John Warren Barnhill, M.D.
< Back to Search Results

John Warren Barnhill, M.D.


Gender: Male
Language: English
Insurance: 3 accepted  View

Locations and Appointments



  • Adult Psychotherapy


  • Mood Disorder
  • Anxiety Disorder
  • Provide Second Opinion
  • Psychiatric Aspects of Physical Illness
  • Psychopharmacology and Psychotherapy
  • Psychodynamic Psychotherapy
  • Burn-Out


Board Certifications

  • Psychiatry
  • Psychosomatic Medicine

Clinical & Academic Positions

  • Attending Psychiatrist - NewYork-Presbyterian Hospital
  • Professor of Medical Ethics in Clinical Medicine - Weill Cornell Medical College, Cornell University
  • Professor of Clinical Psychiatry - Weill Cornell Medical College, Cornell University

Education & Training

  • M.D., Baylor College of Medicine, 1985


View Research

Personal Statement

Dr. John W. Barnhill is DeWitt Wallace Senior Scholar and Professor of Clinical Psychiatry and Medical Ethics at Weill Cornell Medicine. 

Within New York Presbyterian/Weill Cornell Medicine (NYP/WCM), Dr. Barnhill serves as Vice Chair for Consultation-Liaison Psychiatry, where he oversees the team of psychiatrists, psychologists, nurse practitioners, and trainees who work at the juncture between mental health and medical illness. 

This C-L team performs psychiatric consultations throughout NYP/WCM, NYP/Lower Manhattan, and the Hospital for Special Surgery (HSS). C-L psychiatrists work with three transplant services (heart, kidney, and liver), and multidisciplinary C-L psychiatric teams focus on HIV/AIDS and outpatient oncology.  Other members of the C-L psychiatry service see outpatients through the Collaborative Care Center (CCC) and the Weill Cornell Internal Medicine Associates (CIMA).

Dr. Barnhill's own liaison efforts focus on patients with advanced heart failure at NYP/WCM and on patients with rheumatologic, orthopedic, and sports issues at HSS. He is a Distinguished Fellow of the American Psychiatric Association, a Fellow of the Academy of Consultation-Liaison Psychiatry, and a member of the International Society for Sports Psychiatry.

Dr. Barnhill directs the House Staff Mental Health Service at NYP/WCM. In this role, he provides confidential consulting and referral services to NYP/WCM residents and collaborates with Wellness Services, NYP/WCM Program Directors, and the NYP Graduate Medical Education office.

Dr. Barnhill is a Guest Lecturer in Psychoanalysis at the Columbia University Center for Psychoanalytic Training and Researchwhere he is chair of the Ethics Committee.

In addition to direct supervision and teaching, Dr. Barnhill has served on most of WCM's education-related committees and on most of the psychiatry department's education and administrative committees. He has chaired the WCM General Faculty Council, the Payne Whitney Faculty Council, and the Board of the Society for Liaison Psychiatry.  

Dr. Barnhill's 6 psychiatric textbooks have been translated into 11 languages. They include:

Approach to the Psychiatric Patient, 2nd edition (2019). 

Co-Occurring Mental Illness and Substance Use Disorders: A Guide to Diagnosis and Treatment, edited with Dr. Jonathan Avery (2017)

DSM-5 Clinical Cases (2013)

Approach to the Psychiatric Patient (2008)

Dr. Barnhill's 70 book chapters and journal articles have focused on clinical diagnosis and treatment. Dr. Barnhill serves on the Editorial Board of American Psychiatric Publishing, the book publishing arm of the American Psychiatric Association. He also edits the anxiety section for the Merck Manual.

Dr. Barnhill has taught or consulted in the Middle East, Africa, Europe, and Asia. He has given talks on performance enhancing drugs to six Major League Baseball teams during Spring Training. He directs the psychiatry section of the annual Salzburg Weill Cornell Seminars, which are focused on the continuing education of young psychiatrists from developing countries, particularly in Eastern Europe. He serves on the WCM Faculty Committee for the Weill Bugando Medical College in Mwanza, Tanzania. To further these efforts, he has served on the International Psychoanalytic Association's and the American Psychiatric Association's Committees to the United Nations and on the United Nations Commission on the Status of Women.

Dr. Barnhill has maintained an outpatient psychiatric practice for over 25 years.


John W. Barnhill, MD has been on faculty at Weill Cornell Medicine since completing his psychiatry residency at New York Presbyerian/Weill Cornell Medicine in 1989. He has been involved in Consultation-Liaison (C-L) psychiatry since 2001. Prior to rejoining the full time faculty to do C-L, he spent a decade in private practice, during which time he graduated from the Columbia University Center for Psychoanalytic Training and Research. 




Insurance Plans Accepted

The following represents most of the managed care plans accepted by this physician. If your insurance carrier does not appear here please contact the physician’s office as they may have individual contracts not included on this site.

* indicates this physician is no longer accepting new patients with this insurance plan.

  • Aetna - Weill Cornell - POS
  • Medicare
  • Rockefeller University - CoreSource

Honors and Awards

Honors and Awards

Dr. Barnhill graduated magna cum laude from Duke University and received his medical degree from Baylor College of Medicine, where he won the Alumni Award for Service.

He is a Distinguished Fellow of the American Psychiatric Association, a Fellow of the Academy of Consultation-Liaison Psychiatry, and an elected member of the American College of Psychiatrists.

Dr. Barnhill is the 2018 winner of the Miriam G. Wallach Award for Excellence in Humanistic Medical Care, an annual award sponsored by New York Presbyterian/Weill Cornell Medicine.

In regards to teaching, Dr. Barnhill has won the full-time faculty teaching award from NYP/WCM's psychiatry residents, the John F. O'Connor Award for medical student teaching from the Columbia University Center for Psychoanalytic Training and Research, the Nancy C.A. Roeske Certificate in Medical Student Education from the American Psychiatric Association, the Edith Sabshin Teaching Award from the American Psychoanalytic Association, and twice won an excellence in medical student teaching award from Weill Cornell Medical College.