Kern Buckner
Chief, Division of Cardiology
Department of Medicine
Division of Cardiology
5280 Top Doctors 2016 (13th year)
Best Doctors in America® 2015-2016 — Best Doctors, Inc.
Kern Buckner, MD, is a cardiologist at National Jewish Health. Dr. Buckner serves as Chief of the Division of Cardiology in the Department of Medicine.

Special Interests

Clinical Interests

General Cardiology with an emphasis on dyspnea of unknown origin, human performance and exercise, intracardiac shunts and hypoxia, pulmonary hypertension, cardiopulmonary physiology in exercise and pulmonary hypertension, cardiac catheterization.


Research Interests

Right heart-lung coupling and physiology in human performance/exercise, and pulmonary hypertension.


Duke University, MD
University of North Carolina, Chapel Hill, Pre-Medicine Special Student
University of North Carolina, Chapel Hill, BA
University of Colorado Denver,
University of Colorado Denver,
University of Colorado Denver, Chief Medical Resident
University of Colorado Denver, Division of Genetics and Cardiology Fellowship
University of Colorado Denver, Division of Cardiology, Cardiology Fellowship

Awards & Recognition

2014: Best Doctors in America, Best Doctors, Inc.
1993, 2004-2005, 2008-2012: Top Doctors in Denver
2009: USA Today Most Influential Doctors 2009
2006, 2008: Guide to America’s Top Cardiologists
2006, 2008: Guide to America’s Top Physicians
2000, 2005-2006, 2008-2012: Best Doctors in America
1999, 2001-2002: Guide to Top Doctors

Board Certification

American Board of Internal Medicine
American Board of Internal Medicine-Cardiovascular Diseases
American Board of Internal Medicine-Interventional Cardiology
Board of Cardiovascular Computed Tomography

Professional Memberships

American Heart Association
American Society of Echocardiography
Society of Atherosclerosis and Imaging
Society of Cardiovascular Computed Tomography
New York Academy of Science


Hossack KF, Eldrige JE, Buckner JK. Comparison of acute hemodynamic effects of nitroglycerin versus diltiazem and combined acute effects of both drugs in angina pectoris. Amer J Card 1986; 58:722-726

Lesnefsky EJ, Pacheco J, Adcock K. Buckner JK, Van Benthuysen KM. Thallium scintigraphic evidence of reversible myocardial ischemia caused by anomalous origin of the left main coronary artery from the anterior sinus of valsalva. Amer Heart J 1987; 114:896-7

Krueger DW, Morrison DA, Buckner JK, Kelley K, Lindenfeld J. Is ST elevation the only electrocardiographic response of the ischemic right ventricle? Amer J Card 1991; 68(8):832

Fenster BE, Freeman AM, Weinberger HD, Buckner JK.  Recurrent Transient Mid-Ventricular Ballooning. Int J Cardiol 2011; 152(2): e35-6. PMID 21112651

Nguyen BH, Satterfield L, Kim MS, Fenster BE, Weinberger HD, Buckner JK, Freeman AM, Carroll JD. Percutaneous closure of patent foramen ovale for systemic hypoxemia: Patient characteristics and results in 104 patients. Circ 2010 Nov 23; 122(21)S1

Hospital Affiliations

  • University of Colorado Hospital

Academic Affiliations

Assistant Clinical Professor of Medicine, School of Medicine

Teaching & Professional Positions

Medical Director, Cardiac Catheterization Laboratory
Member, Medical Executive Committee

Contact Information

  • Office: 877.225.5654



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

  • National Jewish Health Highlands Ranch
    8671 S Quebec St, Suite 120 Highlands Ranch, CO 80130

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 PatientDecember, 2016

National Jewish Health PatientDecember, 2016
Dr. Buckner is the best

National Jewish Health PatientDecember, 2016
I would recommend Dr. Buckner 100 times over again.

National Jewish Health PatientNovember, 2016
Dr. Buckner provides the very highest quality of care. He is an outstanding provider.

National Jewish Health PatientOctober, 2016
Dr. Buckner himself is most delightful, caring, and most knowledgeable. He is the reason I travel many miles to see him.

National Jewish Health PatientSeptember, 2016
Dr. Buckner is who every young doctor should strive to emulate!!!!!!!!!!!!!!!!!!!

National Jewish Health PatientSeptember, 2016
Everything was great. I love National Jewish and all the doc's!

National Jewish Health PatientAugust, 2016
I am privileged to have *Dr. Buckner as my heart doctor; he cuts to the chase with his knowledge and understanding. He does not waste his time or mine and yet is totally engaged with me. I wish a long life for him so that he will be there when I check out.

National Jewish Health PatientMay, 2016
I consider Kern Buckner to be a friend of mine. We enjoy talking to each other. I even give him advice!

National Jewish Health PatientMarch, 2016
Good! *Dr. Buckner is the best doctor! He takes the time to explain everything and is so pleasant.