Gastrointestinal Cancer Center of Excellence

About Our Physicians

Ronald Chamberlain, MD, MPA, FACSRonald Chamberlain, MD, MPA, FACS
Chairman of the Department of Surgery

Dr. Chamberlain specializes in surgical oncology (cancer surgery) with a particular emphasis in upper gastrointestinal surgery (stomach, bile duct, gall bladder, duodenum, and liver and pancreas), sarcoma surgery, and advanced laparoscopic surgery. In addition to performing surgery, Dr. Chamberlain serves as Surgical Director of Cancer Surgery Services at SBMC, surgical leader of the Cancer Committee, and chair of the Operating Room Committee. He has developed a multidisciplinary Gastrointestinal Cancer Center of Excellence at Saint Barnabas to meet the complex needs of these patients.

Prior to joining the Saint Barnabas staff in 2004, Dr. Chamberlain served as Chief of Hepatobiliary and Pancreatic Surgery, Program Director of the General Surgery Residency and Assistant Professor of Surgery at Beth Israel Medical Center Albert Einstein College of Medicine in New York. He has completed a Surgical Oncology Fellowship at the National Cancer Institute, a Hepatobiliary Surgery Fellowship at Memorial Sloan-Kettering Cancer Center and a Minimally Invasive Surgery Mini-Fellowship at Yale University School of Medicine. Dr. Chamberlain was named to the New Jersey, New York Metro Area, and New York Magazine Best Doctor’s list.

In addition, he has published more than 75 peer reviewed publications, and has written or edited more than nine text books, including Hepatobiliary Surgery (with Dr. Leslie Blumgart) and The Surgical Intern Survival Guide that is used by interns and residents nationwide and is in its eleventh printing.

Vivek Maheshswari, MDVivek Maheshswari, MD
Co-Director, Gastrointestinal Cancer Center of Excellence at Saint Barnabas

As a surgical oncologist Dr. Maheshswari specializes in gastrointestinal cancers and offers unique expertise and research interest in heated peritoneal perfusion through his experiences at the University of Pittsburgh Cancer Center. He is board certified in General Surgery and will provide state-of-the-art surgical services to patients with GI cancers, endocrine tumors and melanomas.

Prior to joining Saint Barnabas in 2006, Dr. Maheshwari was a full-time surgical oncology faculty member at Beth Israel Medical Center in New York and Assistant Professor at the Albert Einstein College of Medicine. He is a Fellow of the American College of Surgeons as well as a member of the Society of Surgical Oncology, American Society of Clinical Oncology and Society of Surgery for the Alimentary Tract where he is involved with a variety of local and national cooperative trials.

Dr. Maheshwari received his medical and Master of Surgery degrees from the University of Delhi in India and completed his general surgery residency at Beth Israel Medical Center. He went on to complete his Society of Surgical Oncology Fellowship at the University of Pittsburgh. He is actively involved in a variety of clinical research projects and has special interests in cutaneous oncology, endocrine tumors, tumor debulking and intraperitoneal hyperthermic chemotherapy.

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