John Fitzgerald, M.D.

John Fitzgerald, M.D.

  • Elaine Dewey Sammons Chair in Pulmonary Research, in Honor of John E. Fitzgerald, M.D.
  • Internal Medicine - Pulmonary and Critical Care Medicine
  • Interstitial Lung Disease (Pulmonary Fibrosis)
  • Lung (Pulmonary) Disorders


John Fitzgerald, M.D., is a Professor in UT Southwestern Medical Center’s Department of Internal Medicine. He is the Medical Director for UTSW’s Interstitial Lung Disease Program and clinical chief of service for pulmonary diseases at Parkland Memorial Hospital.

He also holds the Elaine Dewey Sammons Chair in Pulmonary Research. He joined the faculty of UT Southwestern in 1995, and is board certified in pulmonary medicine and critical care medicine.

Dr. Fitzgerald earned his medical degree at Washington University in St. Louis and completed his residency in internal medicine at UT Southwestern. He performed his fellowship in pulmonary and critical care medicine at the University of Colorado Health Science Center.

Dr. Fitzgerald is active in clinical research as well as patient care. As UT Southwestern’s principal investigator for IPFnet, he oversees clinical trials that aim to find new therapies for idiopathic pulmonary fibrosis, a disease that currently has poor outcomes. He’s also involved in clinical trials related to sarcoidosis and other autoimmune diseases.

U.S.News & World Report named Dr. Fitzgerald to its Best Doctors list in 2012. He is also a Texas Monthly Super Doctor and a D Magazine Best Doctor. 

Meet Dr. Fitzgerald

ILD Specialist

Diagnosing interstitial lung disease (ILD) can be complex. With hundreds of possible disorders, it takes experience to identify the correct disease. Pulmonologist John Fitzgerald, M.D., has the expertise to make the right diagnosis and find the best therapy to help patients.

Many of the patients who come to him have been told they have a particular disease but discover, through the efforts of Dr. Fitzgerald and his team, that they have another, similar disease that needs a much different treatment plan.

"We can radically alter a patient's care based on correct diagnosis," he says.

As Medical Director of UT Southwestern Medical Center's Interstitial Lung Disease (ILD) Program, Dr. Fitzgerald oversees a group that was the first ILD program in North Texas and features physicians who specialize in a variety of diseases that fall under the ILD umbrella.

Dr. Fitzgerald – a Texas Monthly Super Doctor and D Magazine Best Doctor – believes that educating patients, as well as community physicians, about the complex disorders that make up ILD is a key part of the care he offers. Many patients who’ve been told erroneous information elsewhere feel fear and discouragement, when, in fact, treatments may be available.

"We facilitate a deeper understanding of these complex disorders."

Dr. Fitzgerald also helps pioneer new treatments and better understanding of idiopathic pulmonary fibrosis (IPF), one of the more common interstitial lung diseases.

As a principal investigator for IPFnet, a multicenter clinical trial organization, Dr. Fitzgerald oversees UT Southwestern's participation in large-scale trials for the disease. He's also involved in trials researching sarcoidosis and other autoimmune diseases.

"Our goal is to find anything that improves the patient's quality of life, stabilizes or improves lung function, and lengthens survival," he says.

In addition to his work in clinical care and research, Dr. Fitzgerald takes great pride in educating the next generation of ILD physicians.

"We are constantly striving to find new and more effective means for teaching critical skills that lead to better clinical decision-making and overall clinical judgment," he says.

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Education & Training
  • Fellowship - University of Colorado School of Medicine (1992-1995), Pulmonary/critical
  • Residency - UT Southwestern Medical Center (1990-1992), Internal Medicine
  • Internship - UT Southwestern Medical Center (1989-1990), Internal Medicine
  • Medical School - Washington University in St. Louis
Professional Associations & Affiliations
  • Texas Medical Association
  • Dallas County Medical Society
  • American Thoracic Society
  • Fellow, American College of Chest Physicians (2011)
Honors & Awards
  • D Magazine Best Doctor 2020-2022
  • Best Doctors in America 2007-2014
  • International Biographical Centre Leading Health Professionals of the World 2014
  • D Magazine Best Doctor 2003-2014
  • Texas Super Doctors 2008-2014
  • America's Top Physicians: Consumer's Research Council of America 2009-2011
  • U.S. News & World Report Best Doctors 2012
  • Castle Connolly Medical Ltd Top Doctors 2012-2013
  • Biltmore "Who’s Who in America" 2010
  • Alpha Omega Alpha Medical Honor Society, Washington Univ 1988
  • Interstitial lung disease

Clinical Focus

  • Interstitial Lung Disease (Pulmonary Fibrosis)
  • Lung (Pulmonary) Disorders
  • Occupational/Environmental Lung Disease

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Q&A by Dr. Fitzgerald