Interventional Cardiology | MedStar Health

Experts in lifesaving minimally invasive cardiovascular care

Interventional cardiology uses minimally invasive techniques for patients who need heart or vascular treatment. We are one of the region’s highest-volume interventional cardiology programs, averaging more than 12,000 procedures a year at MedStar Health. Our doctors treat patients in advanced labs dedicated to cardiac catheterization , with integrated imaging and interventional technology for the most favorable outcomes.

Our doctors are national leaders in the use of transradial catheterization. During this minimally invasive procedure, doctors insert a catheter into an artery in the wrist rather than the groin to reach the heart. For most patients, this approach offers a faster recovery time with less pain and bleeding.

A team of MedStar cardiology doctors stand in a cardiac catheterization lab surrounded by modern technologic equipment.
MedStar Washington Hospital Center interventional cardiologists.

We constantly push the envelope of interventional cardiology. Every week, our Cardiac Catheterization Conference, open to doctors and researchers all over the world, keeps our team on the leading edge of the latest advances in the field. We’re always among the nation’s first sites to evaluate new technologies and treatments. And our doctors serve as expert consultants for cardiologists throughout the mid-Atlantic region, evaluating hundreds of complex cases each month.

John Wang

John Wang, MD, Chief of the Cardiac Catheterization Laboratory at MedStar Union Memorial and Scientific Director for Baltimore Cardiovascular Research

Some of the many procedures our nationally recognized interventional cardiologists offer include:

Our providers

Dr. Nauman Siddiqi and Dr. John Wang

Expert cardiology care

Getting the care you need starts with seeing one of our interventional cardiologists.

Cardiovascular Capabilities Report

Performance, capabilities, and outcomes: 2023-2024

MedStar Heart & Vascular Institute is committed to transparency and ongoing research, both of which make it possible for us to refine diagnoses, innovate treatments, and expand programs to better serve our patients.

This is the fourth in our series of biennial capabilities reports specifically developed to openly share data and engage with other heart care providers, researchers, and patients. We believe that transparency in medicine – in which “much is known by many” – helps all of us as we strive to provide the highest level of quality care possible for every patient, every time.

Read our latest report

Ask MedStar Heart & Vascular Institute

Have general questions for our heart and vascular program? Email us at If you have clinically-specific questions, please contact your physician’s office.