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Peter Tsai, M.D.

Chair and Medical Director, Division of Cardiothoracic Surgery

Specialties : Allergy and Immunology
Languages : English
Areas of expertise : Bypass Surgery, Minimally Invasive Valve Surgery, Mitral Valve Repair / Replacement Aortic Valve Replacement, Aortic Aneurysm Surgery, Surgery for Cardiac Failure, Mediastinal, Chest Wall and Pulmonary Oncology


Accepts New Patients


Yuma Regional Medical Center Cardiovascular and Thoracic Surgery Clinic
1501 W. 24th Street, Suite 203
Yuma, AZ 85364
Phone: 928-336-1675

Care Philosophy

The heart really is such a wonderful organ to treat – this beating organ. You can actually touch it, and in the process, you can touch patients’ lives. You can improve upon their lives, make their lives better.

Dr. Peter Tsai received his medical degree from Keck School of Medicine, University of Southern California (USC) in Los Angeles. He completed a surgical internship/residency at USC/Los Angeles County, and completed his surgical residency at Kaiser Permanente in Los Angeles. During the same time period, Dr. Tsai also completed two years of basic science, studying molecular receptors in the pathogenesis of Barrett’s esophagus, and completed an Esophageal Fellowship, as well as a one-year Exchange Program Clinical Registrar in Surgery in the United Kingdom. He completed his residency training in cardiovascular and thoracic surgery at Baylor College of Medicine and Texas Heart Institute, in Houston, TX, under the esteemed cardiovascular giants in the field - Professor Michael E. DeBakey and Professor Denton A. Cooley. Dr. Tsai began his career at the Baylor College of Medicine (BCM) as Assistant Professor of Surgery (Tenure Tract) as full-time faculty and Medical Director of cardiothoracic surgery at Ben Taub General Hospital in Houston, TX. He quickly rose to the rank of Associate Professor of Surgery, garnering the Fulbright Jaworsky LLP Excellence in Teaching Award and Rising Star Clinician Award, which were the highest awards given to junior faculty at BCM. Dr. Tsai worked alongside Professor Kenneth L. Mattox, a world-famous trauma surgeon, an experience which also gave him a unique role in functioning both as a cardiothoracic surgeon as well as a trauma surgeon.

Dr. Tsai specializes in coronary arterial disease, cardiac valve pathologies related to the aorta, mitral and tricuspid valves, and aortic root problems, as well as pulmonary and esophageal pathologies. His research focuses on aneurysmal or traumatic presentations of aortic pathology requiring repair, as well as patient safety mechanisms by means of procedure or monitoring related outcomes. To this end, the goal requires teamwork with multidisciplinary collaborations, which he does with Cardiology, Pulmonary Critical Care, and Cardiac Anesthesiology services for projects in patient safety and care.

Dr. Tsai joined Yuma Regional Medical Center (YRMC) in 2016, as Chairman and Medical Director of Cardiovascular and Thoracic Surgery. He has recently been appointed the Medical Director for the entire Cardiovascular and Thoracic Service Line. This responsibility includes medical oversight for the entire service line including Cardiology, Pulmonology, Vascular Surgery, Thoracic Surgery, Neurology and Cardiac Surgery, with the goal of streamlining and coordinating the best possible care for patients in Yuma County. He is excited to join the team and develop additional services in Yuma through state of the art and best practices in patient care. Dr. Tsai also has interests in developing innovative cardiovascular tools and patents which he has started while at BCM and will continue during his tenure at YRMC, and has an immediate role in the educational program and residency as a faculty in Family Practice Residency in YRMC.

Medical Degree - Keck School of Medicine, University of Southern California in Los Angeles
General Surgery Residency - University of Southern California/Los Angeles County in Los Angeles, CA and Kaiser Permanente in Los Angeles, CA
Thoracic Surgery Residency - Baylor College of Medicine in Houston, TX
Special Training - Esophageal Fellowship and Exchange Program Clinical Registrar in Surgery in the United Kingdom
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