About Dr. Hartstein

Dr Jennifer HartsteinJennifer L. Hartstein, PsyD, specializes in psychotherapy with children, adolescents and their families, focusing on those who struggle with a wide range of psychological diagnoses, especially affective disorders, such as anxiety and depression.  Dr. Hartstein has received intensive training in adolescent suicide assessment and has specialized in this population for several years, using a variety of treatment approaches, including Dialectical Behavior Therapy.

Prior to entering into full time private practice, she was the Clinical Director of the Discovery Center at the Child and Family Institute of St Luke’s-Roosevelt Hospital Center.  The Discovery Center provides short-term substance abuse prevention and early intervention strategies for adolescents.  Before working at the Child and Family Institute, of St. Luke’s-Roosevelt Hospital Center, Dr Hartstein was the Director of the Group Psychotherapy Program, Intake Coordinator of the Adolescent Depression and Suicide Program, and Attending Psychologist at the Child Outpatient Psychiatry Department of Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, NY.

Dr. Hartstein received her BA from George Washington University in Washington, DC before earning her MA in Dance/Movement Therapy from Hahnemann University in Philadelphia.  She worked as an Allied Therapist on two adolescent inpatient units, creating and implementing group therapy programs, before returning to Yeshiva University to complete her doctorate in School-Child Clinical Psychology.

Dr. Hartstein is the author of Princess Recovery: A How-to Guide to Raising Strong, Empowered Girls Who Can Create Their Own Happily Ever Afters. Dr. Hartstein is on the advisory board of MTV’s A Thin Line, which focuses on the digital behaviors of teenagers and young adults. Additionally, she is a psychological contributor for a variety of television news programs, radio programs and in print media, including The Today Show, 20/20, CBS This Morning, and others.   Dr. Hartstein is also a founding member of The Brave Girls Alliance, which aims to improve the media and messages that young girls and women receive daily.

Dr. Hartstein lives and practices in New York City.  To contact Dr. Hartstein, click here and follow my blog at www.drjen.com.

About Colleen Cullen

Dr Colleen CullenColleen C. Cullen, PsyD is a licensed psychologist currently in part-time private practice in New York City, specializing in the treatment of children, adolescents and families.

Dr. Cullen received her B.A. from Dartmouth College in Hanover, NH, cum laude, with a psychology major and an education concentration.  Prior to completing her doctorate in Clinical Psychology at Nova Southeastern University in Fort Lauderdale, FL, she was an elementary school teacher while living abroad.  She completed her internship and postdoctoral fellowship at the Child and Family Institute at St Luke’s-Roosevelt Hospital Center in Manhattan.

Dr. Cullen works with children, adolescents and families who have a wide range of psychological diagnoses.  She is skilled in the treatment of a number of emotional and behavioral issues, including disruptive behaviors, depression, anxiety, trauma and family stress.  Dr. Cullen has specialized training in working with parents and infants/toddlers to address issues in the attachment relationship, behavioral difficulties and developmental concerns.  She also has significant experience working with the Lesbian, Gay, Bisexual, Transgender (LGBT) community, including LGBT teens, as well as LGBT parents and their children.  Dr. Cullen has received training in a number of evidence-based treatment approaches, including Cognitive-Behavioral Therapy (CBT), Dialectical Behavior Therapy (DBT) and Trauma-Focused Cognitive Behavior Therapy  (TF-CBT).

Dr. Cullen lives and practices in New York City.  To contact Dr. Cullen, click here

About Holly A. Hart

Dr Holly HartDr. Holly A. Hart, PsyD is a licensed clinical psychologist currently in private practice in New York City. Dr. Hart has considerable experience working with children and adolescents with multisystemic emotional and behavioral difficulties, as well as those diagnosed with a wide variety of psychiatric disorders. Dr. Hart has worked extensively with parents providing didactic parental training and behavioral management skills for children from infancy through late adolescence.

Prior to entering into private practice, Dr. Hart worked as a Supervising Psychologist at Children’s Village in the Adoption and Foster Care Program. She is intensively trained in Trauma Systems Theory (TST) and assisted in the overall departmental training of the TST treatment model, while facilitating multiple Clinical Treatment Teams in the holistic treatment of children with multiple traumas.

Dr. Hart received her B.A. in Creative Writing and Journalism from the University of Arizona and received her doctorate in Clinical Psychology at Argosy University Phoenix, Arizona. She completed her predoctoral internship and postdoctoral fellowship at the Child and Family Institute at St Luke’s-Roosevelt Hospital Center in Manhattan. During her training, Dr. Hart spent two years providing relational dyadic therapy for at-risk pregnant women, parents (adolescent and adult), and their children between the ages of birth and three, with an emphasis on fostering healthier caregiver-infant attachment.

In addition to her parenting work, Dr. Hart has extensive experience as a group therapy facilitator. She developed and facilitated sibling support groups for siblings of children diagnosed with medical and/or psychiatric diagnoses and she facilitated social skills groups for children with a wide variety of psychiatric disorders, including autism spectrum disorders, affective disorders, and behavioral disorders. Additionally, she has experience in running groups focused on women’s mental health needs, and has successfully run a Female Sexual Development Group for at-risk adolescent girls and a dyadic group for young mothers with affective disorders, including postpartum depression, and their infants/toddlers.

Dr. Hart has received training in a number of evidence-based treatment approaches including Cognitive-Behavioral Therapy, Dialectical Behavior Therapy, Play Therapy (i.e. Adlerian and Child-Centered), Trauma Systems Therapy, Trauma Focused Cognitive Behavioral Therapy, and Mindfulness-Based Cognitive Therapy.

Dr. Hart lives and practices in New York City.  To contact Dr. Hart, click here.

About Zack Blumkin

Zack Blumkin, Psy.D., is a clinical psychologist currently in part-time private practice in New York City, specializing in the treatment of children, adolescents, parents and families.

Dr. Blumkin received his B.A. from the University of Colorado in Boulder with a major in psychology. He graduated from Massachusetts School of Professional Psychology (MSPP) with specializations in Health Psychology and Latino Mental Health. Dr. Blumkin held numerous clinical positions during graduate school at Children’s Hospital Boston and the Dana-Farber Cancer Institute, both of which are teaching hospitals of Harvard Medical School. He has additional experience working in a residential treatment facility, a community mental health center, and administrating psychological assessments. Through the Latino Mental Health program, Dr. Blumkin traveled to Costa Rica, Ecuador and Guatemala, where he participated in various clinical and volunteer positions.

Dr. Blumkin completed his internship and postdoctoral fellowship at New York-Presbyterian Hospital, Columbia University Medical Center, during which he expanded his experience working with numerous emotional and behavioral issues. Dr. Blumkin is trained to work with disruptive behavior disorders, trauma, depression and anxiety. He also has a great deal of experience working with schools, family systems and teaching parenting skills.

Dr. Blumkin has extensive experience in working with children and families affected by chronic illness and/or medical issues. He is also trained in numerous evidenced-based treatment approaches including Cognitive-Behavioral Therapy (CBT), Dialectical Behavior Therapy (DBT), Interpersonal Psychotherapy for Adolescents (IPT-A), and Trauma Focused Cognitive Behavioral Therapy (TFCBT). To contact Dr. Blumkin, click here.

About Emily Roberts

Ms. Emily Roberts, MA, LPC, is a therapist who specializes in working with children, adolescents and their families.

Ms. Roberts is a licensed professional counselor and has a Masters Degree in Counseling Psychology from St. Edwards University in Austin, Texas. Ms. Roberts has worked in academic, hospital, and private practice settings in both Texas and New York. She currently is the staff therapist at Neurogistics, providing support, coaching and resources to children and their families.

Before joining Hartstein Psychological, Ms. Roberts ran a private practice, created workshops and groups for building self-esteem in children and adolescents, and was a staff therapist for the adolescent unit of Cedar Springs Eating Disorder Treatment Center.  She is a specialist in working with children and young adults, as well as their parents. Ms. Roberts is experienced in working with life transitions, trauma, adoption issues, eating disorders, anxiety, depression, and personality disorders.

Ms. Roberts has created The Guidance Girl, a mentoring resource for girls, young women, and their families.  More information can be found here: www.theguidancegirl.com

Ms. Roberts utilizes a variety of approaches uniquely tailored for each client, including Cognitive-Behavioral Therapy (CBT), Dialectical Behavior Therapy (DBT), Solution Focused Therapy, and Trauma First Aid Training (TFA). To contact Ms. Roberts, click here.


School has started, extra curricular activities and after school sports are in full swing, homework is being assigned, social activities abound, and there is a chill in the air signaling the end of the summer season. One problem: your child refuses to go to school. Not only that, but this refusal is causing severe emotional […]



October is Domestic Violence Awareness Month. Although it might not be readily apparent, dating violence amongst young people is a serious problem. According to loveisrespect.org, nearly 1.5 million high school students nationwide experience physical abuse from a dating partner in a single year. One in three adolescents in the U.S. is a victim of physical, sexual, emotional or verbal abuse from a dating partner, a figure that far exceeds rates of other types of youth violence. One in 10 high school students has been purposefully hit, slapped or physically hurt by a boyfriend or girlfriend. One quarter of high school girls have been victims of physical or sexual abuse. Approximately 70% of college students say they have been sexually coerced. Be sure to talk with your teens about what healthy relationships are and how to get out of relationships that might not be healthy. Look for resources to help you in this discussion, such as loveisrespect.org, for example. Help your teen understand that dating violence is not an automatic in relationships, rather it should be the exception.

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