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Internal Medicine

Hussein Bitar, MD

Assistant Professor of Medicine
IBD Program Director

COMD 7400
800 Stanton L Young Blvd
Oklahoma City, OK

405-271-5428 (Office)

Dr. Bitar graduated from the Lebanese University-Faculty of Sciences and received his medical degree from the Lebanese University-Faculty of Medical Sciences in 2011.  He subsequently completed a residency in Internal Medicine and fellowship in Gastroenterology at the University of Oklahoma.  During part of his fellowship, he completed an away rotation in Inflammatory Bowel Diseases at Northwestern University in Chicago.  He is currently an Assistant Professor of medicine at the University of Oklahoma.  Dr. Bitar is board certified in internal medicine and gastroenterology.  He has received the University of Oklahoma, College of Medicine Gold Humanism Award in Medicine in 2017.  He is a member of the American College of Gastroenterology, the American Gastroenterological Association, the American Society of Gastrointestinal Endoscopy and the Crohn's and Colitis Foundation.

Academic Section(s):

Digestive Diseases and Nutrition


Lebanese University – Faculty of Sciences
Hadath, Lebanon
MD (2011)

Board Certification(s):

Internal Medicine



University of Oklahoma Health Sciences Center
Oklahoma City, OK
Internal Medicine


University of Oklahoma Health Sciences Center
Oklahoma City, OK

Clinical/Research Interests:

  • Inflammatory Bowel ​Diseases (i.e. Crohn's Disease and Ulcerative Colitis)
  • Fecal Microbiota Transplantation (Stool Transplant)
  • Single Balloon Small Bowel EnteroscopyVideo Capsule Endoscopy
  • Colon ​Cancer Screening
  • Upper Endoscopy
  • Colonoscopy
  • Endoscopic Mucosal Resection

Select Honors & Accomplishments:

University of Oklahoma College of Medicine Gold Humanism Award in Medicine, 2017

Gastroenterology chief fellow 2017-2018

Oklahoma University Medical Center resident council member 2017-2018

Oklahoma University College of Medicine Chapter of the Gold Humanism Honor Society 2017

Best Quality Improvement Projec,t Graduate Medical  Education Resident Quality and Patient Safety Day, University of Oklahoma Health Sciences Center 2017

Best  Oral  Presentation,  University  of  Oklahoma  Health  Sciences  Center  Stewart Wolf Research Day 2015

Best Poster Presentation,  University of Oklahoma Health Sciences Center Stewait Wolf Research Day 2014

Select Publications:

Research Networking Profile

Bitar H.  More pictures: better clarity or more artifact.  Gastrointest Endosc. 2019 Jul;90(1):168. doi: 10.1016/j.gie.2019.01.024.PMID: 31228980

Bitar H, Madhoun M, Tierney W. Response.  Gastrointest Endosc. 2019 Feb;89(2):446-447. doi: 10.1016/j.gie.2018.10.012.PMID: 30665542

Bitar H, Madhoun M, Tierney W.Response. Gastrointest Endosc. 2018 Oct;88(4):781-782. doi: 10.1016/j.gie.2018.06.001.PMID: 30217247  

Bitar H, Zia H, Bashir M, Parava P, Hanafi M, Tierney W, Madhoun M. Impact of fellowship training level on colonoscopy quality and efficiency metrics.  Gastrointest Endosc. 2018 Aug;88(2):378-387. doi: 10.1016/j.gie.2018.04.2338. Epub 2018 Apr 19. PMID: 29679692

Bitar H, Farooqui S, Nusrat S. Two Colonic Masses: Twice the Enigma.  Clin Gastroenterol Hepatol. 2018 Apr;16(4):A31-A32. doi: 10.1016/j.cgh.2017.08.031. Epub 2017 Sep 1  PMID: 28865765

Madhoun MF, Bitar H, Bhatti O, Zia H, Parava P, Bashir MH.  Diabetics on Narcotics Are Less Likely to Achieve Excellent Bowel Preparation Than Are Patients with Either Condition.  Dig Dis Sci. 2017 Mar;62(3):723-729. doi: 10.1007/s10620-016-4417-6. Epub 2016 Dec 29. PMID: 28035547