About Shakthi Kumar, MD
S. Dharan Kumar, MD, a gastroenterologist at Endeavor Health, provides care for a wide range of gastrointestinal conditions including gastroesophageal reflux, liver disease and colorectal disorders. He performs procedures such as colon cancer screenings and sigmoidoscopies, and also evaluates patients with complex stomach and esophageal conditions. Dr. Kumar takes a tailored approach to each clinical scenario, focusing on providing current medical information and building strong partnerships with patients throughout their care.
Care philosophy
I believe excellent and effective medical care starts with a strong partnership between me and my patients. Every person and clinical situation is different, so I strive to tailor my approach to fit their specific needs. I aim to provide patients with current, detailed information and always lead with compassion.
Overview
- Gender Male
Conditions treated (7)
- Constipation
- Esophageal disease
- Gastroesophageal reflux
- Gastrointestinal diseases
- Rectal problems
- Liver disease
- Stomach diseases
Procedures performed (5)
- Upper endoscopy (EGD)
- Colonoscopy
- Video capsule endoscopy
- Sigmoidoscopy
- Colon cancer screening
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Endeavor Health Medical Group
796 Royal St. George Dr., Suite 108 Naperville, IL 60563-7901 -
Endeavor Health Medical Group
1200 S. York St., Suite 2000 Elmhurst, IL 60126-5634
Medical School
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2008Michigan State University (East Lansing)
Residencies
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2011Internal MedicineYale University School of Medicine (Connecticut)
Fellowships
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2015GastroenterologyRush University Medical Center
Board certifications
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2015GastroenterologyAmerican Board of Internal Medicine
Reviews (20)
July 31, 2026
Dr. Kumar is an outstanding and compassionate physician.
July 24, 2026
I received great professional advice from my provider. He's awesome
June 14, 2026
Dr. Kumar is very kind and compassionate. He takes the time to listen and addresses any concerns I have.
April 25, 2026
He is one if not the best doctors I go to and I go to a lot of doctors!
April 15, 2026
Dr. Kumar is an excellent doctor, very knowledgeable and thorough. He explained my condition simply and effectively .. Never rushed! I would recommend him to all my friends and family.
March 28, 2026
Knowledgeable and caring person who suits for the profession.
January 27, 2026
Genuinely a really nice physician. Personable. Honest and thorough! Always has advice for improving my quality of life.
January 17, 2026
Made me feel very comfortable during the visit and eased any worries I had.
December 19, 2025
Dr. Kumar was so friendly and kind, very informative and also listened well.
December 15, 2025
Fully satisfied with last visit
November 26, 2025
Top notch care. Very kind, compassionate and considerate staff. I couldn't ask for more.
September 19, 2025
Dr Kumar was very nice and approachable and explained everything in a way I could understand
September 5, 2025
Great experience with Dr. Kumar. He is knowledgeable and direct with his medical opinions.
August 29, 2025
Very nice and professional
August 15, 2025
Took the time to listen to all my concerns and made recommendations I felt corresponded to my needs
August 14, 2025
Love Dr. Kumar
August 9, 2025
Dr Kumar is one of the best dr. He takes his time making sure I understood everything thats going on and he addressed all my concerns
August 1, 2025
Dr. Kumar is a lovely man with outstanding bedside manner and medical knowledge. He was kind and explained everything clearly. I trust him with my healthcare and look forward to seeing him again.
June 7, 2025
Dr Kumar is great person, listener, cordial,listens to his patients and the advice and treatment are just super
March 20, 2025
Dr. Kumar is an excellent GI doctor, both my daughter and I see him. I had suffered with chronic diarrhea since 20 years of age and 37 years later he was finally able to get to the root cause of it and I feel like a new person. My daughter is doing so much better as well and really glad he was able to diagnose her properly at her age (22) so she didn't have to go through what I went through for years.
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