Lionel S. D'Souza, M.D., Named Chief of Endoscopy

The Department of Medicine is thrilled to announced that Lionel S. D'Souza, M.D., Assistant Professor of Medicine, has been named the new Chief of Endoscopy at Stony Brook University Hospital and Program Director, Advanced Endoscopy Fellowship Program, Division of Gastroenterology and Hepatology at the Renaissance School of Medicine.

Meet Dr. Lionel S. D'Souza

Dr. D'Souza completed his internal medicine and gastroenterology training at the Mount Sinai Beth Israel Hospital. He subsequently completed a fellowship in advanced endoscopy at Mount Sinai Beth Israel Hospital and the Mount Sinai Hospital and joined Stony Brook as full time faculty and Director of Endoscopic Surgery in 2017.

Dr. D'Souza is a member of the Advanced Diagnostic and Therapeutic Endoscopy team at Stony Brook University Hospital. His expertise includes treatment of various pancreatic and biliary tract diseases as well as pre-malignant and malignant tumors of the GI tract.  

Over his time here at Stony Brook, Dr. D’Souza has established a robust endosurgical program offering minimally invasive endoscopic techniques such as endoscopic submucosal dissection (ESD), peroral endoscopic myotomy (POEM) and endoscopic suturing with applications in the resection of cancerous and pre-cancerous lesions of the GI tract as well as in the management of achalasia, gastroparesis, obesity and gastroesophageal reflux disease (GERD).

What is the Advanced Endoscopy Fellowship Program?

The advanced endoscopy fellowship program at Stony Brook University Hospital was initiated in 2013. This unique program offers an additional year of training in interventional endoscopic techniques following a traditional 3-year gastroenterology fellowship.

As the major referral center in Suffolk County Long Island, rigorous and comprehensive training is offered in endoscopic retrograde cholangiopancreatography (ERCP) with cholangioscopy and pancreatoscopy, diagnostic and therapeutic endoscopic ultrasound (EUS), enteral stent placement, various techniques of mucosal ablation (e.g. radiofrequency ablation, cryotherapy), advanced endoscopic resection and exposure to surgical endoscopy. In total, over 2,000 advanced endoscopic procedures performed annually at Stony Brook. In addition, 4th year fellows in advanced endoscopy are encouraged to participate in one of several clinical endoscopic research studies during their training, as well as the teaching of basic endoscopic skills to general gastroenterology fellows.

Please join us in congratulating Dr. D'Souza on these two well-deserved accomplishments. We thank him for his outstanding contributions to our institution, and wish him good luck in his new roles.

Lionel D'Souza, MD