John David Horwhat MD FACG, FASGE

Advanced Endoscopic Interventional, Esophagus Disease, Gastrointestinal Cancer, Pancreas Disease

Chief, Division of Gastroenterology, Lancaster General Hospital

2112 Harrisburg PikeSte 202Lancaster, PA 17601
Phone+1 717-544-3500
Fax+1 717-544-3501

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Summary

John Horwhat, MD, is a gastroenterologist based in Lancaster, PA, with subspecialties in Advanced Endoscopic Interventional, Esophagus Disease, Gastrointestinal Cancer, and Pancreas Disease. His career is marked by a wide-ranging education and professional history that includes roles as the Assistant Chief and Fellowship Program Director at Walter Reed National Military Medical Center, and Fellowships in Gastroenterology at the National Capital Consortium and Advanced Endoscopy at Duke University Hospital. Dr. Horwhat has a wealth of experience in areas such as general gastroenterology, gastroesophageal reflux, irritable bowel syndrome, interventional gastroenterology, and biliary tract disease. He has contributed to clinical research and has multiple highly cited publications to his name. He has also participated in clinical trials and received the CMS Meaningful Use Stage 1 Certification from EpicCare Ambulatory EMR in 2013.

Education & Training

Duke University HospitalFellowship, Advanced Endoscopy, 2003 - 2004
National Capital ConsortiumFellowship, Gastroenterology, 1997 - 2000
Madigan Army Medical CenterResidency, Internal Medicine, 1992 - 1995
Lewis Katz School of Medicine at Temple UniversityClass of 1992

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Certifications & Licensure

PA State Medical License 1994 - 2026
MD State Medical License 2012 - 2014
NE State Medical License 2008 - 2014
ND State Medical License 2010 - 2011
NC State Medical License 2001 - 2008
American Board of Internal Medicine Gastroenterology

Awards, Honors, & Recognition

CMS Meaningful Use Stage 1 Certification EpicCare Ambulatory 2014 Certified EHR Suite, Epic Systems Corporation, 2014-2017
CMS Meaningful Use Stage 2 Certification Beacon Oncology 2014 Certified Module, Epic Systems Corporation, 2014-2017
CMS Meaningful Use Stage 1 Certification EpicCare Ambulatory - Core EMR, Epic Systems Corporation, 2014-2017

Clinical Trials

Endoesophageal Cryotherapy For Ablating Barrett's Esophagus and Early Stage Esophageal Cancer
UNKNOWN
PHASE4

Publications & Presentations

PubMed

19 citations
Clinical outcomes in patients with a diagnosis of "indefinite for dysplasia" in Barrett's esophagus: a multicenter cohort study.
Preetika Sinh, Rajeswari Anaparthy, Patrick E. Young, Srinivas Gaddam, Prashanthi N. Thota
Endoscopy. 2015-04-24
1 citations
Cryotherapy for treatment of radiation proctitis.
Fouad J. Moawad, John D. Horwhat
Gastrointestinal Endoscopy. 2014-02-01
6 citations
Endotherapy for and tailored approaches to treating GERD, and refractory GERD
G. Richard Locke, John D. Horwhat, Hiroshi Mashimo, Edoardo Savarino, Patrizia Zentilin
Annals of the New York Academy of Sciences. 2013-10-01