Dr. Connor O'Brien

Connor O’Brien, MD, is a cardiologist specializing in cardiac critical care and echocardiography. He is an Assistant Professor of Cardiology and the Associate Director of the Cardiac Intensive Care Unit at UCSF Health. Clinically, he focuses on cardiac intensive care, hemodynamic support and resuscitation, and echocardiography-guided management. His research centers on translational cardiology, with interests in regenerative therapeutics and cell-based strategies, biomarker discovery and risk stratification in critical cardiac illness, and the development of molecular cargo as diagnostic and prognostic tools. Honors include the JACC CardioOncology Young Author Achievement Award, Stanford’s Timothy F. Beckett Award, the Gerald Reaven Award in Basic Science, Best Clinical Fellow Award, and election to Alpha Omega Alpha and the Gold Humanism Honor Society. He earned his medical degree from Columbia University Vagelos College of Physicians and Surgeons, completed internal medicine residency at Stanford University, and pursued fellowships in cardiovascular medicine and critical care medicine at Stanford, where he served as Chief Fellow.