James J. Fenton
James J. Fenton, MD, is a pulmonologist at National Jewish Health. Dr. Fenton is in the Division of Pulmonary, Critical Care and Sleep Medicine.
National Jewish Health South Denver
Associate Professor
Division of Pulmonary, Critical Care & Sleep Medicine
Department of Medicine
Previously a 5280 Top Doctor (13 years)
Best Doctors in America® 2019-2020 — Best Doctors, Inc.
America’s Top Doctors 2020 — Castle Connolly Medical, Ltd.

Special Interests

Research Interests

Ventilation of spinal cord injured patients.


Ohio State University College of Medicine, MD
University of Notre Dame, BS
University of Florida Health Sciences Center (Gainesville), Internal Medicine
Lahey Clinic Medical Center, Interventional Pulmonology
University of Florida Health Sciences Center (Gainesville), Pulmonary and Critical Care

Awards & Recognition

2014 and 2015: Best Doctors in America, Best Doctors, Inc.
2006-2011:Denver's 5280 Magazine, “Top Doctors”
1996-2005: Chest Journal, Manuscript Reviewer
Fellow, American College Chest Physicians (FCCP)

Board Certification

1996, 2006: Pulmonary Medicine
1997, 2007: Critical Care Medicine

Professional Memberships

Fellow, American College of Chest Physicians


Fenton, J “Chest X-Ray” in Cardiology Secrets 2nd Edition Adair, O; Hanley & Belfus, Philadelphia. 2001.

Mastin ST, Drane WE, Harman, EM, Fenton, JJ, Quesenberry, L. FDG SPECT in patients with Lung Masses. Chest, 1999; 115:1012-1017.

Fenton JJ, Beamis JF. Laser Bronchoscopy. In, Beamis JF, Mathur PN eds. Interventional Pulmonology. New York: McGraw-Hill, 1999; 43-67.

FentonJJ, Cicale MF. Sigmoid Diverticular Perforation Complicating Lung Transplantation. J Heart Lung Transpl 1997 Jun: 16(6):681-5.

Hospital Affiliations

  • Craig Hospital
  • Littleton Adventist Hospital
  • Porter Adventist Hospital
  • Select Specialty Hospital
  • Swedish Medical Center

Teaching & Professional Positions

2007-Present: Director, Comprehensive Lung Cancer Program, Swedish Medical Center
2006-Present: Respiratory Care Director, Craig Hospital

Conflicts of Interest

National Jewish Health physicians and scientists may collaborate with pharmaceutical or other industries to develop medical and scientific breakthroughs or to provide education on trends in quality medical practice and outcomes to physicians and health professionals around the country. National Jewish Health maintains a strict conflict of interest policy to ensure that all potential conflicts are clearly visible and that management plans are put in place in order to further innovation and education while ensuring the protection of our patients and the integrity of our research. National Jewish Health publicly discloses any payment to our physicians or scientists. View this faculty member’s industry relationships and collaborations.

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Contact Information

  • Office: 303.788.8500
  • Fax: 303.788.8505



  • National Jewish Health South Denver
    499 East Hampden Ave, Suite 300 Englewood, CO 80113

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.

Provider showed concern


Spoke using clear language

Provider explained things clearly

Amount of time spent with you

Provider included you in decisions

Confidence in your doctor

Likelihood of recommending this provider


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 PatientJune, 2020
Dr. Fenton is the best.

National Jewish Health PatientJune, 2020
*Dr. Fenton obviously had gone over my paperwork before he came into the exam room. (Not all drs. do that.) I appreciated not having to go over everything I had recorded on my papers.

National Jewish Health PatientMay, 2020
I have always been very well served by Dr. Fenton and his staff.I have been seeing him for a number of years. I'am [phi] well pleased

National Jewish Health PatientApril, 2020
consistently excellent

National Jewish Health PatientMarch, 2020
*Dr. Fenton is very caring and described treatment thoroughly.

National Jewish Health PatientMarch, 2020
Dr. Fenton is amazing. He answers all of my questions and explains my issues fully and explains tests that I have had. He includes me in all decisions regarding my health options. Wish all care givers were like Dr. Fenton!

National Jewish Health PatientFebruary, 2020
Very good at speaking in lay terminology.

National Jewish Health PatientFebruary, 2020
I have been seeing *Dr. Fenton for several years. He is excellent - kind & caring - & has provided me a very good explanation for my [conditions]. I would not consider any other pulmonologist.

National Jewish Health PatientFebruary, 2020
All doctor's involved took the time to explain, listen to concerns and address them

National Jewish Health PatientJanuary, 2020
I was treated respectfully and patiently while in the treatment room. Nothing but good things to say about the visit.

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