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Current Fellows

Saint Louis University's Division of Gastroenterology and Hepatology has an outstanding three-year fellowship program to train future gastroenterologists and hepatologists.

Our fellows have had a 100% pass rate when they take their boards. Learn more about fellows in SLU's Department of Gastroenterology and Hepatology below.

First Year
Headshot of Alejandro Nieto Dominguez

Alejandro Nieto Dominguez, M.D.

Medical school: Universidad Latina de Panama Facultad de Ciencias de la Salud Dr. William C. Gorgas
Residency: Cook County Health and Hospitals System

Headshot of Maya Mahmoud

Maya Mahmoud, M.D.

Medical school: American University of Beirut Medical Center
Residency: Saint Louis University School of Medicine

Headshot of Nazli Begum Ozurk

Nazli Begum Ozurk, M.D.

Medical school: Istanbul University
Residency: Corewell Health William Beaumont University Hospital

Headshot of Ahmun Zafar

Ahmun Zafar, D.O.

Medical school: Touro College of Osteopathic Medicine
Residency: Mount Sinai Morningside

Second Year
Headshot of Ameya Deshmukh

Ameya Deshmukh, D.O.

Medical school: Chicago College of Osteopathic Medicine
Residency: Saint Louis University

Headshot of Halim Bou

Halim Bou Daher, M.D.

Medical school: American University of Beirut Faculty of Medicine
Residency: Saint Louis University

Headshot of Erica Catherine Becker

Erica Catherine Becker, M.D.

Medical school: University of Oklahoma College of Medicine
Residency: UConn Internal Medicine  
Clinical Nutrition Fellowship: Cleveland Clinic 

Headshot of Spyridon Zouridis

Spyridon Zouridis, M.D.

Medical school: University of Athens School of Health Sciences
Residency: Albany Medical Center  
Clinical Research Fellowship: Saint Louis University 

Third Year
Headshot of Timothy Brotherton

Timothy Brotherton, M.D. 

Medical school: University of Missouri- Kansas City 
Residency: Saint Louis University 

Headshot of Christopher Nguyen, M.D.

Christopher Nguyen, D.O.

Medical school: University of North Texas Health Science Center
Residency: University of Texas Medical Branch

Headshot of Umer Farooq

Umer Farooq, M.D. 

Medical school: King Edward Medical University, Pakistan 
Residency: Loyola Medicine 

Headshot of Ali Khalifa

Ali Khalifa, M.D.

Medical school: Alexandria University, Egypt 
Residency: Rutgers Robert Wood Johnson

Clinical Research Fellow
Headshot of Ahmad B. Nasir

Ahmad B. Nasir, M.D.

Medical school: Aleppo University, Faculty of Medicine
Residency: The University of Oklahoma Health Sciences Center Oklahoma City, OK (Internal Medicine-Pediatrics Residency)