Industry Leading Gastroenterologists

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Our Legacy

GI Alliance’s legacy of caring for the communities we serve is built on a solid foundation of physician excellence. Dr. James Weber is the visionary founder and CEO of GI Alliance. He strives to ensure that GI Alliance locations provide the best GI care to patients nationwide. This is accomplished through each and every patient experience.

About Us

Thousands of happy patients

Nice atmosphere great personal no waiting . Great!!

M.F. Google

Dr. Ahmed is kind and very thorough. He explained everything clearly and made me feel well taken care of when no one else had.

E.L. Google

Easy check in. Polite, professional staff. Very clean and efficient. Did not to wait long for my appointment.

C. Google

Shelley Cochran had been a superior caregiver to me for new throat issues. Working with terrific Dr Pascall creates perfect care team for me!

J.J. Google

I was given an appointment from a gastrologist in San Angelo Texas for October 2024 and I decided to reach out to a gastrologist here in the Austin area and I was able to get in within weeks and I had my colonoscopy I do not have cancer and I am so happy I am the happiest! The staff was amazing through sitting at the appointment registration for my first consultation the doctor was amazing he was very professional he explained everything in detail I mean it doesn't get better than that and my registration to the center that I was going to go I was super fast so I'm just a happy customer I'm very blessed I highly recommend this company to anyone that would need a colonoscopy due to the Cologuard giving a false positive. Have a blessed last life take care of yourselves!

V. Google


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Gastroenterology Conditions

Colonoscopy Screening


Clinical Trials

Why Choose a GI Alliance Provider?

Our patients come first. GI Alliance physicians strive to be your partner in GI health. As the leading gastroenterology practice in the country, we have the resources and experience to find a solution to improve your life. We look forward to earning your trust.


About GI Alliance

Colonoscopy: The Gold Standard for Colon Cancer Detection & Prevention

Colonoscopies provide preventative measures and are far more conclusive than at-home testing because it prevents cancer by identifying and removing over 95% of dangerous polyps during the procedure. Your provider can also collect tissue samples for pathology testing to further determine if cancerous cells are present. As a result, colonoscopies are considered the gold standard for colorectal cancer detection and prevention.


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Inflammatory Bowel Disease: Get the Facts

Inflammatory bowel diseases (IBD), including Crohn's Disease and ulcerative colitis, affect approximately 1.6 million Americans, many before age 35. Over 80,000 children in the US are living with IBD, and an estimated 70,000 new cases among children and adults are diagnosed each year. These chronic, life-long conditions can be treated – but not cured.

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Chronic Care Management

Infusion Services

About Home Screening

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