Leslie A. Tsang, DO is a board‑certified psychiatrist and Founder/Medical Director of Berkeley Behavioral Health and Wellness, Inc. He specializes in psychiatric evaluation, medication management, and wellness‑focused care for adults, with expertise in outpatient psychiatry, integrated behavioral health, medical education, and collaborative care.

Dr. Tsang earned his medical degree from Western University of Health Sciences and completed his psychiatry residency at UCLA–Olive View, where he served as Chief Resident for inpatient psychiatry. He has held leadership roles with The Permanente Medical Group, as Co‑Director of Behavioral Medicine & Wellness, and as Core Teaching Faculty for the Napa‑Solano Family Medicine Residency.

He continues to mentor clinicians, contribute to medical education, and present nationally on mood and anxiety disorders, insomnia, advanced pharmacology, clinician wellness, and psychiatric emergencies. His work has been recognized with the Polished Diamond Award and the Faculty Teaching Award for Behavioral Medicine & Resident Wellness.

Dr. Leslie A. Tsang is licensed to practice medicine in: California.