Cristina Yang is a researcher, chief medical officer, and director of cardiothoracic surgery at the Klausman Institute for Medical Research and formerly a cardiothoracic surgery fellow at Grey Sloan Memorial Hospital. She was raised in Beverly Hills, California and is a graduate of Smith College. She earned her Ph.D. in Biochemistry from University of California, Berkeley, and she earned her M.D. from Stanford University, where she graduated first of her class. She did her internship and residency at Seattle Grace Hospital (later Seattle Grace Mercy West Hospital). She is best friends with Meredith Grey. She was engaged to Preston Burke, until he left her at the altar. Eventually, she met Owen Hunt, and married him. They ultimately divorced but later kissed, leading to a post-divorce relat