Department / Division
Medicine / Medicine - Gastroenterology
508 Fulton Street (111E)
Durham, NC 27705
919-286-0411, extension 6945
General gastroenterology; diagnostic and therapeutic endoscopy; colon cancer screening and surveillance; health-services research, specifically quality, efficiency, and cost-effectiveness of medical care in gastroenterology
I am a gastroenterologist and health services researcher with an interest in optimizing health care value. My current research is focused on the use of systems engineering methodologies, including discrete event simulation modeling, to improve the quality and efficiency of health care delivery.
This faculty member has no reported relationships with industry.
Chan, JL; Lin, L; Feiler, M; Wolf, AI; Cardona, DM; Gellad, ZF. Comparative effectiveness of i-SCAN¿ and high-definition white light characterizing small colonic polyps. World Journal of Gastroenterology. 2012;18:5905-5911. (2012) Abstract
Gellad, ZF; Muir, AJ; McHutchison, JG; Sievert, W; Sharara, AI; Brown, KA; Flisiak, R; Jacobson, IM; Kershenobich, D; Manns, MP; Schulman, KA; Reed, SD. Cost-effectiveness of truncated therapy for hepatitis C based on rapid virologic response. Value in Health. 2012;15:876-886. (2012) Abstract
Gellad, ZF; Reed, SD; Muir, AJ. Economic evaluation of direct-acting antiviral therapy in chronic hepatitis C. Antiviral therapy. 2012;17:1189-1199. (2012) Abstract
Gellad, ZF; Stechuchak, KM; Fisher, DA; Olsen, MK; McDuffie, JR; Ostbye, T; Yancy, WS. Longitudinal adherence to fecal occult blood testing impacts colorectal cancer screening quality. American Journal of Gastroenterology. 2011;106:1125-1134. (2011) Abstract
Gellad, ZF; Provenzale, D. Colorectal cancer: national and international perspective on the burden of disease and public health impact. Gastroenterology. 2010;138:2177-2190. (2010) Abstract
Gellad, ZF; Weiss, DG; Ahnen, DJ; Lieberman, DA; Jackson, GL; Provenzale, D. Colonoscopy withdrawal time and risk of neoplasia at 5 years: results from VA Cooperative Studies Program 380. American Journal of Gastroenterology. 2010;105:1746-1752. (2010) Abstract
Jackson, GL; Melton, LD; Abbott, DH; Zullig, LL; Ordin, DL; Grambow, SC; Hamilton, NS; Zafar, SY; Gellad, ZF; Kelley, MJ; Provenzale, D. Quality of nonmetastatic colorectal cancer care in the Department of Veterans Affairs. Journal of Clinical Oncology. 2010;28:3176-3181. (2010) Abstract
Gellad, ZF; Almirall, D; Provenzale, D; Fisher, DA. Time from positive screening fecal occult blood test to colonoscopy and risk of neoplasia. Digestive Diseases and Sciences. 2009;54:2497-2502. (2009) Abstract