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John Tsai, MD

John K. Tsai, MD

Diplomate, American Board of Internal Medicine
Board Certified in Gastroenterology

Location:

Lakeway - Bee Cave , Marble Falls , Westlake

Additional Language(s):

Taiwanese

Meet Dr. John Tsai

Dr. John Tsai is a board-certified and fellowship-trained gastroenterologist with subspecialties in IBD, nutrition, liver disease, and advanced endoscopic therapeutics (ERCP). Prior to joining Austin Gastro in 2017, he spent nine years in private practice in Tucson, Arizona.

Dr. Tsai completed his fellowship training in gastroenterology and nutrition at Memorial Sloan-Kettering Cancer Center. He completed his residency training at New York-Presbyterian Hospital/Weill Cornell Medical Center and received his medical degree from Northwestern University.

Dr. Tsai is married with a young daughter. He is an avid fly-fisherman and poker player, and he enjoys reading the works of Ernest Hemmingway, playing the piano, and traveling with his wife. He is also proficient in Taiwanese. Dr. Tsai has been selected perennially as a Top Doctor in Austin Monthly magazine.

Education

Medical Degree: Northwestern University Feinberg School of Medicine, Chicago, IL
Residency: Internal Medicine, New York-Presbyterian Hospital/Weill Cornell Medical Center, New York, NY
Fellowship: Gastroenterology and Nutrition, Memorial Sloan-Kettering Cancer Center, New York, NY

Associations

American Society for Gastrointestinal Endoscopy (ASGE)
Texas Society of Gastroenterology and Endoscopy (TSGE) – Board Member and Fellowship Symposium Director
Travis County Medical Society

Associated Providers

Britney Roman Dann, PA-C

Testimonials

“I was very impressed by Dr. Tsai’s approach. He showed a lot of interest in preventive care, and I was able to talk through a few questions that most doctors, in my opinion, don’t spend much time on. I’ll definitely use Dr. Tsai in the future.” – Greg (Google review)

“Dr. Tsai has been seeing my college-aged son for an ongoing GI condition that had made my son very ill. He is very thorough and explained the condition and treatment plan. He made him feel very comfortable and took the time to answer all our questions. My son is doing better, and the doctor is so encouraging and kind in all follow-up appointments.” – Kathy (Healthgrades)

“Dr. Tsai is very thorough and explores options other providers may miss. He listens closely and when presenting treatments, he explains clearly to the patient. He is knowledgeable and personable, both traits you want in a doctor.” – Gary (Google review)

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Our Blog

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, In short, Endoscopy is not needed for all heartburn cases, but it becomes necessary when symptoms persist despite treatment or when complications are suspected. The procedure helps diagnose serious conditions like Barrett’s esophagus, ulcers, and esophagitis that can cause chronic heartburn. Most people with occasional heartburn can manage symptoms effectively with lifestyle changes and

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Congratulations to Austin Gastroenterology’s 2025 Super Doctors!

, Recognizing Excellence in Digestive Health Across Austin & Central Texas Austin Gastroenterology is proud to celebrate our physicians who have been recognized on the 2025 Texas Super Doctors List, an honor reserved for outstanding physicians who have earned the respect of their peers, demonstrated leadership in their specialty, and delivered exceptional patient care year

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Can Hepatitis B Lead to Hepatitis C?

, In short, No, hepatitis B cannot lead to or cause hepatitis C as they are separate viral infections caused by different viruses However, shared risk factors like needle sharing mean some people can become infected with both viruses simultaneously or sequentially Co-infection with both hepatitis B and hepatitis C can accelerate liver damage and

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Austin Gastroenterology offers dedicated care for various gastrointestinal and liver conditions through a range of in-office procedures, diagnostic and screening procedures, advanced endoscopic procedures in hospital, and other specialized GI care services. We have 18 offices throughout the greater Austin area, including GI care clinics, endoscopy centers, and infusion centers.