Physician’s Profile

Ioannis Economou, MD

Colon and Rectal Disease
Colon Cancer Screening
Colon Polyps
Crohn's Disease
Gastrointestinal Infection
GERD (Gastroesophageal Reflux Disease)
Inflammatory Bowel Disease (IBD)
Irritable Bowel Syndrome (IBS)
Peptic Ulcer Disease
Small Bowel Disease
Stomach Disorders
Ulcerative Colitis
Ulcer Disorders
Upper Endoscopy

Dr. Economou joined the Columbia University IBD Center in 2021. He is the Associate Director of the IBD Center, Director of Clinical Trials in IBD, and the IBD Fellowship Program Director. Dr. Economou is an Associate Professor of Medicine (in Surgery) specializing in the management of patients with Crohn’s Disease and Ulcerative Colitis.

Following his training, which included an Advanced IBD Fellowship at Cleveland Clinic, Dr. Economou joined the Yale School of Medicine as an Assistant Professor of Medicine. While at Yale he was actively involved in IBD education, research, and patient care. He was the Medical Director of Yale New Haven Hospital Temple Infusion Center and Medical Co-director of the Yale New Haven Hospital Temple Endoscopy Suite. After 5 years at Yale, he joined the Icahn School of Medicine at Mount Sinai in New York at the level of Assistant Professor of Medicine.  At Mount Sinai, he was the Director of the Mount Sinai Downtown IBD Center and he worked at the Feinstein IBD Clinical Center.  In 2018, he moved to Chicago where he joined the Rush University IBD Center. After 3 years at Rush University Medical Center where he was the Director of Industry Sponsored Trials in Gastroenterology, he was recruited by the Columbia University IBD Center.

Dr. Economou has clinical and research experience in inflammatory bowel diseases. His main goal is to provide a personalized treatment plan to his patients. His expertise is in taking care of patients with complex cases of Crohn’s Disease and Ulcerative Colitis. Dr. Economou offers second opinion consultations for patients with IBD.

Dr. Economou has been involved in multiple clinical research trials and is able to provide novel treatments to his patients. He has published in peer-reviewed journals and presented at national meetings. In addition to his focus in the care of patients with IBD he enjoys providing care for patients with general gastrointestinal diseases and teaching gastroenterology fellows.


11/2007: "Collaborations in IBD: A Fellows Mentoring Program". Chandler, AZ. Travel grant recipient.

2006: American College of Gastroenterology Clinical Research Award – Pilot Grant: Role of Hepcidin in the Pathogenesis of Chronic Anemia in Patients with Ileal Pouch-anal Anastomosis"

2006: Cleveland Clinic Foundation Research Program Committee (RPC) Award:Anemia in Pouchitis – A Model for Anemia of Chronic Disease"

11/2005: Gastroenterology Research Group – Travel Scholarship: "11h Annual Methodologies in Healthcare Outcomes in Gastroenterology". Mesa, AZ. Travel grant recipient.

Van J, Jakate S, Economou I. Gastrointestinal bleeding from gangliocytic paraganglioma treated with palliative radiotherapy: a case report. Digestive Medicine Research 2020;3:75-75.
Uzzan M, Tokuyama M, Rosenstein AK, Tomescu C, SahBandar IN, Ko HM, Leyre L, Chokola A, Kaplan-Lewis E, Rodriguez G, Seki A, Corley MJ, Aberg J, La Porte A, Park EY, Ueno H, Oikonomou I, Daron I, lliev ID, Chen BK, Lui J, Schacker TW, Furtado GC, lira SA, Colombe! JF, Horowitz A, Lim JK, Chomont N, Rahman AH, Montaner U, Ndhlovu LC, Mehandru S. Anti-alpha4beta7 therapy targets lymphoid aggregates in the gastrointestinal tract of HIV- 1-infected individuals. Sci Transl Med 2018;10.
Sarkar S, Mitchell KA, Lim JK, Oikonomou I, Jakab 5. Colitis Following Initiation of Sofos­buvir and Simeprevir for Genotype 1 Hepatitis C. ACG Case Rep J 2015;3:42-4.
Melmed GY, Pandak WM, Casey K, Abraham B, Valentine J, Schwartz D, Awais D, Bassan I, Uchtiger S, Sands B, Hanauer S, Richards R, Oikonomou I, Parekh N, Targan S, Johnson K, Hariri R, Fischkoff S. Human Placenta-derived Cells (PDA-001) for the Treatment of Mod­erate-to-severe Crohn's Disease: A Phase 1b/2a Study. Jnflamm Bowel Dis. 2015; 21:1809-16.
Le PN, Greer JB, Oikonomou I, Schraut WH, Siegel CA, Cross RK, Holubar SD, Tinsley A, Kol­tun WA, Binion DG, Regueiro MD. 18D LIVE Case Series-Case 2: Previous Cancer in a Pa­tient with Crohn's Disease: Is It Appropriate to Use Biologics and lmrnunosuppressants for IBD Treatment? lnflamm Bowel Dis 2015;21:1401-6.