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Advanced Gastroenterology Associates of SA in San Antonio, Texas, is a leading provider and innovator in treating diseases of the gastrointestinal system. Board-certified gastroenterologist Muhammad Naeem, MD, and his team provide the highest standards of care in state-of-the-art facilities. Their philosophy is to use the best methods from both conventional and alternative medicine. 

This integrative approach offers patients more successful outcomes for a range of gastrointestinal disorders, including abdominal pain, ulcerative colitis, Crohn's disease, liver disease, gallbladder disease, colorectal cancer, gastroesophageal reflux disease (GERD), celiac disease, small intestinal bacterial overgrowth (SIBO), and irritable bowel syndrome (IBS).

Advanced Gastroenterology Associates of SA has superior endoscopy services and uses the most modern endoscopy equipment in existence, built by Olympus. 

Among the practice’s other technologically advanced services are sacral stimulation device implantation for incontinence, hepatobiliary endoscopy interventions, endoscopic retrograde cholangiopancreatography (ERCP), biologics transfusions for Crohn's disease and ulcerative colitis, and Bravo™ pH reflux testing system and manometry for GERD. 

Dr. Naeem and his staff carry out genetic counseling for familial and genetic polyposis syndromes, which can increase your risk of colon cancer. They also offer a screening service for colorectal cancer.

The personalized approach at Advanced Gastroenterology Associates of SA incorporates food allergies and microbiome manipulation along with immune system enhancement to optimize the treatment of digestive disorders and leaky gut. 

The practice also does clinical research into inflammatory bowel disease and collaborates with tertiary level institutions and centers of excellence. These include the world’s best cancer institutes, like The University of Texas MD Anderson Cancer Center in Houston, Texas, the University at Buffalo Clinical and Translational Research Center in Buffalo, New York, and Memorial Sloan Kettering Cancer Center in New York.

To schedule a consultation at Advanced Gastroenterology Associates of SA, call their office today or book an appointment online.

Mission Statement:


  • Provide compassionate healthcare with higher calling, besides modern medicine and cutting-edge knowledge

  • Help the needy, in urgent need of a remedy

  • Partner with patients and families for long term relationships for disease prevention and management

  • Inspire hope with good communication and constant contribution to patients' well being through integrated clinical practice

  • Use our best abilities and skills to treat digestive disorders, disease of liver, pancreas, and biliary tract



Open Access Colon Cancer Screening Available

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Immediate Appointments Available for People in Need of Urgent Care

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Accepted Insurances

For your convenience, Advanced Gastroenterology Associates of SA accepts most major insurance plans. Click on “View full list of companies” to see a list of commonly accepted insurances. This list is not entirely inclusive of all the plans we accept. For specific insurance plan inquiries, please contact the office .

Anthem Blue Cross
Blue Cross Blue Shield
United Healthcare



hospital affiliations

Endoscopies and Surgeries Performed at

Theda Oaks Ambulatory Surgical Center
19226 Stonehue, Suite 103,
San Antonio, TX 78258


Words from our patients

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    "He is a professional that answers your questions in layman terms."

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  • Vitals

    "He helped solve my problems and today I am much better, because he actually listened."

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  • Vitals

    "He is an excellent physician and a very nice person."

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