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

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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. This survey is about the patient care experience and does not address crucial characteristics like medical decision-making, prescribing the best therapy, and patient outcomes.

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


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 PatientDecember, 2018

National Jewish Health PatientOctober, 2018
Superb physician spent a great deal of time with me, was thorough, knowledgeable & empathetic.

National Jewish Health PatientOctober, 2018
awesome doc good man

National Jewish Health PatientSeptember, 2018
All of the people worked as a team !

National Jewish Health PatientJuly, 2018
He is fabulous but very, very busy - too busy.

National Jewish Health PatientJune, 2018
Dr O'Brien was very professional and showed concern about resolving my health problems. He is a "10."

National Jewish Health PatientDecember, 2017
*Dr. O'Brien was "filling in" for the scheduled provider and "hit the ground running" very quickly understanding my situation.

National Jewish Health PatientOctober, 2017
Doctor O'Brien was excellent in every respect as was [name] our Ambassador

National Jewish Health PatientOctober, 2017
Dr. O'Brien is a friendly and capable doctor. I'm lucky to have him as a provider.

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!

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