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    Thomas M Zarchy, MD

    TitleAssociate Professor of Clinical Medicine
    SchoolKeck School of Medicine of USC
    DepartmentMedicine
    AddressIRD 704
    Health Sciences Campus
    Los Angeles California 90089-9091
    Phone+1 323 442 5576
    vCardDownload vCard

      Collapse Overview 
      Collapse Overview
      Dr. Zarchy's major areas of research interest are outcome studies regarding use of colonoscopy and sigmoidoscopy for finding advanced colon neoplasms; inflammatory bowel disease in low socioeconomic populations. Currently he is a Principal Investigator in an IRB approved study of the utility of rectal bleeding, +FOBT and iron deficiency anemia as indications of colonoscopy versus analysis of demographics and genetics of Roybal and IBD patients with regard to Crohns vs. UC and the severity of UC.

      Dr. Zarchy earned his medical degree from George Washington University. He performed his residency at Veterans Administration Hospital and Georgetown University Hospital. He stayed on to complete his Gastroenterology and Hepatology Fellowship.


      Collapse Biography 
      Collapse Awards and Honors
      George Washington University1969 - 1970Scholarship
      New York Allergy Foundation1970Summer Research Grant
      MedPartners1995Third Highest Patient Satisfaction Rating
      Digestive Disease Week1996Moderator
      American College of Physicians1998Fellow
      American Gastroenterology Association2006Fellow

      Collapse Bibliographic 
      Collapse Publications
      Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help.
      List All   |   Timeline
      1. Zarchy T. Colonoscopy screening in average-risk individuals ages 40-49 versus 50-59 years. Gastroenterology. 2008 Sep; 135(3):1016-7; author reply 1017. PMID: 18703063.
        View in: PubMed
      2. Zarchy T, Tsai F, Ramicone E, Chan LS. A risk profile for advanced proximal neoplasms on diagnostic colonoscopy. Dig Dis Sci. 2009 Jan; 54(1):151-9. PMID: 18535906.
        View in: PubMed
      3. Zarchy T, Pais S. Virtual colonoscopy to screen for colorectal cancer. N Engl J Med. 2004 Mar 11; 350(11):1148-50; author reply 1148-50. PMID: 15017679.
        View in: PubMed
      4. Lew EA, Lewin KJ, Zarchy T, Pisegna JR. Adenocarcinoma of the colon with neuroendocrine features and secretory diarrhea. Am J Gastroenterol. 1999 Jun; 94(6):1692-4. PMID: 10364049.
        View in: PubMed
      5. Zarchy T, Ershoff D. Risk of colorectal cancer in families of patients with adenomatous polyps. N Engl J Med. 1996 May 16; 334(20):1339-40. PMID: 8609964.
        View in: PubMed
      6. Zarchy T, Ershoff D. Do characteristics of adenomas on flexible sigmoidoscopy predict advanced lesions on baseline colonoscopy? Gastroenterology. 1994 Jun; 106(6):1501-4. PMID: 8194695.
        View in: PubMed
      7. Zarchy T, Ershoff D. Which clinical variables predict an abnormal double-contrast barium enema result? Ann Intern Med. 1991 Jan 15; 114(2):137-41. PMID: 1984389.
        View in: PubMed