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Office
1526 N Edgemont St
Fl 7
Los Angeles, CA 90027Phone+1 323-819-2651Fax+1 866-455-3867
Education & Training
Kaiser Permanente Southern California (Los Angeles)Fellowship, Gastroenterology, 2020- Kaiser Permanente Southern California (Los Angeles)Residency, Gastroenterology, 2020
Keck School of Medicine of the University of Southern CaliforniaClass of 2014
Certifications & Licensure
CA State Medical License 2015 - 2026- American Board of Internal Medicine Internal Medicine
- American Board of Internal Medicine Gastroenterology
Publications & Presentations
PubMed
- 12 citationsImpact of direct-acting oral anticoagulants and warfarin on postendoscopic GI bleeding and thromboembolic events in patients undergoing elective endoscopy.Andy Tien, Karl Kwok, Elizabeth Dong, Bechien U. Wu, Joanie Chung
Gastrointestinal Endoscopy. 2020-08-01 - 21 citationsEndoscopic ultrasound-guided transmural gallbladder drainage in malignant obstruction using a novel lumen-apposing stent: a case series (with video)Jonathan I. Chang, Elizabeth Dong, Karl Kwok
Endoscopy International Open. 2019-05-01 - 54 citationsCachexia, and not obesity, prior to pancreatic cancer diagnosis worsens survival and is negated by chemotherapyAndrew Eugene Hendifar, Jonathan I. Chang, Brian Z. Huang, Richard Tuli, Bechien U. Wu
Journal of Gastrointestinal Oncology. 2018-02-01
Journal Articles
- An Inverse Latitudinal Gradient in Speciation Rate for Marine FishesJonathan Chang, MD, Nature
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