About Andrew Su, MD

Board Certified Gastroenterologist

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Andrew Su, M.D.

To all my patients,

I'm retiring from clinical practice on September 1st, 2022. It's been 26 years since I joined Gateway Gastroenterology, and it has been my privilege to be part of the Gateway team and to serve as your gastroenterologist. Caring for you has been the most rewarding part of my career. That is why it is with mixed emotions that I make this announcement. Over the years you have entrusted me with your health and I am honored to have had the privilege to care for you and your families.

Looking forward, we have many talented physicians at Gateway that are available to provide for your care. In particular, I'd call attention to our younger physicians who are extremely well trained, experienced, and will be in practice for years to come. Please consider transitioning your care to ne of the following: Dr Jason Haas, Dr Rajeev Ramgopal, or Dr Jonathan Seccombe. They are not only outstanding physicians but truly caring and compassionate people whom I am confident you'll like.

In the event you would need or want to have your records forwarded elsewhere, my staff will be available to assist you with this.

In closing, I want you to know that your trust in me over these years has been greatly appreciated. Many of you have become not only patients, but dear friends and I will miss seeing all of you.

Please accept my best wishes.


Andrew Y. Su, M.D.

Andrew Su, MD, is a board-certified gastroenterologist at Gateway Gastroenterology, in Chesterfield, Missouri. He is committed to providing patients with outstanding gastroenterological care. 

Dr. Su has been with the Gateway Gastroenterology team since 1996 and is a member of the American Society of Gastrointestinal Endoscopy. He is very interested in the technical advances in the field of endoscopy, and considers himself a life-long learner. He is committed to education, allowing him to treat patients with the most cutting-edge care. 

Gateway Gastroenterology

Main Office – Chesterfield:
121 Saint Luke’s Center Drive, Suite 406, Building A
Chesterfield, MO 63017
Phone: 314-529-4900 | Fax: 314-434-2679 | After-Hours Exchange: 855-224-7875

Gateway Endoscopy Center: 314-336-1130
St. Luke’s Hospital – GI Lab (East Medical Building): 314-542-4863
St. Louis Multispecialty Surgery Center: 636-779-0079