Dr. Velazquez has authored more than 250 peer-reviewed publications, chaired the American Society of Echocardiography's Taskforce on International Echocardiography, and is an associate editor for Circulation Cardiovascular Imaging. He is a fellow of the American College of Cardiology, American College of Physicians, American Society of Echocardiography, and American Heart Association. In 2014, he was elected to the American Society of Clinical Investigation.
As a clinical investigator, he has made major contributions in the design, development, and implementation of landmark clinical trials that have altered international guidelines and the treatment of patients with chronic heart failure. These programs have established the evidence for best practice standards, modified treatment guidelines, and have had a direct impact on the U.S. public health.