Colleen Harker, Ph.D.


Colleen Harker received her doctorate in clinical psychology and is in the process of completing her postdoctoral fellowship hours to become a licensed psychologist in the state of Pennsylvania. Dr. Harker specializes in treating children, adolescents, and young adults with anxiety, OCD, and related disorders. She has particular expertise in working with individuals with autism spectrum disorder.

Dr. Harker obtained her PhD in clinical psychology from the University of Washington in Seattle and her undergraduate degree in psychology from the University of Pennsylvania. She completed her clinical internship at the University of California, Los Angeles (UCLA) Medical Center and her post-doctoral fellowship at the Child and Adolescent OCD, Tic, Trich, and Anxiety Group (COTTAGe) and the Penn Center for Mental Health at the University of Pennsylvania. During her training, she completed rotations in the Child OCD, Anxiety, and Tic Disorders Program, the Child and Adolescent OCD Intensive Outpatient Program, and the Child and Adult Neurodevelopmental Clinic at UCLA. She has experience working in outpatient, inpatient, and partial day hospitalization settings with children, adolescents, and young adults. Dr. Harker is passionate about partnering with community providers to determine how to effectively implement evidence-based practices in their settings. Dr. Harker is a certified provider of the PEERSâ social skills program.