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Gastroenterology Fellowship

The Gastroenterology Fellowship at The Brooklyn Hospital Center (TBHC) is a three-year, fully accredited program by the United States Accreditation Council for Graduate Medical Education (ACGME). Our program consists of nine fellows and several board-certified faculty. This is one of Brooklyn’s oldest fully ACGME-accredited gastroenterology (GI) fellowship programs. Our program received its first accreditation on July 1, 1987, and we marked our 30th anniversary in July 2017.

The main goal of the program is to train highly qualified, competent and caring gastroenterologists. This program provides excellent teaching in all clinical and endoscopic aspects of gastroenterology, hepatology and advanced endoscopy.

The fellows have regular didactic core lectures, conferences in GI pathology, GI radiology, journal clubs, clinical case conferences, research conferences, quality improvement meetings, morbidity and mortality conferences, board review, clinical guideline review, and GI grand rounds. The faculty and fellows are actively involved in multiple clinical research projects and regularly publish scholarly work in peer-reviewed journals. The fellows also routinely attend and present at national and international meetings including the American College of Gastroenterology, Digestive Disease Week, New York Society of Gastrointestinal Endoscopy and the American Association for the Study of Liver Diseases.

The Brooklyn Hospital Center is the sponsoring hospital of the Gastroenterology Fellowship Program and has academic affiliation with Mount Sinai Medical Center. Other participating hospitals include St. Barnabas Hospital in the Bronx, NYC Health + Hospital/Queens in Queens and Mount Sinai Medical Center in Manhattan. As a result, the fellows are exposed to a diverse patient population and have the opportunity to work with key clinical faculty from the four participating institutions. The program offers excellent endoscopic experience with ERCP/EUS training with multiple interventional attendings at all sites in addition to training in general gastroenterology, hepatology and nutrition. Our fellowship program aims to train fellows to become outstanding clinical and academic gastroenterologists.


Madhavi Reddy, MD, FACG

Madhavi Reddy, MD, FACG
Chief, Division of Gastroenterology; Program Director, Gastroenterology and Hepatology Fellowship Program; Director of Endoscopy

Denzil Etienne, MD

Denzil Etienne, MD
Associate Program Director of Gastroenterology Fellowship Program

Derrick Cheung, MD

Derrick Cheung, MD
Director of Interventional Endoscopy

Eduardo J. Quintero, MD

Eduardo J. Quintero, MD
Interventional Gastroenterologist

Learn more about TBHC’s gastroenterology services and faculty.

Gastroenterology Team and Fellows

Gastroenterology Fellowship

Current Fellows

Third-Year Fellows
Carmine Catalono, MD, Chief Fellow
Andrew Ofosu, MD, MPH, FACP, Advanced Endoscopy Fellowship, Stanford University School of Medicine, 2020-2021
Vahe Shahnazarian, MD, MPH
Febin John, MD

Second-Year Fellows
Ali Aamar, MD
Evangelos Tsipotis, MD
Khalil Aloreidi, MD
Mohamed Barakat, MD

First-Year Fellow
Manan Jhaveri,, MD

Former Fellows

Emmanuel Ofori, MD, Advanced Endoscopy Fellowship, University of Maryland

Denzil Etienne, MD: Hospital employment, The Brooklyn Hospital Center, New York
Amit Mori, MD: Private practice, Texas
Lin Sandar, MD: Hospital employment, California
Tagore Sunkara, MD: Hospital employment, Iowa

Kinesh Changela, MD: Advanced Endoscopy Fellowship, Moffitt Cancer Center, Florida
Sofia Nigar, MD: Private practice, New York
Russell Parvin, MD: Hospital employment, Connecticut
Juan Tejada, MD: Advanced Endoscopy Fellowship, Albany Medical College, New York

Mel A. Ona, MD, MS, MPH, MA: Advanced Endoscopy Fellowship, Cedars-Sinai Medical Center, California

Sridevi Atluri, MD: Advanced Endoscopy Fellowship, University of Texas at San Antonio, Texas
Taruna Bhatia, MD: Private practice, New Jersey
Hernan Lopez-Mora, MD: Private practice, Texas
Harris Papafragakis, MD: Advanced Endoscopy Fellowship, MD Anderson, Texas

How to Apply

We participate in the Subspecialty Match Program, sponsored by the National Resident Matching Program (NMRP) Specialty Matching Services (SMS). All candidates must, therefore, register through the NRMP Specialty Matching Services. We do not accept applications outside ERAS/NRMP.

Applicants should have completed three years of training in Internal Medicine in the United States by the time they enter the fellowship-training program. They must be board-certified or board-eligible in Internal Medicine. To apply to the program, visit the ERAS website. The application requires the following information:

  • Official medical school transcripts
  • Official test transcripts for all applicable examinations (USMLE, LMCC, COMLEX, NBOME, FMGEMS, FLEX or NBME)
  • A dean's letter and three other letters of recommendation
  • A curriculum vitae
  • A personal statement
  • A valid ECFMG certificate (if you graduated from medical school outside of the United States)

After review of your completed application, you may be asked to visit TBHC to meet with the program director and faculty.

Please feel free to contact our Fellowship Program Coordinator, Julie Quiñonez, if you have any further questions.


Fellowship Coordinator
Julie C. Quinonez
P: 718-250-6952
F: 718-250-8120

Program Director
Madhavi Reddy, MD
P: 718-250-6952

Associate Program Director
Denzil Etienne, MD
P: 718-250-8867

Director of Interventional Endoscopy
Derrick Cheung, MD
P: 718-250-8867