Nicholas Kenyon, M.D., M.A.S.

Nicholas J. Kenyon, M.D., M.A.S.


Internal Medicine

Pulmonary and Critical Care


Internal Medicine


  • Co-Director, UC Davis Asthma Network (UCAN)
  • Professor
  • Chief, Division of Pulmonary, Critical Care and Sleep Medicine
To see if Nicholas J. Kenyon is accepting new patients, or for assistance finding a UC Davis doctor, please call 800-2-UCDAVIS (800-282-3284).

UC Davis Medical Group - Sacramento (J Street)

2825 J St., Suite 400
Sacramento, CA 95816
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Primary Phone:

Additional Phone Numbers

Physician Referrals: 800-4-UCDAVIS (800-482-3284)

Clinical Interests

Dr. Kenyon's clinical interests focus on asthma, non-invasive markers of airway disease, chronic obstructive pulmonary disease (COPD) and sepsis.


Research/Academic Interests

My research interests are in airways diseases and critical care medicine. As a physician-scientist and Co-Director of the UC Davis Asthma Network (UCAN) clinics with a research interest in adult severe asthma, my laboratory staff and I are working to develop the next medications to improve the care of all patients with asthma.

My emphasis in asthma therapeutics focuses on the role of nitric oxide in airway inflammation. I was the recipient of an NIH career development award to study the effects of nitric oxide in models of airway inflammation and this work translated into an FDA new drug application to study L-arginine in adult severe asthma.

I presently have NIH funding to perform a Phase II clinical trial of L-arginine supplementation in asthma. In addition, I have collaborations with other UC Davis investigators to run intervention trials in asthma and to test novel asthma drugs in animal models.  With colleagues in the College of Engineering, we are developing breath sensor technologies that will be handheld and phone-based to improve care for patients with asthma.

My training and translational research has depended heavily on the UC Davis Clinical and Translational Science Center and I am grateful for their efforts.To help train the next generation of physician-scientists and clinical fellows, I serve the Director of the CTSC Pre-doctoral Training Program and Associate Director of our NIH Training Program in pulmonary medicine and the Center of Comparative Respiratory Biology and Medicine.  



Pulmonary and Critical Care Medicine


M.D., University of Vermont College of Medicine, Burlington, Vermont, 1994

B.A., Amherst College, Amherst, Massachusetts, 1988

M.S., UC Davis, Davis, California, 2005


Chief Resident, University of Wisconsin Hospitals and Clinics, Madison, Wisconsin, 1997-1998

University of Wisconsin Hospitals and Clinics, Madison, Wisconsin, 1994-1997


UC Davis Medical Center, Sacramento, California, 1998-2001

Board Certifications

American Board of Internal Medicine, 2007

American Board of Internal Medicine, Critical Care Medicine, 2002

American Board of Internal Medicine, Pulmonary Medicine, 2001

Professional Memberships

American College of Chest Physicians

American College of Physicians

American Physiological Society

American Thoracic Society

California College of Chest Physicians

Society of Critical Care Medicine

Honors and Awards

Association of American Medical Colleges Award for Innovative Institutional Partnerships in Research and Research-Focused Training, 2013

Joan Oettinger Memorial Research Award, 2012

Outstanding Teaching Award, Pulmonary/Critical Care Medicine Fellows, 2008

Paper of the Year Award - Society of Toxicology, Inhalation and Respiration Section, 2007

Select Recent Publications

To view Dr. Kenyon's publications, please click here.