Dr. William R. Herzog, Jr., MD, is a cardiologist with Cardiovascular Specialists of Central Maryland and has privileges at Howard County General Hospital in Columbia, Maryland.

In this video he discusses what a coronary stent is and why a patient may need one. For more information about the cardiac and vascular services available at Howard County General Hospital, Johns Hopkins Medicine, please visit http://www.hcgh.org/heart.

In June 2023, the hospital was renamed Johns Hopkins Howard County Medical Center.