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Gary Warren Falk, M.D., M.S.

Professor of Medicine at the Hospital of the University of Pennsylvania
Adjunct Faculty, Center for Clinical Epidemiology and Biostatistics
Clinical Co-Director, Joint Center for Digestive, Liver and Pancreatic Medicine, University of Pennsylvania, School of Medicine and the Children's Hospital of Philadelphia
Co-Director, GI Motility/Physiology Program, Hospital of the University of Pennsylvania, and Perelman Center for Advanced Medicine
Co-director, Joint Penn CHOP Center for Digestive, Liver and Pancreatic Disorders.
Co-director, GI Physiology Laboratory. Hospital of the University of Pennsylvania.
Member, Abramson Comprehensive Cancer Center. Cancer Control Research Program. Hospital of the University of Pennsylvania.
University Associate Staff. , Children's Hospitalof Philadlephia
Department: Medicine

Contact information
Division of Gastroenterology
Department of Internal Medicine
Hospital of the University of Pennsylvania
7th Floor South Pavilion
Perelman Center for Advanced Medicine
3400 Civic Center Drive
Philadelphia, PA 19104
Office: 215-615-4951
Fax: 215-349-5915
Education:
HS
Stuyvesant High School, New York, New York , 1972.
B.S. (Biology-Geology. Cum laude with high distinction)
University of Rochester, Rochester, NY, 1976.
M.D.
University of Rochester School of Medicine and Dentistry, Rochester, NY, 1980.
M.S. (Clinical Research)
Case Western Reserve University School of Medicine Clinical Scholars Program, Cleveland, Ohio, 2006.
Post-Graduate Training
Intern in Internal Medicine, George Washington University Medical Center, Washington, DC, 1980-1981.
Resident in Internal Medicine, George Washington University Medical Center, Washington, DC, 1981-1983.
Clinical Fellow in Gastroenterology, University of Michigan Medical Center, Ann Arbor, MI, 1983-1984.
Research Fellow in Gastroenterology. Studied immunocytochemistry of CCK processing intermediates in the brain. Dr. Stanley Watson, preceptor. Studied interaction of secretin and gastrointestinal motility. Dr Chung Owyang, preceptor., University of Michigan Medical Center, Ann Arbor, MI, 1984-1986.
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Description of Clinical Expertise

Esophageal diseases including Barrett's esophagus, eosinophilic esophagitis, GERD diagnosis and treatment, achalasia, motility abnormalities, extraesophageal GERD, dysphagia, esophageal cancer

Description of Other Expertise

Consultative gastroenterology
Upper endosccopy
Endoscopic dilation
Endoscopic mucosal resection
Radiofrequency ablation
Pneumatic dilation
Colonoscopy
Polypectomy
High resolution manometry
BRAVO pH
Impedance pH
Hydrogen breath tests
Urea breath tests

Description of Research Expertise

Barrett's esophagus: chemoprevention, detection, diagnosis, cancer prevention, epidemiology, risk stratification, pathogenesis

Eosinophilic esophagitis: epidemiology, pediatric-adult transition, fibrosis, clinical trials, pathogenesis

Endoscopy: advanced imaging

Selected Publications

Thota Prashanthi N, Vennalaganti Prashanth, Vennelaganti Sreekar, Young Patrick, Gaddam Srinivas, Gupta Neil, Lieberman David, Sampliner Richard, Falk Gary W, Mathur Sharad, Kennedy Kevin, Cash Brooks D, Moawad Fouad, Bansal Ajay, Spaander Manon C, Bruno Marco J, Vargo John, Sharma Prateek: Low Risk of High-grade Dysplasia or Esophageal Adenocarcinoma Among Patients with Barrett's Esophagus Less Than 1 cm (Irregular Z Line) Within 5 Years of Index Endoscopy. Gastroenterology Dec 2016.

Dellon Evan S, Collins Margaret H, Bonis Peter A, Leung John, Capocelli Kelley E, Dohil Ranjan, Falk Gary W, Furuta Glenn T, Menard-Katcher Calies, Gupta Sandeep K, Hirano Ikuo, Hiremath Girish S, Kagalwalla Amir F, Wershil Barry K, Liacouras Chris A, Muir Amanda B, Mukkada Vincent A, Putnam Philip E, Schoepfer Alain M, Straumann Alex, Wo John M, Yang Guang-Yu, Rothenberg Marc E, Gonsalves Nirmala: Substantial Variability in Biopsy Practice Patterns Among Gastroenterologists for Suspected Eosinophilic Gastrointestinal Disorders. Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association 14(12): 1842-1844, Dec 2016.

Levy Jennifer L, Levine Marc S, Rubesin Stephen E, Falk Gary W, Metz David C, Dempsey Daniel T, Ginsberg Gregory G: Findings of Esophagography for 25 Patients After Peroral Endoscopic Myotomy for Achalasia. AJR. American journal of roentgenology 207(6): 1185-1193, Dec 2016.

Critchley-Thorne Rebecca J, Davison Jon M, Prichard Jeffrey W, Reese Lia M, Zhang Yi, Repa Kathleen A, Li Jinhong, Diehl David L, Jhala Nirag C, Ginsberg Gregory, DeMarshall Maureen, Foxwell Tyler, Jobe Blair A, Zaidi Ali H, Duits Lucas C, Bergman Jacques J G H M, Rustgi Anil K, Falk Gary W: A Tissue Systems Pathology Test Detects Abnormalities Associated with Prevalent High Grade Dysplasia and Esophageal Cancer in Barrett's Esophagus. Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology Oct 2016.

Leiman D A, Riff B P, Morgan S, Metz D C, Falk G W, French B, Umscheid C A, Lewis J D: Alginate therapy is effective treatment for gastroesophageal reflux disease symptoms: a systematic review and meta-analysis. Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus Sep 2016.

Muir Amanda B, Dods Kara, Henry Steven J, Benitez Alain J, Lee Dale, Whelan Kelly A, DeMarshall Maureen, Hammer Daniel A, Falk Gary, Wells Rebecca G, Spergel Jonathan, Nakagawa Hiroshi, Wang Mei-Lun: Eosinophilic Esophagitis-Associated Chemical and Mechanical Microenvironment Shapes Esophageal Fibroblast Behavior. Journal of pediatric gastroenterology and nutrition 63(2): 200-9, Aug 2016.

Sun Xiangqing, Elston Robert, Falk Gary W, Grady William M, Faulx Ashley, Mittal Sumeet K, Canto Marcia I, Shaheen Nicholas J, Wang Jean S, Iyer Prasad G, Abrams Julian A, Willis Joseph E, Guda Kishore, Markowitz Sanford, Barnholtz-Sloan Jill S, Chandar Apoorva, Brock Wendy, Chak Amitabh: Linkage and related analyses of Barrett's esophagus and its associated adenocarcinomas. Molecular genetics & genomic medicine 4(4): 407-19, Jul 2016.

Critchley-Thorne Rebecca J, Duits Lucas C, Prichard Jeffrey W, Davison Jon M, Jobe Blair A, Campbell Bruce B, Zhang Yi, Repa Kathleen A, Reese Lia M, Li Jinhong, Diehl David L, Jhala Nirag C, Ginsberg Gregory, DeMarshall Maureen, Foxwell Tyler, Zaidi Ali H, Lansing Taylor D, Rustgi Anil K, Bergman Jacques J G H M, Falk Gary W: A Tissue Systems Pathology Assay for High-Risk Barrett's Esophagus. Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology 25(6): 958-68, Jun 2016.

Whelan Kelly A, Merves Jamie F, Giroux Veronique, Tanaka Koji, Guo Andy, Chandramouleeswaran Prasanna M, Benitez Alain J, Dods Kara, Que Jianwen, Masterson Joanne C, Fernando Shahan D, Godwin Bridget C, Klein-Szanto Andres J, Chikwava Kudakwashe, Ruchelli Eduardo D, Hamilton Kathryn E, Muir Amanda B, Wang Mei-Lun, Furuta Glenn T, Falk Gary W, Spergel Jonathan M, Nakagawa Hiroshi: Autophagy mediates epithelial cytoprotection in eosinophilic oesophagitis. Gut Feb 2016.

Kong Jianping, Sai Hong, Crissey Mary Ann S, Jhala Nirag, Falk Gary W, Ginsberg Gregory G, Abrams Julian A, Nakagawa Hiroshi, Wang Kenneth, Rustgi Anil K, Wang Timothy C, Lynch John P: Immature myeloid progenitors promote disease progression in a mouse model of Barrett's-like metaplasia. Oncotarget 6(32): 32980-3005, Oct 2015.

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Last updated: 12/27/2016
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