Dr. Gregory Leigh Johnson, MD

Dr. Gregory Johnson specializes in cardiovascular disease with three decades of experience treating heart conditions in patients of all ages. He earned his medical degree from Creighton University School of Medicine and completed his residency at United States Army Medical Center. With 37 years in practice, Dr. Johnson brings extensive expertise to complex cardiac care. He is fluent in French, Spanish, Russian, and English.

Dr. Johnson practices at multiple locations throughout Austin, Cedar Park, and Round Rock, Texas, including major medical centers such as Ascension Seton Medical Center Austin and Dell Children's Medical Center of Central Texas. He focuses on treating congenital heart disease, heart valve problems, and atrial septal defects. His expertise includes performing specialized heart imaging tests such as stress echocardiograms and Doppler ultrasounds to evaluate heart function and diagnose cardiac conditions.