James K. O'Brien, MD, FACP, FCCP

James K. O'Brien
Assistant Professor
Department of Medicine
Division of Pulmonary, Critical Care & Sleep Medicine
Section of Critical Care Medicine
James K. O'Brien, MD, is a pulmonologist at National Jewish Health. Dr. O'Brien is in the Section of Critical Care Medicine and Department of Medicine.

Special Interests

Clinical research and teaching interests are in COPD, alpa-1-antitrypsin deficiency, asthma, critical care, and practical medical ethics.


Awards & Recognition

Former visiting scholar at the Penn Center for Bioethics, Philadelphia, PA

Board Certification

Pulmonary, Critical Care, Sleep Medicine (ABSM)

Professional Memberships

Fellow in the American College of Physicians, Fellow in the American College of Chest Physicians, and member of American Thoracic Society         

Hospital Affiliations

  • Rose Medical Center
  • St. Joseph Hospital - Denver
  • Swedish Medical Center

Ask a Question through Patient Portal

Sign in to your My National Jewish Health patient portal account to communicate with your care team, manage appointments, and more. Create an Account

Contact Information

  • Office: 877.225.5654



  • National Jewish Health Main Campus
    1400 Jackson St.
    Denver, CO 80206

  • Saint Joseph Hospital
    1835 Franklin Street Denver, CO 80218

Patient Ratings

The Patient Rating score is an average of all responses to care provider related questions on our independent rating system, the Press Ganey Patient Satisfaction Survey.

Responses are measured on a scale of 1 to 5, with 5 being the best score. Learn more about our patient satisfaction survey.

Confidence in your doctor

Amount of time spent with you

Spoke using clear language

Includes you in decisions

Shows concerns for your questions

Explanation of problem/condition

Recommended to others



Comments are collected in our Press Ganey Patient Satisfaction Surveys. Patients are de-identified to protect confidentiality and patient privacy. Learn more about our patient satisfaction survey.

National Jewish Health PatientMay, 2017
I really like and enjoy my time spent with Dr. O'Brien, even when the news is not what I would like to hear!

National Jewish Health PatientMarch, 2017
I feel like I am really listened to by Dr. O'Brien, his care and respectfulness is appreciated.

National Jewish Health PatientFebruary, 2017
Extremely impressed with the care I received. Thank you.

National Jewish Health PatientFebruary, 2017
[Name] usually isn't fond of seeing his doctors but he no problem with his appointments with *Dr. O'Brien.

National Jewish Health PatientNovember, 2016
I have 100% confidence in Dr. James O'Brien, based on several years of being in his care.

National Jewish Health PatientOctober, 2016
I would whole heartedly recommend everyone to Jewish Hospital. Everyone I have seen there has been very good.

National Jewish Health PatientOctober, 2016
An excellent experience.

National Jewish Health PatientSeptember, 2016
Dr. O'Brien is a caring and friendly provider.