Diana Bastien, PSYD

Diana  Bastien, PSYD

Psychiatry and Behavioral Medicine, Anxiety Intensive Outpatient Program

On staff since October 2021

Children's Title: Clinical Psychologist

  • Diana Bastien, Psy.D., is a Clinical Psychologist at Seattle Children’s Hospital and certified National Register Health Service Psychologist. She specializes in the treatment of pediatric obsessive-compulsive disorder (OCD), anxiety disorders, and tic disorders. 

    Dr. Bastien earned her Bachelor of Arts in Psychology at the University of South Florida (USF), Master of Arts in Clinical Psychology from the Florida School of Professional Psychology (FSPP), and Doctor of Psychology (Psy.D.) from FSPP, an American Psychological Association-accredited program. During graduate school, Dr. Bastien completed clinical practicum with youth with OCD, tic disorders, neurodevelopmental concerns, anxiety disorders, and psychological sequelae of medical disorders, including PANS/PANDAS, at the USF Rothman Center for Pediatric Neuropsychiatry. She co-authored peer-reviewed publications and poster presentations under the supervision of physician faculty at USF, as well as assisted with research coordination and provided an organizational framework to oversee the conduction of various sponsored research studies funded by the NIH and the CDC.  

    Dr. Bastien completed an APA-accredited predoctoral residency at Royal Oaks Hospital, an acute inpatient psychiatric hospital where she was trained in the assessment and treatment of children and adolescents with significant behavioral, emotional, and medically-based needs. Upon graduating with her doctoral degree, Dr. Bastien completed a postdoctoral fellowship with focus on pediatric primary care psychology. Upon completion of fellowship and obtaining licensure in Missouri, she practiced as a clinical psychologist in pediatric primary care and provided supervision to predoctoral interns prior to relocating to the Pacific Northwest to join Seattle Children’s Hospital. She has served as a panelist on a roundtable discussion of youth suicide prevention and has appeared on local news providing recommendations on managing anxiety related to vaccines. 

  • Manuscripts in Refereed Journals

    • Gerardi DM*, Murphy TK, Toufexis M, Hanks C
      Serotonergic or Anticholinergic Toxidrome: Case Report of a 9-Year-Old Girl.
      26425930 Pediatric emergency care, 2015 Dec. : 31(12)846-50
    • Gerardi DM*, Casadonte J, Patel P, Murphy TK
      PANDAS and comorbid Kleine-Levin syndrome.
      25329605 Journal of child and adolescent psychopharmacology, 2015 Feb. : 25(1)93-8 PMCID:PMC4340647
    • Toufexis MD, Hommer R, Gerardi DM*, Grant P, Rothschild L, D'Souza P, Williams K, Leckman J, Swedo SE, Murphy TK
      Disordered eating and food restrictions in children with PANDAS/PANS.
      25329522 Journal of child and adolescent psychopharmacology, 2015 Feb. : 25(1)48-56 PMCID:PMC4340640
    • Gerardi DM*, Brozyna-DeOleo C, Winesett SP, Gieron-Korthals M, Murphy TK
      Differentiation between complex tic and eyelid myoclonia with absences: Pediatric case report and brief literature review
      Journal of Neurological Research and Therapy, 2015 : 2(2)111-115
    • Murphy TK, Gerardi DM*, Leckman JF
      Pediatric acute-onset neuropsychiatric syndrome.
      25150567 The Psychiatric Clinics of North America, 2014 Sept. : 37(3)353-74
    • Murphy TK, Gerardi DM*, & Parker-Athill EC
      The PANDAS controversy: Why (and how) is it still unsettled?
      Current Developmental Disorders Reports, 2014 : 1(4)236-244

  • Presentations Title Event Location Date
    ADHD in pediatric primary care Missouri Psychological Association Integrated Care Roundtable Discussion Virtual Feb. 3, 2022
    Special considerations in clinical child and adolescent psychology: a primer on risk assessment and diagnosis National Psychology Training Consortium Internship Didactics Virtual June 3, 2021
    Considerations in evidence-based risk assessment and differential diagnosis of children and adolescents Benchmarks at Burrell Behavioral Health Virtual May 21, 2021
    Pediatric safety assessment: research findings and clinical pearls Burrell Behavioral Health Youth Services Monthly Clinical Training Virtual March 24, 2021
    DSM-5: an overview of changes from DSM-IV Florida Psychological Association Southwest Regional Conference St. Petersburg, FL April 8, 2016
    Borderline personality disorder: investigating the female preponderance Eighth Combined Agency Training Institute Conference Sarasota, FL 2015
    Disordered eating and food restrictions in children with PANDAS/PANS Sixty-first American Academy of Child and Adolescent Psychiatry Conference San Diego, CA Oct. 2014
    Serotonergic or anticholinergic toxidrome: case report of a nine-year-old girl Twenty-fourth University of South Florida Health Research Day Tampa, FL Feb. 2014


Medical/Professional School

Florida School of Professional Psychology at Argosy, Tampa, FL


Royal Oaks Hospital, Windsor, MO


Lester E Cox Medical Center South, Springfield, MO

Clinical Interests

Evidence-based treatment of anxiety disorders, OCD, tic disorders, and conversion disorder in children and adolescents; ERP and CBIT treatment in PANS/PANDAS; differential diagnosis in pediatric mood dysregulation and irritability; evidence-based risk assessment in children and adolescents, including those with autism spectrum disorder