Expert Adult Psychiatrist & Consultation-Liaison Specialist
Stanford-trained, board-certified adult psychiatrist specializing in complex psychiatric conditions and the intersection of mental health and medicine – telehealth and in-person consultations available.

Dr. Ernest Okwuonu, MD
Dr. Ernest Okwuonu is a Stanford-trained Psychiatrist with a robust background in managing complex psychiatric conditions in diverse medical settings. He completed his Consultation-Liaison Psychiatry (Psychosomatic Medicine) fellowship at Stanford University School of Medicine. He completed his psychiatry residency at St. John's Episcopal Hospital in New York and served as Chief Resident. Dr. Okwuonu earned his MD from the American University of the Caribbean and holds a BSc Honors in Pharmaceutical & Biological Chemistry from York University in Toronto, which informs his in-depth psychopharmacology knowledge.
Board-certified by the American Board of Psychiatry & Neurology, Dr. Okwuonu has specialized training in managing psychiatric complications in intensive care, surgical, and oncology settings. He has contributed to the field through his quality improvement project on dyspnea in critically ill patients and has presented his work at multiple conferences. His scholarly activities include publications in the American Journal of Psychiatry and the Journal of the Academy of Consultation-Liaison Psychiatry. He is currently an active member of the American Psychiatric Association and the Academy of Consultation-Liaison Psychiatry, where he serves on the mentorship committee.
Education & Training
Stanford University School of Medicine
Clinical Fellow in Consultation-Liaison Psychiatry, Medicine
Jul 2023 - Jul 2024
St. John's Episcopal Hospital, New York
Psychiatry Residency - Chief Resident
Jul 2019 - Jul 2023
American University of the Caribbean
Doctor of Medicine - MD
May 2014 - Oct 2018
York University
Bachelor of Science - BS, Chemistry
Sep 2008 - Jul 2012
Experience
Attending Consultation - Liaison Psychiatrist
Amwell
Jan 2025 - Present • 1 yr • San Francisco, California, United States • Hybrid
Consultation - Liaison Psychiatrist
COMPREHENSIVE PSYCHIATRIC SERVICES, A MEDICAL GROUP
Jul 2024 - Present • 1 yr 6 mos • Walnut Creek, California, United States • Hybrid
Clinical Assistant Professor of Psychiatry
Keck School of Medicine of the University of Southern California
Jul 2024 - Dec 2024 • 6 mos • Los Angeles, California, United States • On-site
Clinical Fellow
Stanford University School of Medicine
Jul 2023 - Jul 2024 • 1 yr 1 mo • Palo Alto, California, United States • On-site
Psycho-oncology, Transplant Psychiatry, Consultation-Liaison Psychiatry, Psychosomatic Medicine, Critical Care Psychiatry
Psychiatry Resident
St. John's Episcopal Hospital
Jul 2019 - Jul 2023 • 4 yrs 1 mo • Queens, New York, United States • On-site
Psychiatry
Certifications & Memberships
Board Certification
American Board of Psychiatry & Neurology
Professional Memberships
- • American Psychiatric Association
- • Academy of Consultation-Liaison Psychiatry (Mentorship Committee Member)
Research & Specialized Training
Research & Contributions
Quality Improvement Project
Quality improvement project on dyspnea in critically ill patients. Presented at multiple conferences.
Publications
American Journal of Psychiatry
Published research in the Residents' Journal
Journal of the Academy of Consultation-Liaison Psychiatry
Published scholarly articles
Specialized Training
Dr. Okwuonu has specialized training in managing psychiatric complications in:
- •Intensive care settings
- •Surgical settings
- •Oncology settings
His unique background in pharmaceutical chemistry provides him with exceptional expertise in psychopharmacology, allowing for informed and effective medication management.