Colorectal Cancer Treatment Team

Colorectal Surgery

Evangelos Messaris, MD, PhD, FACS, FASCRS

Chief, Colon and Rectal Surgery

Thomas E. Cataldo, MD

Colon and Rectal Surgery

Nurse Coordinator

Female Doc Silhouette

Jeanne Quinn, MS, APRN-BC

Rectal Cancer Program Coordinator

Medical Oncology

Benjamin L. Schlechter, MD

Medical Oncology

Jessica A. Zerillo, MD, MPH

Medical Oncology

Radiation Oncology

Matthew Abrams, MD

Radiation Oncology

Diagnostic Radiology (Colorectal) 

Robert A. Kane, MD

Chief, Body and General Ultrasound

Koenraad Mortele, MD

Chief of Abdominal Imaging (MRI)

Bettina Siewert, MD

Executive Vice Chair for Radiology

Martin P. Smith, MD

Abdominal Imaging (MRI), Community Network Services

Jesse L. Wei, MD

Abdominal Imaging (MRI)


Gamze Ayata, MD

Pathology; Program Director, Cytopathology Fellowship

Tracy L. Challies, MD

Anatomic Pathology; Program Director, Selective Pathology Fellowship

Jonathan N. Glickman, MD

Director of Surgical Pathology & Gastrointestinal Pathology

Jeffrey D. Goldsmith, MD

Associate Professor, Pathology, Harvard Medical School 

Kanchan Kantekure, MD



Katharine Germansky

Katharine A. Germansky, MD

Gastroenterology          Director, GI Cancer Genetics and Prevention Program