Dr. Thirumazhisai Gunasekaran, MD
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Dr. Thirumazhisai Gunasekaran, MD


Pediatric Gastroenterology | Male


Dr. Thirumazhisai Gunasekaran, MD is a pediatric gastroenterology doctor who practices in Oakbrook Terrace, IL. He is 64 years old. Dr. Gunasekaran is affiliated with Loyola University Medical Center, St. Alexius Medical Center and Alexian Brothers Medical Center.

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Dr. Gunasekaran's Experience

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Languages Spoken

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Memberships & Professional Affiliations

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Visiting Dr. Gunasekaran

Dr. Gunasekaran accepts 9 insurance carriers

Affiliated Hospitals

Hospital Quality
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Dr. Gunasekaran's Reviews

Likelihood of recommending Dr. Gunasekaran to family and friends
based on 12 total surveys (4 with reviews)
Dr. Gunasekaran's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers Questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
  • Average wait time
    16 to 30 minutes
Patient Reviews (4)
Winnetka, IL |
I have never felt like I had to write a review before until now. We had a simply horrible experience with this doctor. After being 45 minutes late with no excuse as to why he spent 7 minutes with my child which included a few questions which he felt eliminated everything serious to a rectal exam which was completely mortifying and unwarranted. He then prescripted a drug that was completely inappropriate at the time( verified with another doctor) to her symptoms. NEVER go back again!
in Wauconda, IL |
Guna walked into the room without barley speaking a word. he told my daughter, who he hadn't barely spoken to, made eye-contact with or even tried to make her comfortable, to pull down her pants, both underwear and her shorts, and to show him her butt as he would be performing a rectal exam. Please note, there was never a nurse in the room, or someone to comfort here. Instantly my daughter became hysterical. There is not enough room to tell me story here. But do not bring another child to him.
in St. Charles, IL |
We have been nothing but pleased in our experiences with Dr. Guna. He listens to our concerns about our daughter's Crohn's disease, and we feel confident that we are getting the best care in Chicago. Office staff is helpful and responds quickly. We rarely have a wait in the office.
in Schaumburg, IL |
It seems that doctor Guna is first and only choice is Miralax to treat chronic pediatric constipation despite new (2015) data that Miralax should not be used long term not only pediatric but in adults as well because of toxicity FDA has opened a new research due to increasing complaints of side effects but he doesn't want to listen (he did not even know about it)and just give alternatives .he is very rigid and shows his temper, sometimes rude. it is Miralax or go find other doctor policy
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    Dr. Gunasekaran's experience matches your search based on the following criteria:

    •  Based on total number of patients treated over the last 12 months
    •  Specializes in Pediatric Gastroenterology
    •  Board certified in Pediatric Gastroenterology
    •  No malpractice claims found
    •  No sanctions found
    •  No board actions found

    Awards & Recognition

    • Awards & Honors
      • Healthgrades Honor Roll
      What is a recognized doctor
    • Media & Publications

      Dr. Gunasekaran has no media or publications listed.

    Background Check

    • 0
      Malpractice Claims

      No malpractice history found for Illinois.

      What is medical malpractice
    • 0

      No sanctions history found for the years that Healthgrades collects data.

      What is a sanction or disciplinary action
    • 0
      Board Actions

      No board actions found for the years that Healthgrades collects data.

      What are board actions

    Board Certifications

    Why It Matters: Dr. Gunasekaran's Board Certifications

    Board certification should be one of your top considerations when choosing a doctor. Board certification is an official recognition given to doctors who have met specific requirements set by national medical specialty boards in the... More

    • Pediatric Gastroenterology

    Conditions Treated

    • Anemia
    • Crohn's Disease
    • Gas-Bloat Syndrome
    • Gastroesophageal Reflux Disease (GERD)
    • Intestinal Obstruction
    • Ulcerative Colitis
    • Vomiting Disorders


    • Medical School
      Madras University India
    • Internship Hospital
      Institute Of Child Health and Hospital For Children Madra India
    • Residency Hospital
      Prince Charleshospital/Queen Elizabeth Hospital Uk
    • Fellowship Hospital
      Bc Children Hospital/Univerty Of Bc Vancouver

    Languages Spoken

    • English
    • Spanish

    Memberships &
    Professional Affiliations

    Dr. Gunasekaran does not have any memberships or affiliations listed. If you are Dr. Gunasekaran and would like to add memberships or affiliations, please update your free profile.


    • Pediatric Gastroenterology
    • Pediatrics

    Procedures Performed

    • Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy