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 his duties as a surgical oncologist, 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.
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Co-Director, Gastrointestinal Cancer Center of Excellence at Saint
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
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Mark E. Gilder, MD
Dr. Mark Gilder received his BS from Emory University in 1983. In 1987, he obtained his medical degree from New York Medical College. Dr. Gilder completed his surgical internship and residency at North Shore University Hospital in 1992. In 1993, he completed his fellowship in Colon & Rectal Surgery at Saint Francis Medical Center affiliated with University of Connecticut. He joined Associates in Colon & Rectal Diseases in June 1993.
Dr. Gilder is board certified in General Surgery and Colon & Rectal Surgery. He is a member of numerous national societies in General Surgery and Colon & Rectal Surgery. He is past president of the New Jersey Colon & Rectal Society. He is a Fellow of the American College of Surgeons along with the American Society of Colon & Rectal Surgeons. He has also served as Chairman of the Division of Colon & Rectal Surgery at Saint Barnabas Medical Center.
Dr. Gilder has served as a consultant for surgical instrument manufacturers. He is highly skilled in endoscopy and has performed thousands of colonoscopies. His expertise is minimally invasive intestinal surgery, therapeutic high-risk colonoscopy, endorectal ultrasound, and anorectal surgery. He remains an active clinical instructor at Saint Barnabas Medical Center.
Dr. Gilder’s honors include being named to “Castle Connolly Top Doctors New York Metro Area” in 2007 and “New York Magazine Best Doctors” in 2008. Recently, he was named to “Inside Jersey” magazine 2009 Top Doctors Issue.
His interests include spending time with his wife and two daughters along with golf and skiing.
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Delia Radovich, MD
Dr. Radovich received her bachelor’s degree from New York University and completed post-baccalaureate studies at Columbia University. She received her medical degree from Brown University School of Medicine and completed internship and Internal Medicine residency at Yale New-Haven Hospital.
Following her training, she was Board Certified in Internal Medicine. She subsequently completed a combined Hematology and Oncology fellowship at Memorial Sloan Kettering Cancer Center. She has written a surgical text chapter and several scientific abstracts on GI cancers, and continues to participate in clinical research. She joined The Cancer Centers of Saint Barnabas in 2004, where she is an attending physician, board certified in Medical Oncology.
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Lawrence S. Rosenthal, MD
Dr. Rosenthal is a board certified gastroenterologist who has special interest in colon cancer screening, gastrointestinal cancer, endoscopy, including endoscopic ultrasound (EUS) and ERCP, as well as pancreatic and biliary diseases. He has numerous publications on a variety of topics including colon cancer screening, EUS, interventional endoscopy, and pancreatic cancer, and has presented his research at many national meetings. He conducts ongoing research in endoscopic oncology and pancreatic tumors. He holds a grant from the Nussbaum Foundation of Saint Barnabas to support his efforts.
Dr. Rosenthal currently serves as the President of the New Jersey Gastroenterology and Endoscopy Society. He is a past honoree of the American Cancer Society’s Diamond Ball for his commitment to serving his patients in the fight against cancer.
Dr. Rosenthal graduated from Vassar College with honors and received his medical degree from the SUNY Downstate College of Medicine. He completed his Internal Medicine residency at the Albert Einstein College of Medicine-Montefiore Medical Center. After his Gastroenterology and Hepatology training, he completed an additional fellowship in Advanced Endoscopy at the Yale-New Haven Hospital. He has also served on the faculty of the Yale University School of Medicine.
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Raquel T. Wagman, MD
Dr. Raquel T. Wagman joined the Department of Radiation Oncology at Saint Barnabas Medical Center in July 2004. She came to Saint Barnabas from Memorial Sloan-Kettering Cancer Center where she completed her residency in radiation oncology and then was an attending in the Department of Radiation Oncology for four years.
Prior to that, she completed her internship and received both her medical and undergraduate degrees from the University of Michigan. She is the author of more than 40 publications, abstracts, conference proceedings and book chapters and review articles. Over the past several years, Dr. Wagman has made four oral presentations and one poster presentation at the American Society of Therapeutic Radiology and Oncology (ASTRO) Annual Meeting. She takes a special interest in the treatment and research of breast cancer, gastrointestinal cancers, head and neck, and pediatric cancers.
Dr. Wagman is board certified in radiation oncology. She has received numerous awards, including the Radiological Society of North America’s Resident/Fellow Research Award, the University of Michigan’s Frank E. Robbins Award for Scholarship and Professional Development, and has been nominated for her 2nd term as Cancer Liaison Physician to the Commission on Cancer for Saint Barnabas Medical Center.
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