Gastroenterology San Antonio, TX

Trusted Providers for Gastrointestinal Health

Meet Our Providers

Compassionate Care for GI Conditions

Learn More

Innovative GI Treatments in San Antonio, TX

Learn More

Find Your Local Gastroenterologist

My GI Journey

Share your own GI journey! With your computer, phone, or tablet, you can easily create a video testimonial describing your path to better GI health. Click below to begin!

Record Your JourneyView Videos

Hundreds of happy patients

Dr. Serna is very professional and compassionate when speaking to patients. I felt very comfortable talking to him about several issues.

N.T. Google

Dr Bullock is an outstanding doctor, he's been treating my UC and it's been in remission.

P.N. Google

I saw Dr Ayyar about 3 weeks ago. I was a new patient as my previous Dr. had retired. He is a wonderful doctor who took his time explaining everything to me. I feel blessed to have him as my new gastroenterologist. skp

S.P. Google

Dr. Belinda Ramirez and her staff were awesome during my care, before and after my procedure. I highly recommend Dr. Ramirez for your GI care. She is very knowledgeable in her profession, very kind, and just a great person in general. Thank you again Dr. Ramirez.

R.M. Google

Dr. Bullock was great in explaining why I'm getting a colonscopy.

R.E. Google


Total Reviews


Average Rating

Gastroenterology Conditions


Gastroenterology Services

Top Rated Gastroenterologists


Patient Reviews

Your gastroenterology needs are at the forefront when you choose our team at San Antonio Gastroenterology Associates. We’re a network of skilled and experienced GI professionals who are dedicated to getting you connected with the right resources and treatments. Our team looks forward to becoming a trusted source for your GI needs throughout the San Antonio, TX area. Improve your digestive health today and schedule an appointment.

About Us

An optimal way to detect and prevent cancer is to undergo a colonoscopy before cancer grows to a critical stage. Over 95 percent of precancerous polyps are identified during a colonoscopy and are removed during the procedure. Tissue samples from the polyps are sent to pathology to determine any signs of cancer. A colonoscopy is a preventative measure that safeguards your GI health by eliminating any polyps before they progress to a severe stage. A colonoscopy is a gold standard for both the prevention and detection of colorectal cancer.

Learn More

Crohn’s disease and ulcerative colitis are among the most common types of Inflammatory Bowel Diseases (IBD). Many Americans are affected, with around 1.6 million currently impacted by these diseases. IBD is a chronic condition that’s typically diagnosed in patients before the age of 35. As a chronic condition, it can be treated but not completely cured. There are approximately 70,000 new cases in children and adults detected each year.

Learn More

Prep Forms

About Home Screenings

Patient Portal