John Fitzgerald, M.D., is a Professor in the Department of Internal Medicine at UT Southwestern Medical Center and a member of the Division of Pulmonary and Critical Care 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.

We can radically alter a patient's care based on the correct diagnosis.

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

Certified by the American Board of Internal Medicine in pulmonary and critical care medicine, Dr. Fitzgerald joined the UT Southwestern faculty in 1995. He holds the Elaine Dewey Sammons Chair in Pulmonary Research.

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.


Medical School
Washington University in St. Louis (1989)
UT Southwestern Medical Center (1990), Internal Medicine
UT Southwestern Medical Center (1992), Internal Medicine
University of Colorado School of Medicine (1995), Pulmonary/critical

Research Interest

  • Interstitial lung disease

Honors & Awards

  • Castle Connolly Medical Ltd Top Doctors
  • U.S. News & World Report Best Doctors
  • Biltmore "Who’s Who in America"
  • America's Top Physicians: Consumer's Research Council of America
  • Texas Super Doctors
  • Best Doctors in America
  • “D” Magazine list: Best Doctors in Dallas
  • Alpha Omega Alpha Medical Honor Society, Washington Univ
  • International Biographical Centre Leading Health Professionals of the World 2014

Professional Associations/Affiliations

  • American Thoracic Society
  • Dallas County Medical Society
  • Fellow, American College of Chest Physicians (2011)
  • Texas Medical Association