William Pequignot Welch, MD

  • Assistant Professor of Pediatrics

Administrative Assistant: Melissa White

Welch is an Assistant Professor of Pediatrics in the Division of Neurology and Child Development Unit, Director of Epilepsy Neurostimulation, and Associate Director of the Epilepsy Surgery Program at UPMC Children's Hospital of Pittsburgh. In his clinical practice, he specializes in electroencephalography and the treatment of pediatric epilepsy. His research interests include pediatric epilepsy, epilepsy surgery, neurostimulation, and epilepsy genetics. Welch received his Bachelor of Arts, Bachelor of Science, and Doctor of Medicine from the University of Oklahoma. He completed Child Neurology residency Epilepsy Fellowship at UPMC Children's Hospital of Pittsburgh.

Professional and Scientific Society Memberships

  • International League Against Epilepsy, 2018-Present
  • Child Neurology Society, 2017-Present
  • American Epilepsy Society, 2015-Present
  • American Academy of Neurology, 2015-Present

Education & Training

  • BS, Zoology, University of Oklahoma, 2008
  • BA, English Literary and Cultural Studies, University of Oklahoma, 2008
  • MD, University of Oklahoma, 2013
  • Residency in Pediatrics, UPMC Children's Hospital of Pittsburgh, 2013-2015
  • Residency in Child Neurology, UPMC Children's Hospital of Pittsburgh, 2015-2018
  • Fellowship in Epilepsy, UPMC Department of Neurology, 2018-2019

Selected Publications

Bohm RA, Welch WP, Goodnight LK, Cox LW, Henry LG, Gunter TC, Bao H, Zhang B. A genetic mosaic approach for neural circuit mapping in Drosophila. Proceedings of the National Academy of Sciences. 2010 Sept 14;107(37):16378-83. PubMed PMID: 20810922

Fore TR, Ojwang AA, Warner ML, Peng X, Bohm RA, Welch WP, Goodnight, LK, Bao H, Zhang B. Mapping and application of enhancer-trap flippase expression in larval and adult Drosophila CNS. J Vis Exp. 2011 Jun 3;(52):2649. PubMed PMID: 21673643

Huang P, Sahai-Hernandez P, Bohm R, Welch WP, Zhang B, Nystul T. Enhancer-trap flippase lines for clonal analysis in the Drosophila ovary. G3 (Bethesda). 2014 Sept; 4(9):1693-99. PubMed PMID: 25024257

Smith BN, Ghazanfari AM, Bohm RA, Welch WP, Zhang B, Masly JP. A flippase-mediated GAL80/GAL4 intersectional resource for dissecting appendage development in Drosophila. G3 (Bethesda). 2015 Aug 15;5(10):2105-12. PubMed PMID: 26276385

Gedela S, Sitwat B, Welch WP, Krafty RT, Sogawa Y. The Effect of Vagus Nerve Stimulator in Controlling Status Epilepticus in Children. Seizure-Eur J Epilep. 2018 Jan 17; 55:66-69. PubMed PMID: 29414137

Welch WP, Sitwat B, Sogawa Y. The Use of Vagus Nerve Stimulator on Primary Generalized Epilepsy. J Child Neurol. 2018 Jun; 33(7):449-52. PubMed PMID: 29651891

Amorin-Leite R, Remick M, Welch WP, Abel TJ. History of the Network Approach in Epilepsy Surgery. Neurosurg Clin. 2020 July;31(3):301-8.


Academic and Research Interests

  • Epilepsy
  • Epilepsy Surgery
  • Neurostimulation 
  • Epilepsy Genetics