Ayaaz Ismail, MD

Dr. Ayaaz Ismail received his medical degree from University of Zimbabwe School of Medicine in Harare in 1988. He completed his residency in internal medicine at Yale University and fellowship in gastroenterology and hepatology at Emory University. He was a lecturer in the Department of Medicine at University of Zimbabwe School of Medicine. He was a faculty member at University of Arizona where he was also the gastroenterology fellowship program director, before moving to Las Vegas.

Apart from his love for gastroenterology, he enjoys fishing, cycling and hiking with his family.


​Medical School
University of Zimbabwe School of Medicine, Harare, Zimbabwe.

Graduate Education
Bachelor of Medicine, Bachelor of Surgery Degrees – Awarded with Honors. University of Zimbabwe School of Medicine.

Yale Primary Care Internal Medicine Program, New Haven, CT, USA

Chief Resident
Yale Primary Care Internal Medicine Program, New Haven, CT, USA

Emory University School of Medicine, Atlanta GA.

Board Certification
American Board of Gastroenterogy

Original Publications

  1.  Mahomed K, Ismail A, Masona D. The young pregnant teenage – Why the poor outcome? Cent Afr J Med 1989 May; 35(5):403-6
  2. Chalasani N, Imperiale TF, Ismail A, Sood G, Carey M, Wilcox CM, Madichetty H, Kwo PY, Boyer TD, Predictors of large esophageal Varices in patients with cirrhosis. Am J Gastroenterol 1999 Nov:94(11):3285-91
  3. Chalasani N, Baluyut A, Ismail A, Zaman A, Sood G, Ghalib R, McCashland TM, Reddy KR, Zeryos X, Anbari MA, Hoon H. Cholangiocarcinoma in patients with primary sclerosing cholangitis: a multicenter case-control study. Hepatology 2000 jan;31(1):7-1 1.
  4. Gumbo T, Hakim JG, Mielke J, Siwji S, Just-Nubling G, Ismail A, Cryptococcus Myclitis: Atypical Presentation of a common infection. Clin Infec Dis. 2001 Apr 15;32(8):1235-6
  5. David S. Alberts, Janine G. Einspahr, Robert S. Krouse, Anil Prasad, James Ranger-Moore, Peter Hamilton, Ayaaz Ismail, Peter Lance, Steven Goldschmid, Lisa M. Hess, Michael Yozwiak, Hubert G. Bartels and Peter H. Bartels. Karyometry of the Colonic Mucosa. Cancer epidemiology, biomarkers and prevention 2007 Dec; 16(12):2704-2716
  6. Navin Kumar, Ayaaz Ismail, Randall Cohen. Ingestion of an unusual esophageal foreign body: what time is it? Gastrointestinal endoscopy 2009 July; 70(1):166

Book Chapters

1. Colorectal Adenomas. A.Ismail, P. Lance. Encyclopedia of Gastroenterology. Academic Press. 2003

2. Colorectal Cancer Prevention. A.Ismail, E.Gerner, P.Lance. Fundamentals of Cancer Prevention. Springer- Varlag.2005.

What We Do

Center for Colon and Digestive Diseases is committed to providing the highest quality of care to all our patients by practicing evidence based, cost-effective medicine, through comprehensive consultative services, and utilizing the most advanced procedures available. We strive to work closely with all members of the healthcare team. Our website is designed to provide answers to frequently asked questions about your visit. You can find an overview of our practice including our doctors and staff, office hours, insurance and appointment procedures, forms, bowel preparation instructions, and contact information.