Research Investigators & Staff

Principle Investigator

Sean Moore, MD, MS
Associate Professor
Dr. Sean Moore is a physician-scientist with training in pediatrics, gastroenterology, global health, and cell biology. He joined the Department of Pediatrics at UVa in 2016 as Director of Research for the Division of Pediatric Gastroenterology, Hepatology, & Nutrition.



Lab Members

Ajay Kumar, PhD
Postdoctoral Fellow
Dr. Ajay Kumar is a scientist with training in enteric and parenteral nutrition, gastroenterology, immunology and microbiology. He joined the Moore lab in 2018. His research area is to understand the effects of nutritional factors and biological rhythms on host susceptibility to enteric pathogens.

Arabinda Mandal, PhD
Research Scientist
Dr. Arabinda Mandal is a research scientist with training in reproductive molecular biology, cellular biology and immunology. He joined the UVA Department of Surgery in 2018. His focus of research is to elucidate the crosstalk between the intestinal neurons and intestinal organoids to better understand intestinal failures, inflammatory bowel disease, and short bowel syndromes.

Daniel Levin, MD
Assistant Professor
Dr. Daniel Levin is a surgeon-scientist with training in general surgery, pediatric general and non-cardiac thoracic surgery, cell-biology and tissue engineering.  He joined the Department of Surgery at UVA in 2017 as an Assistant Professor in Surgery.  His research focus is on intestinal stem cell biology and the creation of tissue engineered intestine for the treatment of pediatric short bowel syndrome and other gastrointestinal disorders.

David T. Bollick, MS
Laboratory and Research Manager
David earned his Bachelor’s and Master’s Degrees in Biology from James Madison University.  He started working at UVA in 1999 and brings 20 years of experience in diabetes, vascular biology, and enteric infection research to the lab.  David loves fishing/boating/swimming out at Lake Monticello with his two daughters and six dogs.


Gabriel Hanson, PhD
Gabriel is a second-year Ph.D. student in Biomedical Engineering at the University of Virginia who earned his Bachelor’s Degree in Applied Physics from Saint John’s University in Minnesota. He is interested in applying his physics background to topics in biology and medicine, particularly those focused on circadian rhythmicity and the interactions between microbes and the hosts that they colonize, as well as on other global health-focused projects. Gabriel is an outdoor enthusiast who in his free time enjoys hiking, camping, and fly fishing in the mountains surrounding Charlottesville.

Gregory Medlock, MD
Research Associate
Dr. Greg Medlock received his PhD in Biomedical Engineering from the University of Virginia in 2019 and his BS in Bioengineering from the University of Washington in 2014. Greg’s research focuses on the application of computational modeling and machine learning to understand and manipulate host-microbe and microbe-microbe interactions.

Jibraan Fawad, MD
Lab and Research Technician
Dr. Jibraan Fawad recently completed his medical education from Aga Khan University. He has research interests related to global health and gastrointestinal disorders and hopes to understand causes of malnutrition and stunting in children. Jibraan enjoys the outdoors and loves to bicycle and play soccer, as well as play and listen to music

Lubaina Ehsan, MBBS
Research Assistant
Dr. Ehsan graduated from Aga Khan University, Medical College, in December 2018. Her research work focuses computational modelling of the gut in order to study enteropathies. She has a background in statistics (SPSS, R) and multi-institutional research collaborations involving medical imaging and genetic testing. Lubaina is an aspiring pediatrician who is a basketball player, medical illustrator and graphic designer. She’s always on the lookout for creative projects. ​

Rachel Smith, BS
Lab Technician



Sandra Oliphant, RN, BSN, CCRC
Senior Clinical Research Coordinator
Sandra earned her BSN in Nursing from Jacksonville University in Jacksonville, FL. As a certified clinical research coordinator and registered nurse, Sandra brings 17 years of clinical research experience in oncology and gastroenterology to the Moore Lab. In her spare time, she enjoys spending time with her family and 2 Labrador retrievers, reading, and creating jewelry.

Wendy Cline
Administrative Assistant/Fellowship Coordinator
Prior to her rich 13 year history in Pediatrics, Wendy is extremely honored to have already served 30 years at UVA, during which time she has flourished and had a positive impact.  Wendy is a Virginia native; she was actually born at UVA Hospital and feels this is a sign she is meant to be here!  Wendy is happily married to Tim(retired), and enjoys quality time with him in rural New Canton.

Sana Syed, MD, MS
Assistant Professor

Dr. Sana Syed is a Global Health Scientist with a background in pediatrics, gastroenterology & nutrition and global health/epidemiology.  She is on faculty at the University of Virginia in the Center for Global Health with an adjunct faculty appointment at the Aga Khan University, Department of Pediatrics and Child Health, Karachi, Pakistan with the overarching goal to study small intestinal structure and function in children who experience growth and vaccine failure in low- and middle-income countries around the world.