Thangam Venkatesan

Thangam Venkatesan, MD

  • Gastroenterology
  • Physician

Professor of Internal Medicine

Accepting new patients
4.5 out of 5
  • 45 Patient Satisfaction Ratings
  • 18 Patient Comments

Insurances We Accept


About Me

As a gastroenterologist, I’m passionate about improving the lives of my patients. I’m a professor of Clinical Medicine in the Division of Gastroenterology, Hepatology and Nutrition at The Ohio State University Wexner Medical Center, and excited to lead the Neurogastroenterology and Motility section. I treat a broad range of conditions, including disorders of gut-brain interaction (DGBI) as well as motility disorders that affect the function of the GI system.

However, the primary focus of my clinical and scientific work is in disorders of vomiting, specifically a condition called cyclic vomiting syndrome (CVS). My research is focused in understanding the cause for CVS and developing better therapies to treat this disorder. I was the lead author on the first-ever guidelines on the management of CVS, which is an important milestone that should help improve the lives of these patients. I’m also involved in multiple key clinical trials and studies in CVS with many exciting advances in the pipeline. I serve as one of the chief medical advisors to the Cyclic Vomiting Syndrome Association (CVSA), a nonprofit organization that serves to help patients with this condition. I also collaborate with other nonprofit organizations such as the International Foundation of Functional Gastrointestinal Disorders (IFFGD) and help with education, dissemination of information and research.

I enjoy working in academic medicine and helping to train the next generation of physicians. I mentor medical students, residents and junior faculty members, and help them with their professional and personal development.

When I’m not working, I love spending time with family and friends. I enjoy traveling and gardening. I also serve as a meditation instructor.
  • Best Doctors of America: 2009-2011, 2015-2020
  • Chief Medical Advisor: Cyclic Vomiting Syndrome Association (2009-present)
  • Chair of Guidelines Committee: Management of Cyclic Vomiting Syndrome in Adults
  • Inaugural recipient of the American Gastroenterological Association’s Maria A. Leo-Lieber Scholarship, 2021
  • Named to Castle Connolly's Regional Top Doctors list

Procedures and Conditions I Treat

  • Vomiting
  • Nausea
  • Constipation
  • Diarrhea
  • Gastrointestinal Diseases

Locations Where I Practice

Please note: Not all physicians schedule patients at each listed location.

Education and Training

Education History

Medical School

Kilpauk Medical College, Chennai 600 010
7/1/1986 - 4/30/1992


Kilpauk Medical College, Chennai 600 010
1/1/1991 - 12/31/1993


University of Connecticut Health Center, Farmington, CT
7/1/1994 - 6/1/1996


University of Cincinnati Medical Center, Cincinnati, OH
6/1/1996 - 8/14/1997


University of Cincinnati Medical Center, Cincinnati, OH
8/15/1997 - 8/15/2000

Board Certification

American Board of Internal Medicine/Gastroenterolo

Academic Information

My Department

Internal Medicine

My Division

Gastroenterology, Hepatology and Nutrition


The overall patient satisfaction rating is an average of all patient responses to the six doctor communication related questions shown below from the Clinician and Group Consumer Assessment of Healthcare Providers and Systems survey. For additional information about the patient satisfaction survey, please visit our Patient Satisfaction Survey page.

The comments are submitted by patients and reflect their view and opinions. The comments are not endorsed by and do not necessarily reflect the views of Ohio State Wexner Medical Center.

45 Patient Satisfaction Reviews

  • Overall
    4.5 out of 5
  • Explains Things Carefully
    4.6 out of 5
  • Listens Carefully
    4.6 out of 5
  • Gives Understandable Instructions
    4.5 out of 5
  • Knows My Medical History
    4.3 out of 5
  • Shows Respect
    4.6 out of 5
  • Time Spent Together
    4.5 out of 5
  • Reviewed on May 10, 2024


  • Reviewed on May 06, 2024

    My provider made me feel that she was listening to what I had to say and addressed my issues.

  • Reviewed on May 03, 2024

    Excellent explanations

  • Reviewed on Apr 05, 2024

    Dr.V is the BEST! I hope she will be able to do more to help us with rare diseases and this hospital and all the politics involved will step aside and allow her to do what she can to help us..who are suffering from a very debilitating illness.

  • Reviewed on Mar 10, 2024

    Didn't listen to me. Didn't address any questions.

  • Reviewed on Feb 18, 2024

    Very knowledgeable about cyclic vomiting syndrome

  • Reviewed on Dec 29, 2023

    Explained everything to me this visit. I'm passed visits this didn't happen. I was considering changing providers, but will continue for now. Maybe I just didn't give her the chance to get to know me. I'm a fairly new patient.

  • Reviewed on Dec 24, 2023

    I understood everything she said! Really appreciated her and her staff.

Consulting and Related Relationships

At The Ohio State University Wexner Medical Center, we support a faculty member’s research and consulting in collaboration with medical device, research and/or drug companies because a faculty member’s expertise can guide important advancements in the practice of medicine and improve patient care. In order to provide effective management of these relationships, the University requires annual disclosures from all faculty members with external interests related to their University responsibilities.

As of 09/29/2023, Dr. Venkatesan has reported no relationships with companies or entities.

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