Dr. Gisoo Zarrabi

Kiefer Greenspan, MD
Psychiatrist – Supervising Physician

Kiefer Greenspan, MD

Dr. Greenspan is a member of the American Psychiatric Association and the American Medical Association. He takes an evidence-based and patient-centered approach to treatment, with clinical interests including medical decision making, treatment-resistant depression, and obsessive-compulsive disorder. He has extensive experience treating depressive disorders, anxiety disorders, PTSD, ADHD, bipolar disorder, schizophrenia, and many others. Originally from Laguna Niguel and a graduate of Dana Hills High School, he is passionate about providing psychiatric care for those in the Orange County community where he grew up.

He completed his undergraduate degree in Biology at UCLA, where he graduated magna cum laude and was selected into the Phi Beta Kappa society. He graduated from the University of Pittsburgh School of Medicine, a top-ranked medical school with the number one NIH-funded department of psychiatry in the country. He then completed his residency training in Chicago at the University of Illinois, a public healthcare system where he gained excellent clinical experience treating the most underserved and severely ill patients in Chicago within the city’s highest NIH funded department of psychiatry.

Dr. Greenspan is published in several peer-reviewed journals on diverse topics in psychiatry ranging from circadian rhythm abnormalities in bipolar disorder to structural neuroimaging endophenotypes, has presented his research at conferences across the country, and has experience writing review questions for the American Board of Psychiatry and Neurology licensing exam.

In his free time, he enjoys watching his favorite basketball teams (the Lakers and UCLA), playing music, and spending time with his dog.

Grace Kwon, DO
Psychiatrist
Associate Medical Director

Erin Benesch, DO
Psychiatrist
Associate Medical Director

Kiefer Greenspan, MD
Psychiatrist
Supervising Physician

Arde Anoshivani, MD
Psychiatrist
Addiction Specialist

G. Mustafa Surti, MD
Psychiatrist
Geriatric Psychiatry Specialist

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

Cynthia Nakoski, Psy.D.
Psychologist

Cathy Francis, Psy.D.
Psychologist

Debra Hadden, Psy.D.
Psychologist

Nicole Mantegna, Psy.D.
Psychologist

Kelly D. Krueger, Psy.D.
Psychologist

Natalie Do, Ph.D.
Psychologist

Gauri Saxena, Ph.D.
Clinical Psychologist
Maternal Health Specialist

Hasti Zand Psy.D.
Psychologist

Michelle McGuire Psy.D.
Psychologist

Mimi Amaral, Psy.D.
Psychologist

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

Tannaz Jourabchian, PA-C
Physician Assistant

Ando Muneno, PA-C
Physician Assistant
Ketamine Treatment Specialist

Thomas Bales, PA-C
Physician Assistant
Ketamine Treatment Specialist

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

Morgan McClafferty, PA-C
Physician Assistant
Treatment Resistant Depression Specialist

Danichi Yoshida, PA-C
Physician Assistant
Geriatric Specialist

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

Max Kupferman PA-C
Physician Assistant
Lead Advanced Practitioner

Chelsea Galdo, PA-C
Physician Assistant

Darrell Deguzman, PMHNP, FNP
Psychiatric Nurse Practitioner

Kristin Wilkerson, PMHNP, DNP
Psychiatric Nurse Practitioner

Jennifer Tustison, PMHNP, FNP
Psychiatric Nurse Practitioner

Nimisha Jain, PA-C
Physician Assistant

Sarah Rezaee, PMHNP-BC
Psychiatric Nurse Practitioner

Dariya Pak PMHNP-BC

Psychiatric Nurse Practitioner

Mark Anantiyo, PA

Physician Assistant

Brett Larson, PA-C
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