I joined Memorial Sloan Kettering in 1998 as a postdoctoral researcher with a PhD in high-energy physics from Columbia University. My early work here focused on the effects of organ motion in radiation therapy of the prostate and lungs.

I joined the faculty of a regional network site as an assistant chief physicist, where I continued to study the effects of organ motion, particularly in the lungs, and the impact of intensity-modulated radiation therapy on the shielding design for linear accelerators.

Later, I returned to the main campus to join the Department of Medical Physics’ External Beam Treatment Planning section, where I focused on developing new planning techniques for head and neck cancer. I also played a role in developing our image-guided radiation therapy program. In 2009, I was appointed Section Head of External Beam Treatment Planning.