Thangam Venkatesan, MBBS

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4.3 (49)
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Quality patient care requires careful listening to the patient’s own story of their problem, so as to understand the concerns and goals for care from the patient’s perspective. For care to be effective, the patient must remain an active partner of the entire health care team. The best quality care requires going the extra mile to obtain the best possible understanding of the patient’s condition. I also partner with community leaders and non-profit organizations to further enhance and contribute to improving the care of patients especially those with Cyclic Vomiting Syndrome.


Dr. Thangam Venkatesan, Associate Professor, has been with the Division of Gastroenterology and Hepatology since 2004. She is actively involved in all four missions of the Medical College of Wisconsin: patient care, education, research and community outreach. She is currently the Fellowship Program Director. Her area of clinical expertise and scientific interest is in a condition called Cyclic Vomiting Syndrome (CVS), characterized by recurrent episodes of nausea and vomiting. She conducts translational research exploring the neurobiology of nausea and vomiting in patients with CVS. Dr. Venkatesan has established a clinic for the care of CVS patients that serves as a destination for patients from 48 states as well as Canada and Puerto Rico. Additionally she serves as the Chief Medical Advisor of the Cyclic Vomiting Syndrome Association (CVSA).


Diseases & Conditions

Cyclic Vomiting Syndrome (CVS)
Gastroesophageal Reflux Disease (GERD)
Irritable Bowel Syndrome (IBS)

Treatment & Services

Upper Endoscopy (EGD)

Ages Seen


Languages Spoken


Hospital Affiliations

Froedtert Hospital


Gastroenterology and Hepatology - Froedtert Hospital
9200 West Wisconsin Avenue
Milwaukee, WI 53226
(414) 805-3310
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Education & Training

Kilpauk Medical College - Madras - In - Doctor of Medicine (M.B.B.S.) - (1990)

Kilpauk Medical College - Madras - In - Rotating Internship in Internal Medicine - (1991-1993)

University of Connecticut Health Center, John Dempsey Hospital - Farmington - Internship & Residency in Internal Medicine - (1991-1993)

University of Cincinnati Medical Center - OH - Residency in Internal Medicine - (1996-1997)

University of Cincinnati Medical Center - OH - Fellow in Gastroenterology - (1997-2000)

Board Certifications

Internal Medicine

Patient Reviews

The comments are submitted by patients (or their caregivers) and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of the Froedtert & the Medical College of Wisconsin health network. Learn more about our survey.

4.3 out of 5. 49 ratings, 16 reviews
Jan. 28, 2020
the doctor was able to make a diagnosis when no one else could and has gotten me to a healthy "sweet spot" over the past 10 years.
Jan. 25, 2020
Very happy to have Dr V as my daughter's GI Doctor.
Jan. 14, 2020
Dr V is caring, knowledgeable. We are fortunate to have her as our doctor.
Dec. 11, 2019
Provider show care
Dec. 10, 2019
Dr. Venkatesan impressed me with her vast knowledge on my condition and her straight forwardness made me feel like she was looking out for my best interest. A long with all of this, she seems like a fun, down to earth person!
Dec. 4, 2019
she is THE BEST and most knowledgeable and understanding provider I have ever been treated by when it comes to my Cyclic Vomiting Syndrome. I recommend her to all of my Facebook pages that specifically target those suffering from Cyclic Vomiting Syndrome. this disease is not understood by many doctors, so to have someone who cares for me and totally understands what I'm going through is a BLESSING to say the absolute least. she is the best.
Nov. 8, 2019
Dr V saved my life with Emend! go Dr V!
Sept. 19, 2019
What a waste of time and money to see her. Her assistant was more helpful than she was. When she came in, we talked very little. I have lost over 15 lbs. in 2 months from vomiting. If seen like she didn't care. All she did for me was to prescribe a pill for me that cancer patents take. When I went to pick up the prescription, the pharmacist, told me that they only give out 2-3 pills a month for each treatment. She wanted me to take them for 1 month. The pharmacist told me that the pills are $2,000 each. Our insurance won't cover it. So I called the doctors office, they had no idea what I was talking about. I bet I won't hear from the doctor or her office about the pills. She specify in vomiting, but if seems like she didn't care what is causing me to vomit. I asked her about my bowels. She told me that I'm seeing another GI doctor, he talk to you about it. I will never want to see her again.
Sept. 9, 2019
I felt judged for wanting to medicate with natural medicine instead of pharmaceuticals. when I tried to explain how natural meds are helping I did not feel like the doctor was open to listening. I was told that most doctors would not help me....and i do need the meds prescribed so I'm thankful to have a doctor but frustrated that money is the most important thing when it comes to medical CARE. where does the money come from? drug companies. also, when I asked about long term side effects of a particular prescribed med I was not given a clear answer.
July 30, 2019
I traveled over 300 miles to see this doctor and she did not disappoint! She is an expert on a condition I have suffered with for 25 years. Imagine having heart attacks and your physicians telling you it's just indigestion. Now, 25 years later, you find a physician that knows exactly what is happening and how to prevent it! It feels amazing!
July 30, 2019
before the appointment I did not receive any information regarding where my appointment was located and of the day of my appointment they sent me a very long form and told me I had to complete before my appointment. I recommend sending emails or paper at least 48 hours before the schedule appointment to allow for sufficient time needed to complete.
May 1, 2019
Dr. V and her staff explain clearly and carefully what is involved in my health issues. I am SO grateful that they are here.
April 30, 2019
Very caring and compassionate.
April 21, 2019
Every single person was amazing! Everyone was very nice,understanding,compassionate and professional. I am so thankful for the entire team. We are lucky to have this in our state. keep up the amazing work!!
March 19, 2019
I belong to Aurora. *Dr. V. recommend & I find her the best.
Feb. 28, 2019
*r. Venkatesan was focused on getting biopsy only - not me as a person. Ordered follow up care without telling me - I cancelled 6 mth follow-up because I could not find out purpose.
#4. PA.