Jordan Karlitz, MD Jordan Karlitz, MD

Assistant Clinical Professor of Medicine

Director, GI Hereditary Cancer and Genetics Program


Dr. Jordan Karlitz graduated from the University of California at Berkeley with a degree in molecular biology and genetics. He subsequently attended the McGill University Faculty of Medicine in Montreal where he received his medical degree in 2000. He received his internal medicine training at the Columbia University College of Physicians and Surgeons/New York Presbyterian Hospital and completed his fellowship in gastroenterology and hepatology at the Albert Einstein College of Medicine/Montefiore Medical Center in 2006.

Dr. Karlitz joined the faculty at the Tulane University School of Medicine in the division of Gastroenterology in 2008 as assistant professor of medicine. In 2010, he completed a preceptorship in IBD sponsored by the Crohn's and Colitis Foundation of America at the Massachusetts General Hospital. In 2011, he founded the hereditary GI cancer program at the Tulane Cancer center, the first clinical program of it's kind in Louisiana, of which he is director. He is also currently the associate program director of the gastroenterology fellowship program at Tulane.  

Dr. Karlitz's clinical interests and research centers on familial colon cancer syndromes, including hereditary nonpolyposis colorectal cancer (HNPCC)/Lynch Syndrome and familial adenomatous polyposis (FAP). Through collaboration with the Louisiana Tumor Registry (LTR) based at the LSU School of public health (where he is an adjunct professor), Dr. Karlitz has been studying colorectal cancer incidence rates in Louisiana. Through his research, he has identified one of the highest rates of colorectal cancer in the U.S. in the Acadian parishes of Louisiana. Also through collaboration with the LTR, Dr. Karlitz has been studying population based Lynch syndrome screening in young colorectal cancer patients.

Dr. Karlitz's Acadian parish colorectal cancer research has been presented at the American Gastroenterological Association's Digestive and Disease Week where he was a poster of distinction award winner in 2013. He also presented his population based Lynch Syndrome screening research at the Colorectal Cancer Prevention Plenary at the Annual American College of Gastroenterology (ACG) meeting in 2014 and was awarded the prestigious ACG Governors Award for excellence in clinical research.

Dr. Karlitz is involved in multiple state and national initiatives regarding colorectal cancer and GI issues in general. He is currently the Public Relations Chairperson for the American College of Gastroenerology (ACG) and the physician editor for the ACG's Digestive Health Smartbrief (a biweekly national publication that highlights important patient related GI news). He is also an invited participant of both the American Cancer Society's National Colorectal Cancer Roundtable and the Louisiana Sate Colorectal Cancer Roundtable. Through his affiliation with the LTR, Dr. Karlitz serves as the physician advisor for GI cancers for the state tumor registry.

Selected Publications

 Karlitz JJ, Hsieh M, Liu Y, Blanton C, Schmidt B, Jessup JM, Wu X, Chen VW. Population-based Lynch Syndrome Screening by Mircrosatellite Instability in Patients< 50: Prevalence, Testing Determinants, and Results Availability Prior to Colon Surgery. AM J of Gastroenterology 2015 Jan 20. doi:10.1038/ajg.2014.417. (Epub ahead of print)

Chen VW, Hsieh M, Charlton ME, Ruiz BA, Karlitz JJ, Altekruse S, Ries L, Milburn Jessup JM. Analysis of Stage and Clinical/Prognostic Factors for Colon and Rectal Cancer from SEER Registries: AJCC and Collaborative Stage Data Collection System. Cancer. 2014 Dec 1;1120 suppl 23:3793-806. doi: 10.1002/cncr.29056

Karlitz JJ, Blanton C, Andrews P, Wu X, Chen VW, Wu X, Fontham E. Colorectal Cancer Incidence Rates in he Louisiana Acadian Parishes Demonstrated to be Amongst the Highest in the United States. Clin Transl Gastroenterol. 2014 Oct 2;5:e60. doi: 10.1038/ctg.2014.10.

Karlitz JJ, Provenzale D. Invited Comment: Hereditary Colorectal Cancer Screening and Management Practices by Colorectal Surgeons. Tech Coloproctol. 2014 Mar; 18(3):313-14.

Karlitz JJ, Li ST, Holman RP, Rice MC. EBV-associated colitis mimicking IBD in an immunocompetent patient. Nat Rev Gastroenterol Hepatol. 2011 Jan;8(1):50-54.

Gupta MK, Karlitz JJ, Raines DL, Florman SS, Lopez FA. Heterotopic Pancreas. J La State Med Soc. 2010 Nov-Dec;162(6);310-3.

Feuerstadt P, Bunim A, Garcia H, Karlitz JJ, Massoumi H, Thosani A, Pellecchia A, Wolkoff AW, Gaglio P, Reinus JR. Effectiveness of Hepatitis C treatment with Pegylated Interferon and Ribavarin in Urban Minority Patients. Hepatology. 2010 Apr;51(4):1137-43

Karlitz JJ. The effectiveness of colonoscopy in reducing mortality from colorectal cancer, letter to the editor. Ann Intern Med. 2009 Jun 2;150(11):816; author reply 819-20.

Karlitz JJ, Tepler IA, Tanaka KE. Endometriosis with Colonic Wall Invasion. Clin Gastroenterol Hepatol. 2007 Mar;5(3):A30

Keller CE, Gamboa ET, Hays AP, Karlitz JJ, Lowe G, Green PH, Bhagat G. Fatal CNS vasculopathy in a patient with refractory celiac disease and lymph node cavitation.Virchows Arch. 2006 Feb;448(2):209-13

Karlitz JJ. Summaries of topics in virtual colonoscopy and novel endoscopic techniques from DDW 2006. Published on the website of the World Organisation of Digestive Endoscopy (OMED)


Lindsay Ford, Alice Williamson, Martin Moehlen, Jordan Karlitz. An unusual source of gastrointestinal bleeding: Dieulafoy’s lesion in a duodenal diverticulum. ACG meeting 2011, Washington D.C.

Brett Hymel, Geoff Kitzman, David Victor III, Jordan Karlitz. Thromboembolic complications in patients with inflammatory bowel disease. ACG meeting 2009, San Diego

Ari L. Bunim, Jordan Karlitz, Hatef Massoumi, Eddie Garcia, Amar J. Thosani, Andrew Pellecchia, Paul J. Gaglio, John F. Reinus. Effectiveness of hepatitis C treatment with Pegylated Interferon and Ribavarin in an urban patient population. AASLD 2008, San Francisco



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