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Office
6020 E Arbor Ave
Ste 101
Mesa, AZ 85206Phone+1 480-985-1700Fax+1 480-396-3659
Education & Training
- McGaw Medical Center of Northwestern UniversityFellowship, Gastroenterology, 2004 - 2007
- University of MichiganResidency, Internal Medicine, 2001 - 2004
- University of North Carolina at Chapel Hill School of MedicineClass of 2001
Certifications & Licensure
- AZ State Medical License 2006 - 2027
- IL State Medical License 2004 - 2008
- American Board of Internal Medicine Gastroenterology
Publications & Presentations
PubMed
- 166 citationsImproving the prediction of hepatocellular carcinoma in cirrhotic patients with an arterially-enhancing liver massJorge A. Marrero, Hero K. Hussain, Hahn V. Nghiem, Ramsey Umar, Robert J. Fontana
Liver Transplantation. 2005-03-01 - 23 citationsMassive lower gastrointestinal bleeding after rejection of pancreatic transplants.Peter D.R. Higgins, Ramsey K. Umar, Jennifer R. Parker, Matthew J. DiMagno
Nature Clinical Practice. Gastroenterology & Hepatology. 2005-05-01
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