Meet Our Team
Psychiatrists & Psychotherapists

Dr. Yang Xu, MD
Dr. Xu is board certified to treat Adult, Child, and Adolescent population in both English and Mandarin. Her research and clinical training was from Columbia University, Mount Sinai-Beth Israel, and Washington University in St. Louis.

Dr. Sarah Jillani, MD
Dr. Jillani is board certified in treating Adult, Child and Adolescent population in English, Urdu/Punjabi. Her clinical training was from Yale Child Study Center and Connecticut School of Medicine.

Dr. Ann Chen, MD
Dr. Chen is a child, adolescent, and adult psychiatrist fluent in English, Cantonese, and Mandarin. She completed medical training at UCLA, residency at CPMC, and finishing her child and adolescent psychiatry fellowship at UCSF.

Dr. John Kelsey, MD, JD
Dr. John Kelsey is double board certified in Psychiatry and Neurology. He completed his medical training at the University of Minnesota, followed by residency at Harbor-UCLA and California Pacific Medical Center.

Dr. Oriana Vesga-Lopez, MD
Dr. Vesga-Lopez is English/Spanish bilingual psychiatrist. She received her research and clinical training in Columbia University and Massachusetts General Hospital (MGH) in affiliation with Harvard Medical School.

Dr. Eileen Wu, MD, PhD
Dr. Wu is a board certified English/Mandarin bilingual adult psychiatrist. She completed her residency in Psychiatry at Washington University-St Louis. She has been in practice for more than 20 years.

Dr. Yen Luu, MD
Dr. Kieu-Yen Luu, M.D. received her medical degree from the University of California, Davis, completed her psychiatry residency at Harbor-UCLA, and pursued a fellowship in forensic psychiatry at the University of Southern California.

Dr. Huiqi Tong, PhD
Dr. Hui Qi Tong is a Clinical Professor of Psychiatry and Behavioral Sciences at Stanford University who provides psychotherapy and mindfulness-based programs for individuals facing anxiety, trauma, burnout, and life transitions.

Dr. Arezoo M. Esfahani, Ph.D.
Dr. Arezoo Esfahani is a licensed clinical psychologist with extensive experience providing culturally sensitive mental health services to transitional-age youth, adults, and older adults.

Dr. Brenda Abarca, MD, MPH
Dr. Brenda Abarca is a board-certified psychiatrist specializing in acute and outpatient care for complex mental illnesses. She completed her degree at the David Geffen School of Medicine at UCLA and trained at Harbor-UCLA Medical Center.

Mark Mattek, LPCC
Mark Mattek is a Licensed Professional Clinical Counselor. He obtained his Master of Science in Counseling degree from the University of Phoenix, and in 2020 completed additional graduate coursework in trauma counseling at California State University – Fullerton.

Celine Hsieh, LMFT
Celine Hsieh is a Licensed Marriage and Family Therapist with a Master’s Degree in Art Therapy from Notre Dame de Namur University. She specializes in expressive arts therapy.

Dr. Ludwing Salamanca, MD, PhD
Ludwing is a board-certified psychiatrist providing collaborative and evidence-based telehealth care to adults across California and offers sessions in English and Spanish.

Elham Sharifpour, AMFT
Elham is an Associate Marriage and Family Therapist who provides compassionate and culturally responsive care for children, adolescents, adults, couples, and families. She integrates evidence-based modalities including CBT, ACT, EMDR, and art and play therapy. She offers therapy in both English and Farsi.

Choi Ieng “Alita” Cheang, AMFT, APCC
Alita is a trilingual Associate Marriage and Family Therapist (AMFT) specializing in trauma-informed, culturally responsive care for Asian American and immigrant communities.
Administrative Staff

L. Todd Landreneau, MSW, PhD
Bringing over 25 years of healthcare leadership experience, Todd, serves as our Interim Operations Director to strengthen daily clinic workflows and foster a cohesive, resilient organizational culture.

Mohammed Abdullah
As our Administrative Manager, Mohammed brings over six years of healthcare experience to ensure smooth daily operations and provide every patient with a warm, compassionate, and seamless care journey.

Hamna Noor
With an extensive background in psychology and clinic leadership, Front Desk Manager Hamna ensures every patient feels warmly welcomed, heard, and supported from their very first interaction.

Sanya Saleem
With eight years of dedicated mental health administration experience, Sanya expertly manages daily clinical operations to ensure every patient experiences a seamless, supportive, and compassionate care journey.