Meet Your Gastroenterology Team

BID-Needham’s Gastroenterology team includes board-certified gastroenterologists and other highly trained providers with expertise in diagnostic and therapeutic endoscopy.


Steven B. Cohen, MD
Chief of Gastroenterology

Simren Sangha, MD


Matthew Sullivan, MD


Michal Tomczak, MD

Sonal Ullman, MD

Jill Sullivan, RN