since 2006. Dr. Fava has provided empirically supported treatments in various clinical settings including hospitals, community mental health clinics, and correctional facilities. Currently, Dr. Fava provides individual CBT and DBT and co-leads DBT skills groups for adolescents and adults.

gellman

Liz Gellman, Psy.D., Licensed Psychologist

Dr. Gellman received her Psy.D. in Clinical-School Psychology from Ferkauf Graduate School of Psychology at Yeshiva University in 2011. She completed her pre-doctoral internship at Montefiore Medical Center. Dr. Gellman has received extensive training in Cognitive Behavioral Therapy (CBT), Dialectical Behavioral Therapy (DBT), and Mindfulness Based Stress Reduction. She has provided treatment to children, adolescents, and adults with anxiety, mood, behavioral and personality disorders in a variety of settings, including schools, community mental health clinics, and hospitals. Currently, Dr. Gellman provides individual CBT and DBT and co-leads DBT skills groups for adolescents and adults at both the Long Island and the CCDBT Manhattan offices. She also co-leads CCDBT’s 8 week Mindfulness Based Stress Reduction course and co-leads mindfulness workshops in various settings.

Olga Jablonka, Ph.D.

Olga Jablonka, Ph.D., Post Doctoral Fellow

Dr. Jablonka received her Ph.D. in Clinical Psychology from St. John’s University. She completed her predoctoral internship at Northwell Health (formerly known as Long Island Jewish Medical Center), where she provided comprehensive care to children, adolescents, and families in both inpatient and outpatient settings. Dr. Jablonka has been extensively trained in various evidence-based treatments, including Cognitive Behavioral Therapy (CBT) and Dialectical Behavior Therapy (DBT), and has expertise in the treatment of anxiety, obsessive-compulsive disorder, and trauma. She has a strong interest in parent training, and has conducted research on the role of parental emotions in disciplinary practices. Dr. Jablonka currently provides individual CBT and DBT treatment and co-leads DBT skills groups for adolescents and adults.

lebowitz

Allison Lebowitz Elkoubi, Ph.D., Licensed Psychologist

Dr. Lebowitz received her Ph.D. in Clinical and School Psychology from Hofstra University in 2009. Dr. Lebowitz has received extensive training in Cognitive Behavioral Therapies (CBT), with intensive training in Exposure and Response Prevention (ERP), commonly used in the treatment of various anxiety disorders. She has also received intensive training in Interpersonal Social Rhythms Therapy (IPSRT), an evidence-based treatment developed for treating Bipolar Disorder. Dr. Lebowitz has attended DBT trainings conducted by Behavioral Tech, LLC, the training company developed by Marsha Linehan, Ph.D. Additionally, she has extensive training in the assessment and diagnosis of intellectual, academic, personality, and behavioral difficulties. Dr. Lebowitz has worked as a treatment provider in various settings including schools, community mental health clinics, hospitals, and college counseling centers. Currently, Dr. Lebowitz provides individual DBT and CBT and serves as a DBT skills group co-leader.

Julia Marks, Ph.D.

Julia B. Marks, Ph.D., Licensed Psychologist

Dr. Marks received her doctorate in Clinical Psychology from the California School of Professional Psychology-Alameda in 2001. She has a background in social work with adopted and foster children. Additionally, she worked as a special education teacher for teenagers with learning and emotional issues. Dr. Marks was a staff psychologist within the Division of Child and Adolescent Psychiatry at Schneider Children’s Hospital where she specialized in psychotherapy with adolescents and families. She has been practicing Dialectical Behavior Therapy Program since 2002.

moses

Elizabeth Moses, Psy.D., Licensed Psychologist

Dr. Moses received her Psy.D. in Clinical Psychology from Rutgers Graduate School of Applied and Professional Psychology in 2016. She completed her pre-doctoral internship at Maimonides Medical Center in Brooklyn, NY. Dr. Moses has received extensive training in evidence-based treatments including Cognitive Behavior Therapy (CBT), Dialectical Behavior Therapy (DBT), Exposure and Response Prevention (ERP) for Obsessive-Compulsive Disorder, and Interpersonal Social Rhythm Therapy (IPSRT) for Bipolar Disorder. She also completed an intensive training in Dialectical Behavior Therapy (DBT) offered by Behavioral Tech, LLC. Dr. Moses has worked with adults, children, adolescents, families, and couples in a variety of inpatient and outpatient settings including mental health clinics, hospitals, and college counseling centers. She currently provides individual DBT and CBT, and co-leads DBT skills groups for adolescents and adults.

Adam Payne, Ph.D.

Adam C. Payne, Ph.D., Licensed Psychologist

Dr. Payne is a DBT – Linehan Board of Certification, Certified DBT Clinician. Dr. Payne provides DBT Intensive Trainings for Behavioral Tech, LLC. Within his role as a Behavioral Tech Trainer, he has provided DBT training to clinicians across the nation and internationally. Dr. Payne is a Clinical Supervisor for the Behavioral Research and Therapy Clinics (BRTC) at the University of Washington in Seattle, the clinical research center led by Marsha Linehan, Ph.D., ABPP. Dr. Payne was the Program Chair for the ISITDBT Conference for 2012 and 2013. Dr. Payne served as the Clinical Coordinator of the DBT Program at NSLIJ Schneider Children’s Hospital for seven years prior to starting the CCDBT with his colleagues. Dr. Payne currently provides individual DBT and CBT as well as serving as a DBT Skills Group Leader at CCDBT. Dr. Payne received his Ph.D. in Clinical Psychology from the State University of New York at Stony Brook in 1996.

proujansky

Rachel Proujansky, Psy.D., Licensed Psychologist

Dr. Proujansky received her Psy.D. in Clinical Psychology in 2016 from Ferkauf Graduate School of Psychology at Yeshiva University. She completed her pre-doctoral internship at Mount Sinai St. Luke’s and Mount Sinai West (formerly Mount Sinai Roosevelt) in New York, NY. Dr. Proujansky has received extensive training in evidence-based treatments including Cognitive Behavior Therapy (CBT), Dialectical Behavior Therapy (DBT), and Exposure and Response Prevention (ERP) for obsessive compulsive disorder. She has completed an intensive training in DBT offered by Behavioral Tech, LLC. Dr. Proujansky has worked with individuals, families, and couples across the lifespan in a variety of settings including inpatient, residential treatment, mental health clinics, and hospitals. She has also provided CBT targeting anxiety, depression, and HIV-risk behaviors in young gay and bisexual men as part of an NIMH-funded research study. She currently provides individual DBT and CBT and co-leads DBT skills groups for adolescents and adults at the Lake Success CCDBT office.

Mitch Young, LCSW

Mitch Young, L.C.S.W., Licensed Clinical Social Worker

Mr. Young has more than 20 years of experience providing Cognitive-Behavioral Therapy to children, adolescents and adults in both inpatient and outpatient settings. He joined the Dialectical Behavior Therapy (DBT) program at NSLIJ Schneider Children’s Hospital upon its inception in 1999. Since then he has been both an individual therapist and skills group leader and has attended many DBT-oriented trainings. Mr. Young has given many presentations in the community and helped to orient trainees to DBT at Long Island Jewish Medical Center. Mr. Young worked for 4 years as a therapist at the Division of Child & Adolescent Psychiatry at Schneider Children’s Hospital and then for 5 years on the Child Psychiatry Inpatient Unit at Schneider Children’s Hospital. For the 10 years prior to starting the CCDBT with his partners, Mr. Young was also in private practice on the south shore of Long Island. Mr. Young received his Master’s Degree in Social Work in 1991 from Florida State University.

Top