John Warren Barnhill, M.D.
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John Warren Barnhill, M.D.


Profile Photo of John Warren Barnhill, M.D.
Accepts New Patients
Gender: Male
Language: English


Personal Statement

Dr. John W. Barnhill is DeWitt Wallace Senior Scholar, Professor of Clinical Psychiatry, and Professor of Medical Ethics at Weill Cornell Medicine. He is also Adjunct Clinical Professor of Psychiatry at the Columbia University College of Physicians and Surgeons and an Attending Psychiatrist at New York Presbyterian Hospital.

Dr. Barnhill's clinical efforts have included 15 years as service chief and/or departmental vice chair for consultation-liaison psychiatry at New York Presbyterian/Weill Cornell Medicine (NYP/WCM). For five years, he directed NYP/WCM's mental health services for all house staff. He currently serves as psychiatric liaison to the NYP/WCM kidney transplant services after having previously worked with teams from cardiology and dermatology. Since 2010, he has been chief of psychiatry at the Hospital for Special Surgery, where he works with rheumatologists, orthopedic surgeons, social workers, and other members of the HSS health care team. 

Dr. Barnhill's scholarly efforts have focused on the psychiatric assessment and treatment of people who present with some combination of sadness, anxiety, stress, substance use, burnout, comorbid medical conditions, and relationship issues.

Dr. Barnhill's six books include: "Approach to the Psychiatric Patient, 2nd edition" (2019), a text that includes over 100 authors from Weill Cornell or Columbia; "Co-Occurring Mental Illness and Substance Use Disorders: A Guide to Diagnosis and Treatment," edited with Dr. Jonathan Avery (2017); and "DSM-5 Clinical Cases" (2013), which is a companion book to the official manual for psychiatric diagnoses. These books have been translated into a total of 12 languages. He is currently working on an update to "DSM-5 Clinical Cases" that will accompany the revised DSM-5 in 2021.

Online, Dr. Barnhill edits the Anxiety, Stress, and Trauma section for the Merck Manual; in 2019, his chapter received 1.7 million internet "hits."  

Dr. Barnhill chairs the NYP/WCM psychiatry department's Appointments and Promotions Committee as well as its Committee on Faculty Development. He has served on most of WCM's medical student education committees and on most of the psychiatry department's education and administrative committees.  He has served on the NYP/WCM Ethics Committee since 2001. He has chaired the WCM General Faculty Council (the representative body for all WCM faculty) and the Payne Whitney Faculty Council (which represents the 500+ members of the psychiatry faculty).

Outside of NYP/WCM, Dr. Barnhill chairs the Ethics Committee for the Psychoanalytic Center at Columbia University, where he also teaches the Ethics course to advanced psychoanalytic candidates.

Between 2013 and 2019, Dr. Barnhill served on the editorial board for books published by the the American Psychiatric Association. 

Since 2015, Dr. Barnhill has directed 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 has served on the WCM Faculty Committee for the Weill Bugando Medical College in Mwanza, Tanzania and 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 lectured or consulted throughout the country, as well as the Middle East, Africa, Europe, and Asia.

Dr. Barnhill has maintained a private psychiatric practice throughout his career. 

Specialties and Expertise


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




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 Life 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.

Other Awards:

2018    Miriam G. Wallach Award for Excellence in Humanistic Medical Care, New York Presbyterian Hospital/Weill Cornell Medicine               

2016    Edith Sabshin Award for Teaching, American Psychoanalytic Association                                                             

2012    Nancy C.A. Roeske Certificate in Medical Student Education,  American Psychiatric Association                     

2009    Award for Excellence in Medical Student Teaching, Weill Cornell Medicine

2008     John F. O'Connor Award for Medical Student Teaching, Columbia Psychoanalytic Center 

2005     Award for Excellence in Medical Student Teaching, Weill Cornell Medicine

2003     Best Full Time Faculty Teacher, Psychiatry Residents, New York Presbyterian Hospital/Weill Cornell Medicine (Payne Whitney Clinic)                                                                                                 



Board Certifications

  • American Board of Psychiatry & Neurology (Psychiatry)
  • American Board of Psychiatry & Neurology (Psychosomatic Medicine)

Clinical and Academic Positions

  • Attending Psychiatrist - NewYork-Presbyterian Hospital
  • Professor of Medical Ethics in Clinical Medicine - Weill Cornell Medical College, Cornell University
  • Adjunct Professor of Clinical Psychiatry - Columbia University College of Physicians and Surgeons
  • DeWitt Wallace Senior Scholar - Weill Cornell Medical College, Cornell University
  • Professor of Clinical Psychiatry - Weill Cornell Medical College, Cornell University

Education and Training

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


Insurance Plans Accepted

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

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

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

Locations and Appointments

External Relationships

External Relationships

Relationships and collaborations with for-profit and not-for profit organizations are of vital importance to our faculty because these exchanges of scientific information foster innovation. As experts in their fields, WCM physicians and scientists are sought after by many organizations to consult and educate. WCM and its faculty make this information available to the public, thus creating a transparent environment.

Proprietary Interest: