RonaldJ.HapkeMD

Gastroenterology • Hillsboro, OR

Physician

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Office
333 SE 7th Ave
Ste 5200
Hillsboro, OR 97123
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Education & Training

Oregon Health & Science UniversityFellowship, Gastroenterology, 1995 - 1998
Case Western Reserve University/University Hospitals Cleveland Medical CenterResidency, Internal Medicine, 1992 - 1995
University of Chicago Division of the Biological Sciences The Pritzker School of MedicineClass of 1992

Certifications & Licensure

OR State Medical License 1995 - 2025
OH State Medical License 1993 - 1998
American Board of Internal Medicine Gastroenterology

Awards, Honors, & Recognition

CMS Meaningful Use Stage 1 Certification Intergy EHR, Vitera Healthcare Solutions, LLC, 2013

Publications & Presentations

PubMed

156 citations
Houston Consensus Conference on Testing for Helicobacter pylori Infection in the United States
Hashem B. El-Serag, John Y. Kao, Fasiha Kanwal, Mark A. Gilger, Frank LoVecchio, Steven F. Moss, Sheila E. Crowe, Adam B. Elfant, Thomas Haas, Ronald J Hapke, David Y....> ;Clinical Gastroenterology and Hepatology. 2018 Mar 17
27 citations
Changing compliance to the American College of Gastroenterology guidelines for the management of variceal hemorrhage: a regional survey.
Atif Zaman, Ronald Hapke, Kenneth Flora, Hugo R. Rosen, Kent G. Benner> ;The American Journal of Gastroenterology. 2004 Apr 1
112 citations
Factors predicting the presence of esophageal or gastric varices in patients with advanced liver disease
Atif Zaman, Ronald Hapke, Kenneth Flora, Hugo R. Rosen, Kent G. Benner> ;The American Journal of Gastroenterology. 1999 Nov 1
71 citations
Prevalence of upper and lower gastrointestinal tract findings in liver transplant candidates undergoing screening endoscopic evaluation.
Atif Zaman, Ronald Hapke, Kenneth Flora, Hugo R. Rosen, Kent G. Benner> ;The American Journal of Gastroenterology. 1999 Apr 1
120 citations
A randomized trial of peroral versus transnasal unsedated endoscopy using an ultrathin videoendoscope.
Atif Zaman, Martin Hahn, Ronald Hapke, Kandice L. Knigge, M. Brian Fennerty, Ronald M. Katon> ;Gastrointestinal Endoscopy. 1999 Mar 1
67 citations
Unsedated Peroral Endoscopy With a Video Ultrathin Endoscope: Patient Acceptance, Tolerance, and Diagnostic Accuracy
Atif Zaman, Ronald Hapke, Geronimo Sahagun, Ronald M. Katon> ;The American Journal of Gastroenterology. 1998 Aug 1
38 citations
Factors associated with the use of flexible sigmoidoscopy as a screening test for the detection of colorectal carcinoma by primary care physicians
Gregory S. Cooper, Richard H. Fortinsky, Ronald Hapke, C. Seth Landefeld> ;Cancer. 1998 Apr 15
2 citations
Isolated jejunal Crohn's disease in a young woman presenting with malabsorption syndrome and abdominal pain.
Ronald Hapke, Christopher L. Corless, Ronald M. Katon> ;The American Journal of Gastroenterology. 1997 Oct 1
57 citations
Primary Care Physician Recommendations for Colorectal Cancer Screening: Patient and Practitioner Factors
Gregory S. Cooper, Richard H. Fortinsky, Ronald Hapke, C. Seth Landefeld> ;Archives of Internal Medicine. 1997 Sep 22
Cholestasis: Hepatocellular Reaction to Trimethoprim/Sulfamethoxazole
Anne M. Baciewicz, Ronald J. Hapke, Christine Y. Todd> ;The Annals of Pharmacotherapy. 1994 Nov 1
151 citations
A follow‐up study of intractable seizures in childhood
Peter R. Huttenlocher, Ronald J. Hapke> ;Annals of Neurology. 1990 Nov 1
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Hospital Affiliations

OHSU Health Hillsboro Medical CenterHillsboro, Oregon
Legacy Emanuel Medical CenterPortland, Oregon
Legacy Good Samaritan Medical CenterPortland, Oregon
Providence Portland Medical CenterPortland, Oregon