
Dr. Heather Mazursky-Horowitz
hhorowitz@westchesteranxietytreatment.com
914-358-4160
Heather Mazursky-Horowitz, Ph.D
Dr. Heather Mazursky-Horowitz is a licensed clinical psychologist with expertise in the application of cognitive-behavioral and behavioral approaches to address anxiety, ADHD, disruptive behavior problems, mood disorders, and interpersonal difficulties. She received her Bachelor’s degree in Psychology from the University of Rochester, Master’s degree from Columbia University Teacher’s College, and her Doctoral degree in Clinical Psychology from the University of Maryland, College Park.
Dr. Mazursky-Horowitz has provided therapy, evaluation, and consultation services across a range of settings, including Children’s National Medical Center in Washington, D.C., where she worked with children and adolescents with chronic illness; Westchester Jewish Community Services, where she provided individual, group, and family psychotherapy as well as psychological evaluations with children, adolescents, and adults; and Montefiore Medical Center where she worked with individuals ages 0-21 helping parents manage childhood tantrums, picky eating, and toilet training as well as helping adolescents and young adults manage their own life stresses. Dr. Mazursky-Horowitz has particular expertise in treating anxiety disorders across the lifespan in both individual and group settings and makes the goal of therapy for individuals to learn the skills necessary to live a meaningful life outside the walls of the therapy room.
She provides individual therapy (child, adolescent, and adult), behavioral parent training, and group therapy, and is a certified Parent-Child Interaction Therapy (PCIT) therapist. Dr. Mazursky-Horowitz integrates principles from evidence-based practices to best support the individual needs of each patient. She provides CBT in a warm and supportive manner, offering strategies and skills that help children and adults manage their emotions in a healthy way.
- Children
- Adolescents
- Adults
- Individual
- Groups
- Parents
Education

University of Rochester
Dr. Heather Mazursky-Horowitz received her B.A. in Psychology from the University of Rochester.

Teacher’s College of Columbia University
Dr. Mazursky-Horowitz earned her M.A. in Psychology from Teacher’s College of Columbia University.

University of Maryland
Dr. Heather Mazursky-Horowitz earned her Ph.D. in Clinical Psychology from the University of Maryland, College Park.