Book an Appointment with Mary Lee, DO

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Dr. Mary Lee was born and raised in Central Texas until her high school years. She is a board-certified internist and board-eligible cardiologist. She joins Austin Heart as a General Cardiologist with advanced certification in echocardiography and vascular studies. 

She earned her undergraduate degree from Baylor University with a major in Neuroscience and earned her master's degree in Cell and Molecular Biology at University of Texas at Dallas. She then went on to medical school and Edward Via College of Osteopathic Medicine which also provided her the opportunity to participate in international medical mission trips. 

She attended Texas A&M-Baylor Scott and White in Temple, Texas for her internal medicine training and continued there for her cardiovascular fellowship training.

Dr. Lee has participated in scholarly activity throughout her training, presenting at the American College Cardiology and producing several publications. Her special interests include preventative cardiology, women’s cardiovascular health, and cardiac imaging.

In her free time, she enjoys hiking, traveling, running and spending time with her soon-to-be husband, dog, and family.


Medical School
Edward Via College of Osteopathic Medicine

Internal Medicine - Texas A&M-Baylor Scott and White, Temple, Texas

Cardiovascular Disease - Texas A&M-Baylor Scott and White, Temple, Texas

Certifications & Memberships

Internal Medicine



Languages Spoken


Procedures & Conditions

Acute Myocardial Infarction (Heart Attack), Angina, Aortic Valve Stenosis, Arrhythmia (Irregular Heartbeat), Atherosclerosis, Atrial Fibrillation (A-Fib), Bradycardio (Low Heart Rate), Cardiomyopathy, Congenital Heart Disease, Congestive Heart Failure (CHF), Connective Tissue Disorders, Heart Disease, Hypertension (High Blood Pressure), Mitral Valve Disease, Pericarditis, Peripheral Artery Disease (PAD), Pulmonary (Lung) Embolism, Pulmonary Hypertension, Tachycardia (Rapid Heart Rate), Cardiac Stress Testing, Direct Current Cardioversion, Echocardiography, Holter Monitoring Services, Preventive Cardiology, Transesophageal Echocardiography (TEE), Carotid Ultrasound, Nuclear Stress Testing, Right Heart Catheterization, Coronary Angiography.


Cardiovascular Disease

Office Locations

Austin Heart - San Marcos
1251 Sadler Drive
Building J, Suite 2100
San Marcos, TX 78666
Phone: (512) 396-5603

Additional Locations

Kyle - Austin Heart

4100 Everett, Suite 210
Kyle, TX 78640
Phone: (512) 396-5603
Fax: (512) 407-1480