Faculty Profile

Dr. Olga C. Aroniadis, M.D.,  M.Sc.

Olga C. Aroniadis, M.D., M.Sc.

Assistant Professor, Department of Medicine (Gastroenterology)

Professional Interests

Dr. Olga Aroniadis is an Assistant Professor in the Division of Gastroenterology. Dr. Aroniadis' research interests include studying the effects of non-conventional therapies, such as fecal microbiota transplantation and medical cannabis, on gastrointestinal diseases. Dr. Aroniadis recently completed a clinical trial to assess the role of fecal microbiota transplantation for the treatment of diarrhea-predominant irritable bowel syndrome. Additionally, Einstein/Montefiore awarded Dr. Aroniadis with a KL2 career development award in 2017 to support the microbiome analyses of this clinical trial. The clinical and microbiome findings of this clinical trial were presented as an oral abstract in a Distinguished Plenary Session at Digestive Diseases Week, for which Dr. Aroniadis received recognition for Scientific Accomplishment as an Early Career Investigator. Moreover, Dr. Aroniadis is also the recipient of the Resnick Pilot Award at Einstein/Montefiore. More recently, Dr. Aroniadis was awarded the Montefiore Medical Center Department of Medicine Rising Star Award. Additionally, Dr. Aroniadis serves as an active member of the training and research committees of the American College of Gastroenterology. Currently, Dr. Aroniadis is also a practicing clinician and educator in the Department of Medicine. As a clinician and educator, Dr. Aroniadis strives to deliver exceptional patient care and is dedicated to teaching and mentoring medical students, residents and fellows.

She completed her undergraduate education at Tufts University and graduated summa cum laude. She continued her educational training as a medical student at Albert Einstein College of Medicine and graduated with a Research Distinction in Gastroenterology. Dr. Aroniadis completed her Internal Medicine residency and chief residency and Gastroenterology fellowship (2012-2015) at Montefiore Medical Center. She obtained a Masters Degree in Clinical Research Methods at Albert Einstein College of Medicine.


Selected Publications

Please navigate to the pubmed link for a complete list of publications


Aroniadis OC, Brandt LJ, Oneto C, et al. A Double-Blind, Randomized, Placebo-Controlled Trial of Fecal Microbiota Transplantation Capsules (FMTC) for the Treatment of Diarrhea-Predominant Irritable Bowel Syndrome (IBS-D). Gastroenterology 2018;154:S-154-S-155.

Fenster M, Feuerstadt PF, Brandt LJ, Mansoor S, Huisman T, Aroniadis OC. Pathology of Colon Ischemia. Colorectal Dis; 2018 (epub ahead of print).

Aroniadis OC, Brandt LJ, Greenberg A, Borody T, Kelly C, Mellow M, Surawicz C, Cagle L, Neshatian L, Stollman N, Giovanelli A, Ray A, Smith R.Long-term follow-up study of fecal microbiota transplantation (FMT) for severe and/or complicated Clostridium difficile infection (CDI). J Clin Gastroenterol. 2015, [Epub ahead of print].

Agrawal M, Aroniadis OC, Brandt LJ, et al. The long-term efficacy and safety of fecal microbiota transplant for recurrent, severe and complicated Clostridium difficile infection in 146 elderly individuals. J Clin Gastroenterol. 2015, [Epub ahead of print].

Kelly C, Ihunnah C, Fischer M, Khoruts A, Surawicz C, Afzali A, Aroniadis O, et al. Fecal microbiota transplantation of Clostridium difficile infection in immunocompromised patients. Am J Gastroenterol. 2014; 109(7): 1065-1071.

Brandt LJ, Aroniadis OC, Mellow M, Kanatzar A, Kelly C, Park T, Stollman N, Rohlke F, Surawicz C. Long-term follow-up of colonoscopic fecal microbiota transplant for recurrent Clostridium difficile infection. Am J Gastroenterol. 2012;107(7):1079-1087.


Brandt LJ, Aroniadis OC. Vascular lesions of the gastrointestinal tract. In: Feldman M, Friedman LS, Brandt LJ (eds). Sleisenger and Fordtran’s Gastrointestinal and Liver Disease. 10th edn. Saunders: Pennsylvania, 2015 pp. 617-635.

Pinn DM, Aroniadis OC, Brandt LJ. Is fecal microbiota transplantation (FMT) an effective treatment for patients with functional gastrointestinal disorders (FGID)? Neurogastroenterol Motil. 2015; 27(1): 19-29.

Aroniadis OC, Brandt LJ. Intestinal microbiota and the efficacy of fecal microbiota transplantation in gastrointestinal disease. Gastroenterol Hepatol. 2014; 10(4): 1-8.

Aroniadis OC, Brandt LJ. Fecal microbiota transplantation: past, present and future. Curr Opin Gastroenterol. 2013;29(1):79-84.

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