Welcome to Bay Area Gastroenterology

At Bay Area Gastroenterology, our dedicated team of gastroenterologists is committed to providing the highest standard of care in the field of gastrointestinal health. With a focus on progressive treatments and state-of-the-art procedures, we are equipped to address a wide range of digestive conditions and symptoms, including but not limited to colonoscopy, endoscopic ultrasound, and many others. Our goal is to help our patients achieve and maintain optimal digestive health, and we are dedicated to providing the personalized care and attention that each individual deserves. Whether you are facing a minor discomfort or a serious digestive issue, we are here to help and support you every step of the way.

We also offer weight loss services including a unique, medically based weight loss program dedicated to achieving a healthier metabolism. 

See what our patients say…

Best Doctor Yet

Dr. Aditi is the best gastroenterologist I know. He treated my abdominal pain and I started feeling better very quickly. He seems caring and knowledgeable. This review is a thank you for a great job.

Anhir Abel

Pleasant and Helpful

The office was very nice, I waited for only a minute or two before being taken to an exam room and then seen by the doctor. He was very kind, explained everything fully and I feel very comfortable with his plan for addressing the issue. I would absolutely recommend Dr. Aditi.

Roger Blakely

I Love This Doctor!

I have been to this clinic a few times and it has always been hassle-free. The staff is welcoming and friendly and Dr. Aditi is great. He’s very thorough and takes the time to explain everything properly.

Helen Simmons

Great Experience

I have been seeing Dr. Aditi for several months and he has been great! Very knowledgeable and caring doctor. The facility is also in a very convenient location and very clean. The staff is also very nice and helpful! I would recommend this doctor’s office!



A d0e3b036

Dr. Stefan Chin

Dr. Stefan J. Chin obtained his medical degree from Columbia University in New York City in 1993. Afterward, he stayed in New York and completed his Internal Medicine residency at Columbia University Medical Center in 1996. Moving to California, he completed his fellowship training in Gastroenter…
D 61d5a8b6

Dr. Mark Tsuchiyose

Dr. Mark Tsuchiyose graduated from USC School of Medicine in 1983 and completed his Internal Medicine residency at Huntington Memorial Hospital in Pasadena, California. He then completed his Gastroenterology fellowship at LAC/USC Medical Center and returned for his Hepatology fellowship at Huntin…
B 7a6cacb4

Dr. Rowena Garcia-Chuapoco

Dr. Rowena Garcia-Chuapoco graduated from the University of Santo Tomas Faculty of Medicine and Surgery in Manila, Philippines in 1988. She subsequently completed her internship at Illinois Masonic Medical Center in Chicago. Next, she completed her Internal Medicine residency and Gastroenterology…
E 66287639

Dr. Anupam Aditi

Dr. Anupam Aditi obtained his medical degree from the Baylor College of Medicine in 2009. He subsequently completed his Internship and Internal Medicine Residency in 2012 from Washington University in Saint Louis. From 2012-2013, Dr. Aditi worked as a Hospital Medicine doctor at University of Cal…