United Gastroenterology Associates is a gastroenterology and liver practice serving adults in Katy, Cypress, and west and northwest Houston, Texas. Led by board-certified gastroenterologist and hepatologist Dr. Muhammad Ali Khan, the practice evaluates and treats digestive and liver conditions, offering specialist care alongside diagnostic and preventive services.

Its scope includes concerns such as abdominal pain, reflux, bloating, constipation, diarrhea and rectal bleeding, as well as IBS, Crohn’s disease, ulcerative colitis, celiac disease, fatty liver disease and abnormal liver enzymes. Procedures and testing include colonoscopy and colorectal cancer screening, upper endoscopy (EGD), capsule endoscopy, FibroScan, flexible sigmoidoscopy, ERCP, esophageal dilation, pH monitoring and anorectal manometry. The clinic also offers urgent GI care, liver and hepatology services, infusion services, and guidance for patients preparing for procedures.

Insurance is accepted, and self-pay options are available. The practice welcomes new patients and provides patient education, procedure instructions, appointment requests and physician referrals through its Katy and Cypress locations