Ken Yamaguchi is Chief Medical Officer, Centene Corporation and a Sam & Marilyn Fox Distinguished Professor, Washington University. Dr. Yamaguchi completed his residency training at George Washington University. He then completed fellowship training in shoulder surgery at the internationally recognized Shoulder Service at the Columbian Presbyterian Medical Center in New York, followed by supplemental training in elbow surgery at the Mayo Clinic. Dr. Yamaguchi founded and remains active in one of the top shoulder and elbow fellowships in the world. In 2012, Dr. Yamaguchi received his MBA from the Olin Business School at Washington University in St. Louis. In addition to his current role as CMO at Centene, Dr. Yamaguchi is the Sam & Marilyn Fox Distinguished Professor at Washington University.