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 - Northwestern Memorial Hospital - Chicago


Meet our Team

John A. Martin, MD

John A. Martin, MD, is Director of Endoscopy at Northwestern Memorial, Dr. Martin's clinical, research, and medical education efforts and interests are focused in:
  • Endoscopic retrograde cholangiopancreatography (ERCP)
  • Advanced interventional endoscopy
  • Surgical endoscopy
  • Hepato-biliary disorders
  • Pancreatico-biliary diseases
  • Transplantation surgery
  • Natural-orifice transluminal endoscopic surgery (NOTES)
Dr. Martin is also interested in the development of novel endoscopic devices for advanced therapeutic endoscopy, as well as interdisciplinary investigation of new advanced multimodal molecular imaging technologies in the laboratories of Drs. Khashayarsha Khazaie and Elias Gounaris.
Dr. Martin is also involved in interdisciplinary study, application, and validation of new simulation models and devices for use in endoscopic training and education.
With Nathaniel Soper, MD, and Eric Hungness, MD, in the Department of Surgery, he is co-founder of the Northwestern NOTES Investigation Group commenced in 2006. In 2007, he initiated the third-tier, fourth year fellowship program in Advanced Therapeutic Endoscopy at Northwestern.

To make an appointment with Dr. Martin

Nurse: Linda Thompson, RN

Sri Komanduri, MD, MS

Sri Komanduri, MD, MS, is an interventional endoscopist who serves as a part of the multidisciplinary team in gastrointestinal oncology which provides comprehensive care and state of the art technology for patients.
Dr. Komanduri has a focus on staging and endoscopic treatment of gastrointestinal cancers, leading the initiative in endoscopic therapy and clinical research in Barrett's Esophagus, and management of diseases of the pancreas and bile ducts.
He has extensive endoscopic experience with Endoscopic Ultrasound in cancer diagnosis and staging (EUS), Endoscopic Retrograde Cholangiopancreatography for benign and malignant disease (ERCP), Endoscopic Mucosal Resection (removal of early tumors in the GI tract), and Endoscopic treatment of Barrett’s Esophagus.
Dr. Komanduri's cilnical interests include:
  • Endoscopic Ultrasound staging of GI, pancreas, and bile duct cancers
  • ERCP for benign and malignant biliary and pancreatic disease including choledochoscopy
  • Endoscopic minimally invasive resection of gastrointestinal tumors and colon polyps
  • Endoscopic treatment of Barrett’s Esophagus
  • Management of Acute and Chronic Pancreatitis
Dr. Komanduri's reseach interests include:
  • Multidisciplinary approach to GI cancers
  • ERCP for evaluation of malignant and benign strictures
  • Outcomes of endoscopic therapy for Barrett’s Esophagus
  • Cost-effectiveness of strategies for management of pancreatitis
  • Investigation of novel endoscopic techniques
He serves as a panel member for the National Comprehensive Cancer Network (NCCN) for Pancreatic Cancer which publishes national guidelines for the management of these tumors.

To make an appointment with Dr. Komanduri

Nurse: Lindsay Van Pelt, RN

Rajesh N. Keswani, MD

Rajesh N. Keswani, MD, is an interventional gastroenterologist who focuses on minimally invasive endoscopic procedures. His clinical interests include:
  • Use of endoscopic ultrasound (EUS) in tumor diagnosis and stagingPalliation of gastrointestinal malignancy
  • Pancreaticobiliary endoscopy (ERCP)
  • Endoscopic mucosal resection for early gastrointestinal malignancy
  • Small bowel endoscopy including single balloon enteroscopy
He serves as a panel member for the National Comprehensive Cancer Network (gastric and esophageal cancer committee) which publishes national guidelines for the management of these tumors.
Dr. Keswani’s research interests focus on clinical outcomes of interventional endoscopic procedures including EUS, ERCP, and stent placement and the use of new endoscopic modalities for complex or difficult colonoscopy.

To make an appointment with Dr. Keswani

Nurse: Maura Barron, RN

Contact Us

Interventional Endoscopy Program

675 N. St. Clair, Galter 17-250
Chicago, IL 60611
Ligia Arndt, Coordinator

Last UpdateFebruary 15, 2013


For more information or to make an appointment please call 312-695-5620.