Raymond Chen MD

Raymond Chen, MD, is a thoracic surgeon specializing in cardiothoracic and vascular surgery in Los Angeles, California. He is board certified in thoracic and cardiac surgery and provides comprehensive surgical care for complex heart and thoracic conditions, with a focus on safety, precision, and long-term recovery. Dr. Chen completed rigorous postgraduate training in general surgery at Brigham and Women’s Hospital, followed by advanced fellowship training in thoracic surgery through the Mass General Brigham/Brigham and Women’s/Children’s Hospital program. In addition to his clinical practice, he serves as Assistant Chief of the Regional Department of Cardiac Surgery for the Southern California Permanente Medical Group. A clinician-investigator in cardiac surgery, Dr. Chen’s work emphasizes using technology to improve outcomes after cardiac surgery, including approaches that combine telemedicine follow-up with ECG-enabled wearable monitoring to help reduce readmissions. His prior research examined immune mechanisms involved in cardiac graft rejection. He has received recognition for research contributions, including the John Mannick Resident Research Award and a Young Investigator’s Award from the International Society for Applied Cardiovascular Biology. Dr. Chen is also a Clinical Professor of Clinical Science at the Kaiser Permanente Bernard J. Tyson School of Medicine. He speaks English and Mandarin.