$$ Matthew Stuart Lemler, MD Professor at UT Southwestern Medical Center


UTSW Physician Practicing at Children's Health

Appointments: 214-456-2333

Board Certification American Board of Pediatrics/Pediatric Cardiology
Languages Spoken: English,


Matthew S. Lemler, M.D., is a pediatric cardiologist who practices at Children’s Health℠ and is a Professor of Pediatrics at University of Texas Southwestern Medical Center.

Dr. Lemler is active in all areas of pediatric cardiology; however, he has special interest and training in echocardiography, fetal echocardiography and the care of children born with complex heart disease that requires multiple stages of cardiac repair.

Dr. Lemler earned his medical degree at the University of Texas Medical Branch at Galveston in 1989. He then completed an internship and residency at Children’s Medical Center Dallas. Dr. Lemler completed a pediatric cardiology fellowship at the University of Colorado. He spent an additional year focusing on echocardiographic diagnosis of pediatric heart disease.

Dr. Lemler now serves as the Associate Clinical Director of Pediatric Cardiology. He has either authored or co-authored over 40 peer-reviewed papers related to pediatric cardiology. His research focuses on noninvasive imaging, management of complex congenital heart disease, cardiac effects of chemotherapy, and evaluation of cardiac function.

One of the most rewarding aspects of his practice is watching his patients, who are sick as infants, grow up to live normal, healthy and happy lives.

“I love seeing patients overcome their congenital heart conditions,” says Dr. Lemler. “I saw a patient the other day who is getting ready to go to dental school – after surviving two heart surgeries as a young child.”

Outside the hospital, Dr. Lemler values every minute he spends with his own family, which often includes swimming and watching his two daughters play volleyball.

Education and Training

Education and Training

Medical School

University of Texas Medical Branch at Galveston (1989)


Children's Medical Center Dallas (1990), Pediatrics


Children's Medical Center Dallas (1992), Pediatrics


Children's Hospital of Denver (1996), Pediatric Cardiology
Conditions & Treatments

Conditions & Treatments


Congenital Heart Defects
Single Ventricle Defect
Genetic Disorders

Research & Publications

Research & Publications

Research Interests

  • Aortic stenosis
  • Fontan procedure
  • Non-invasive imaging

Selected Publications

Professional Activities

Professional Activities

Professional Associations and Affiliations

  • American Academy of Pediatrics
  • American Heart Association
  • American Society of Echocardiography
  • Dallas County Medical Society
  • Society of Pediatric Echocardiography

Awards & Honors

Awards & Honors

  • Best Doctors in America - First awarded 2007, annually since (2011)
  • Young Investigator Award (2nd Place) - American Academy of Pediatrics (1999)