John Charles Byrn MD
Assistant Professor, Surgery, University of Iowa College of Medicine
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1500 E Medical Center DrAnn Arbor, MI 48109
Phone+1 734-936-4000
Fax+1 319-356-4609
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Education & Training
Cleveland Clinic FoundationResidency, Colon and Rectal Surgery, 2008 - 2009
Icahn School of Medicine at Mount SinaiResidency, Surgery, 2002 - 2008
University of Illinois College of MedicineClass of 2002
Certifications & Licensure
MI State Medical License 2015 - 2028
IA State Medical License 2009 - 2016
NY State Medical License 2004 - 2010
OH State Medical License 2008 - 2009
American Board of Colon and Rectal Surgery Colon & Rectal Surgery
American Board of Surgery Surgery
Awards, Honors, & Recognition
- Fellow (FACS) American College of Surgeons
Publications & Presentations
PubMed
- Surgical Coaching for Performance Optimization: Perceptual-Cognitive Expertise Displayed During Surgical Peer Coaching Intervention.Sarah E Bradley, Mary E Byrnes, Evan Monge, Jordan Boyce-Suwanabol, Pasithorn A Suwanabol
Journal of Surgical Education. 2026-05-01 - 1 citationsGroup-Based Peer Feedback in Surgical Coaching.Lauren A Szczygiel, Mary E Byrnes, Pasithorn A Suwanabol, Justin B Dimick, John C Byrn
JAMA Surgery. 2026-02-01 - Rapid Induction of Remission With Upadacitinib Followed by Cytomegalovirus Colitis in a Hospitalized Patient With Crohn's Disease.Reid Herran, Samuel Wilcox, Gal Hodish, Asma Nusrat, Jiaqi Shi
ACG Case Reports Journal. 2026-01-01
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- Member
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