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Gastroenterology and Nutrition Fellowships

Current Fellows

 A fellow is a medical doctor who has completed medical school and a three-year pediatric residency program. They are qualified to practice as a general pediatrician, but have applied to and were selected for a three-year training program in a specialized branch of pediatric medicine - pediatric gastroenterology and nutrition.

group 2015

Pediatric Gastroenterology/Nutrition Division Fellows

Emilia Shin, M.D.  


  • Started fellowship 7/2013
  • Medical School: Catholic University Medical College, S. Korea
  • Residency: SUNY Downstate Medical Center
  • Research Interest: Hepatology, specifically genetic differences between mild and severe Type I autoimmune hepatitis in young patients


Melissa Weidner, M.D.  
  • Started fellowship 7/2013
  • Medical School: Univ. of Medicine & Dentistry of NJ/Robert Wood Johnson
  • Residency: Thomas Jefferson University/A.I. duPont Hospital for Children
  • Research Interest: Inflammatory Bowel Disease, specifically how organisms within the intestinal microbiome can affect the immune system 
Hassan Hamandi, M.D.
  • Started fellowship 7/2014
  • Medical School: University of Virginia School of Medicine
  • Residency: Case Western Reserve University, Rainbow Babies & Children’s Hospital, Cleveland, OH
  • Research Interest: Inflammatory Bowel Disease and the effect of probiotics and prebiotics in the inflammatory response in patients with colitis
Sina Ogholikhan, M.D.
  • Started fellowship 7/201
  • Medical School: American University of the Caribbean
  • Residency: University of Florida, Gainesville, FL
  • Research Interest:  Hepatology, specifically assessing T-cells in patients with Biliary Atresia
 Grace Felix, M.D.
  • Started fellowship 7/2015
  • Medical School: Univ. of Virginia School of Medicine, Charlottesville, VA
  • Residency: Johns Hopkins Hospital, Baltimore, MD
Steven Miller, M.D. 
  • Started fellowship 7/2015
  • Medical School: Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA
  • Residency: Johns Hopkins Hospital, Baltimore, MD