Research Faculty
Greg M. Tiao, MD
Director, Division of General and Thoracic Surgery
greg.tiao@cchmc.org 
Alexander Bondoc, MD
Pediatric Surgeon, Division of Pediatric General and Thoracic Surgery
alex.bondoc@cchmc.org 
Rebeccah L. Brown, MD, FACS, FAAP
Associate Director, Trauma Services
rebeccah.brown@cchmc.org 
Anusua "Roshni" Dasgupta, MD, MPH
Pediatric Surgeon, Division of Pediatric General and Thoracic Surgery
roshni.dasgupta@cchmc.org 
Richard A. Falcone Jr., MD, MPH, MMM
Vice President, Perioperative Operations
richard.falcone@cchmc.org 
Jason S. Frischer, MD
Director, Colorectal Center
jason.frischer@cchmc.org 
Victor F. Garcia, MD, FACS, FAAP
Founding Director, Trauma Services
victor.garcia@cchmc.org 
Aaron P. Garrison, MD
Program Director, Pediatric Surgery Fellowship
aaron.garrison@cchmc.org 
Michael A. Helmrath, MD
Director, Center for Stem Cell & Organoid Medicine (CuSTOM)
michael.helmrath@cchmc.org 
Foong-Yen Lim, MD
Surgical Director, Fetal Care Center
foong.yen.lim@cchmc.org 
Maxime M. Mahe, PhD
, Adjunct Assistant Professor, UC Department of Surgery
maxime.mahe@cchmc.org 
Jonathan Merola, MD, PhD
Member, Division of Pediatric General and Thoracic Surgery
jonathan.merola@cchmc.org 
Jose L. Peiro, MD, PhD
Endoscopic Fetal Surgery Director, Fetal Care Center
jose.peiro@cchmc.org 
Todd A. Ponsky, MD
Director, Clinical Growth and Transformation
todd.ponsky@cchmc.org 
Nelson G. Rosen, MD
Associate Director, Colorectal Center
nelson.rosen@cchmc.org 
Soona Shin, PhD
Member, Division of Pediatric General and Thoracic Surgery
soona.shin@cchmc.org 
Nikolai Timchenko, PhD
Head of Liver Tumor Biology, Liver Tumor Program
nikolai.timchenko@cchmc.org 
Daniel von Allmen, MD
Surgeon-in-Chief; Lester W. Martin Chair of Pediatric Surgery
daniel.vonallmen@cchmc.org 
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