Experience

• Private Practice, 2023-current

• Seattle Children’s Hospital, Outpatient Psychiatry and Behavioral Medicine: Consulting Medical Staff, 2024-current; Primary Psychologist, Anxiety Intensive Program, 2023-2024; Staff Psychologist, 2021-2024

• The Pediatric Center at Lester E. Cox Medical Center South, Staff Psychologist, 2019-2021

Training

• The Pediatric Center at Lester E. Cox Medical Center South, post-doctoral fellowship in primary care, 2018-2019

• Royal Oaks Hospital, National Psychology Training Consortium, pre-doctoral internship with emphasis in acute psychiatry services (APA-accredited), 2017-2018

Education

• Psy.D., Florida School of Professional Psychology (APA-accredited), 2018

• M.A., Florida School of Professional Psychology, 2013

• B.A., University of South Florida, 2010

Research

• View here

Diana Bastien, Psy.D., ABPP

I am a licensed clinical psychologist and board-certified specialist in Clinical Child and Adolescent Psychology (ABPP). I work with adolescents and adults, with a particular focus on anxiety disorders, obsessive-compulsive disorder (OCD), and mood-related challenges.

I completed my Psy.D. in Clinical Psychology and have had the privilege of training and working across hospital, academic, and outpatient settings, including Seattle Children’s Hospital. There, I served as a clinical psychologist and lead Anxiety Intensive Outpatient Program psychologist, where I worked closely with youth and families facing complex anxiety and emotional challenges.

My approach is grounded in evidence-based treatment, but I also place a strong emphasis on connection, collaboration, and understanding each person’s unique experience. I have specialized experience in treating OCD, generalized anxiety, social anxiety, panic disorder, and related concerns, as well as supporting individuals navigating mood difficulties and other emotional struggles.

Over the course of my career, I have worked in a variety of settings that have shaped how I think about care. I’ve learned the importance of careful assessment, clear communication, and meeting people where they are—whether that’s a teen struggling with intrusive thoughts, or a parent trying to better understand how to support their child.

I am board certified by the American Board of Professional Psychology and maintain licensure in multiple states. I also remain active in professional organizations and mentorship, which allows me to stay connected to ongoing developments in the field and contribute to training the next generation of psychologists.

In my private practice, I strive to create a space where people feel safe, understood, and supported. My goal is to help clients and families make sense of what they are experiencing and move toward meaningful, lasting change—at a pace that feels right for them.