Department of Pediatrics - Gastroenterology/Nutrition Fellowship

Our Fellows

Current Fellows

Mariana Middelhof, MDSecond Year Fellow

Mariana Middelhof, M.D.

Mariana was born and raised in Curacao, Netherlands Antilles and moved to Puerto Rico when she was 18 to pursue undergraduate and medical training. She received her medical degree from San Juan Bautista School of Medicine in 2010 and completed her pediatric residency training at San Juan City Hospital in 2013.

While a resident, Mariana received several awards presented by faculty acknowledging her clinical excellence in outpatient care, pediatric intensive care, neonatal intensive care, and teaching. She received the Excellence in Academic and Clinical Skills Award for Continuity Clinics for three consecutive years. She was also the lead author of four case reports, one of which was presented nationally at the 2012 Society of Critical Care Medicine (SCCM) annual meeting and published as an abstract.

Mariana had three abstracts accepted for presentation at the 2014 NASPGHAN Annual Meeting and is looking forward to embarking on her career as an academic pediatric gastroenterologist, pursuing research in the area of hepatology and nutrition. Mariana enjoys reading, swimming and spending quality time with her family. She also likes volunteering and taking part in community service.

Dr. Walaa Elfar

First Year Fellow

Walaa Elfar, M.B.Ch.B.

Walaa was born in Egypt but grew up in Qatar, where her father worked as a fine arts instructor. She received her medical degree from the University of Cairo where she matriculated after being ranked fifth among over one hundred thousand applicants on the national entrance examinations. She completed her residency in pediatrics at The University of Rochester Medical Center Golisano Children's Hospital. 

During residency training, she initiated a quality assurance project to monitor the adherence to the American Academy of Pediatrics guidelines for cholesterol screening in children in the outpatient setting.  She was elected chief resident in Pediatrics at The Rochester General Hospital upon competing residency training.

Walaa loves teaching medical trainees and residents in small groups. During her chief resident year, she instituted a summer lecture series at RGH which focused on "Essential No-Miss Topics in Pediatrics".   She was also involved in setting up mock-codes in the outpatient clinics and the newborn nursery at RGH in addition to those already in place on the inpatient ward. She also joined her co-chief residents in an effort to improve the passing scores for the pediatric board examination by creating an 18-month noon conference curriculum based on the American Academy of Pediatrics guidelines. 

Her current areas of research interest include treatment of IBD and bridging the gap to international medicine focusing on availability of specialized care in the Arab World.

Outside of work, Walaa enjoys spending time with her family, traveling, and learning about foreign cultures. She is fluent in Arabic and its all dialects and is an expert Arabic calligraphist.

Krishna Kosuru

First Year Fellow

Krishnamraju Kosuru, M.B.B.S.

Krishna was born and raised in India and attended medical school at Rangaraya Medical College, India. He continued on to earn an MPH from Missouri State University and an MS in Biology from Wichita State University. Krishna completed his pediatric residency training at Michigan State University.

During his final year of residency, Krishna  presented his research on “Urinary biomarkers in necrotizing enterocolitis” at the DDW (Digestive Disease Week) annual meeting; he also received third prize for his poster on this topic at the 2014 Lansing Research Day at Michigan State University. Also while in residency, Krishna did an advocacy project on "Internet safety and children” which he presented at Grand Rounds. He also completed a quality improvement project to improve continuity of care in the residency clinic at Michigan State University.

Outside of medicine, Krishna is very interested in cars and closely follows all the reviews and latest launches. He also enjoys cooking and spending quality time with his family.

Recent Graduates

T. Matthew Shields, M.D.
Assistant Professor, Pediatric Gastroenterology/Nutrition
Director of Medical Student and Resident Education
University of Massachusetts Medical School, Worchester, MA

Vibha Sood, M.B.B.S.
Clinical Assistant Professor, Pediatric Gastroenterology/Nutrition
MedStar Georgetown University Hospital, Washington, DC

Prita H. Mohanty, M.D.
Assistant Professor, Pediatric Gastroenterology/Nutrition
University of Rochester Medical Center, Rochester, NY
Prita H.Mohanty, M.D.

Osama F. Almadhoun, M.D.
Assistant Professor, Pediatric Gastroenterology/Nutrition
University of Kansas Medical Center, Kansas City, KS

Megan E. Gabel, M.D.
Assistant Professor, Pediatric Gastroenterology/Nutrition
University of Rochester Medical Center, Rochester, NY
Megan E. Gabel, M.D.

Husam S. Mallah, M.D.
Pediatric Gastroenterologist
Lutheran Children's Hospital, Fort Wayne, IN

Wahaj M. Zaidi, M.D.
Pediatric Gastroenterologist
Memorial Children's Hospital, South Bend, IN

Cary M. Qualia, M.D.
Assistant Professor, Pediatric Gastroenterology/Nutrition
Albany Medical Center, Albany, NY

Juan Villalona, M.D.
Assistant Professor, Pediatric Gastroenterology/Nutrition and Surgery
Virginia Commonwealth University/Medical College of Virginia, Richmond, VA