Yelena Janjigian

Yelena Y. Janjigian, MD, is Chief of the Gastrointestinal Oncology Service at Memorial Sloan Kettering Cancer Center in New York. A Harvard-trained physician-scientist (NYU MD, UC San Diego BS), she joined MSK’s faculty in 2009 and became chief in 2018. An expert in gastric and esophageal cancers, Dr. Janjigian led a pioneering combination of trastuzumab and pembrolizumab for HER2‑positive disease, achieving remarkable tumor responses and prompting a phase III follow‑up trial.