Thomas Konturek, MD

Dr. Thomas Konturek is a gastroenterologist providing compassionate, integrated care for the prevention, diagnosis and treatment of gastrointestinal and liver diseases to his patients in the North Orange County Area.

Working in different countries and experiencing patient care in different culturally sensitive settings, Dr. Konturek’s focus in treating GI related diseases is patient centered with the aim to provide the best possible evidence-based approach to the care of his patients.

Dr. Konturek’s special interests include digestive disorders of the brain-gut interaction (irritable bowel syndrome), small intestinal bacterial overgrowth (SIBO) and peptic related diseases (GERD and peptic ulcer disease). In addition to clinical work, Dr. Konturek conducted translational research in the field of neurogastroenterology with focus on nerve growth factors in IBS.






Loyola University Medical Center in Chicago

     Fellowship, Gastroenterology 

St. Elizabeth’s Medical Center (Tufts School of Medicine), Boston 

     Residency, Internal Medicine 

Charité Universitätsmedizin, Berlin, Germany 

     Medical School 

Certifications & Licenses: 

American Board of Internal Medicine 

     Certified in Internal Medicine

CA State Medical License 



Konturek TJ, Martinez C, Niesler B, van der Voort I, MönnikesH, Stengel A, Goebel-Stengel M. The Role of Brain-Derived Neurotrophic Factor in Irritable Bowel Syndrome. Front Psychiatry. 2021 Jan 14;11:531385. doi: 10.3389/fpsyt.2020.531385. PMID: 33519536; PMCID: PMC7840690.

Konturek PC, Harsch IA, Konturek K, Schink M, Konturek T, Neurath MF, Zopf Y. GutLiver Axis: How Do Gut Bacteria Influence the Liver? Med Sci (Basel). 2018 Sep 17;6(3):79. doi: 10.3390/medsci6030079. PMID: 30227645; PMCID: PMC6165386.

Konarska K, Cieszkowski J, Warzecha Z, Ceranowicz P, Chmura A, Kuśnierz-Cabala B, Gałązka K, Kowalczyk P, Miskiewicz A, Konturek TJ, Pędziwiatr M, Dembiński A. Treatment with Obestatin-A Ghrelin Gene-Encoded Peptide-Reduces the Severity of Experimental Colitis Evoked by Trinitrobenzene Sulfonic Acid. Int J Mol Sci. 2018 Jun 1;19(6):1643. doi: 10.3390/ijms19061643. PMID: 29865176; PMCID: PMC6032262.

Konturek T, Lembo A. Spasm, nutcracker, and IEM: real or manometry findings? J Clin Gastroenterol. 2008 May-Jun;42(5):647-51. doi: 10.1097/MCG.0b013e3181646d19. PMID: 18364582.