Dr. Siddhartha Mukherjee is an assistant professor of medicine at Columbia
University and a staff cancer oncologist at Columbia University Medical Center.
He recently received the 2011 Pulitzer Prize for General Nonfiction for 'The
Emperor of all Maladies.'
There is another person who has the same name Siddharta Mukerjee.
See http://siddharthamm.blogspot.com/ . In fact, they are two different people who are interested in cancer.
Numerous people were confused as they share the same name.