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Dr. Mark Nguyen, PsyD, Ed.D.
Psychologist

Dr. Mark Nguyen, Psy.D., Ed.D.

Dr. Mark Nguyen, Psy.D., Ed.D., is a licensed clinical psychologist specializing in the treatment of chronic pain, trauma, anxiety, depression, behavioral addictions (including gambling), neurodivergent challenges and learning disabilities. He earned his doctorate in Clinical Psychology from The Chicago School of Professional Psychology and a doctorate in Educational Leadership from the University of Southern California. Dr. Nguyen provides culturally responsive, evidence-based care using approaches such as Acceptance and Commitment Therapy (ACT), Cognitive Behavioral Therapy (CBT), Trauma-Focused Therapy, Solution-Focused Therapy, mindfulness-based strategies, Motivational Interviewing, and Behavioral Activation to support emotional regulation, resilience, and meaningful behavioral change.

Dr. Nguyen has extensive clinical experience providing psychological assessment and psychotherapy to adolescents and adults facing complex emotional, behavioral, and health-related challenges. He works with individuals to help them develop healthier coping strategies, increase psychological flexibility, and improve daily functioning. His work often involves collaboration within interdisciplinary care teams to support patients adjusting to injury, medical conditions, learning disabilities and significant life stressors, with a focus on restoring functioning, strengthening resilience, and improving overall quality of life.

Areas of Expertise & Specialization Chronic pain management, Neurodivergent Population, Learning Disabilities, and behavioral addictions.

psychiatrist-robert-bota

Robert G. Bota, MD, MSG, DFAPA
Psychiatrist
Director of TMS Clinic

Kiefer Greenspan, MD
Psychiatrist
Director of Ketamine Clinic

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Arthur Chou, MD
Psychiatrist
Director of Ketamine Clinic

G. Mustafa Surti, MD

G. Mustafa Surti, MD
Psychiatrist
Director of Geriatric Psychiatry

Arde Anoshivani, MD
Psychiatrist
Addiction Specialist

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Mani Vahidi, MD
Psychiatrist
Director of Addiction Psychiatry

Erin Benesch, DO
Psychiatrist | Medical Director
Child & Adolecent Psychiatry

Anthony Mele, Psy.D.
Clinical Director
Psychologist

Ralph Kuechle, Ph.D.
Psychologist
Child & Adolescent Specialist

Dina Zayat, Psy.D.
Psychologist
Marriage & Family Specialist

Helen Kienzle, Ph.D.
Psychologist

Aidin Tajbakhsh PhD, BCB, BCN
Psychologist

Mary Berst, Ph.D.
Psychologist
EMDR Certified

Debra Hadden, Psy.D.
Psychologist

Nicole Mantegna, Psy.D.
Psychologist

Hasti Zand, Psy.D.
Psychologist

Michelle McGuire, Psy.D.
Psychological Assistant

Mimi Amaral, Psy.D.
Psychologist Associate

Karin Celosse PsyD, MSCP, MPH
Psychologist

Fariba Yazdkhasti, Ph.D.
Psychological Assistant

Joe Kliegl, Ph.D
Psychological Assistant

Damon Corgiat, Ph.D
Psychologist

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Mark Nguyen, PsyD, Ed.D.,
Psychologist

Christina Perez, Ph.D.
Psychologist

Amanda Nelson, PA-C, PMH-C
Maternal Mental Health Specialist

Krista Ribota, PMHNP-BC
Psychiatric Nurse Practitioner
Ketamine & TMS Clinic

Tannaz Jourabchian, PA-C
Physician Assistant

Thomas Bales

Thomas Bales, PA-C
Physician Assistant
MAT Specialist

Lauren Dunn, PMHNP-BC
Psychiatric Nurse Practitioner
Ketamine Treatment Specialist
Ketamine & TMS Clinic

Max Kupferman PA-C
Physician Assistant
Manager of Clinical Operations

Morgan McClafferty, PA-C
Physician Assistant

Treatment Resistant Depression Specialist

Danichi Yoshida, PA-C
Physician Assistant
Geriatric Specialist

Olivia Trecaso, PMHNP-BC
Psychiatric Nurse Practitioner
Eating Disorders Specialist

Chelsea Vilicich, PA-C
Physician Assistant
Lead Advanced Practitioner
TMS Clinic Team

Mark Anantiyo, PA
Physician Assistant

Darrell Deguzman, PMHNP, FNP
Psychiatric Nurse Practitioner

Kristin Wilkerson, PMHNP, DNP
Psychiatric Nurse Practitioner

male

Danielle Schlazer, PMHNP

Psychiatric Nurse Practitioner

Nimisha Jain, PA-C
Physician Assistant

male

Jonathan Wu, PMHNP - BC
Psychiatric Nurse Practitioner

Alex Mulé, PA-C
Physician Assistant

Michael Anantiyo, PA-C
Physician Assistant

Kendra Latty, PMHNP-BC

Physician Assistant

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Lauren Harrington, PMHNP-BC

Physician Assistant

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Ian San Luis, PMHNP-BC

Physician Assistant

About Harbor Psychiatry & Mental Health

We believe outstanding healthcare is delivered when we merge the science of medicine with the compassion of our hearts. We refer to this as “head and heart together,” inspiring constant improvement and lasting success.
Psychiatrists Orange County CA
Psychologists Orange County CA