Expert GI Care Serving Houston & Greater Houston

Gastroenterologist in Houston, TX – GI Specialist Serving Greater Houston

Looking for a gastroenterologist in Houston, TX? United Gastroenterology Associates provides comprehensive digestive and liver care for patients throughout Houston, Greater Houston, Cypress, Katy, and surrounding communities.

Led by Dr. Muhammad Ali Khan, MD, FACP, FASGE, our practice provides evaluation, diagnosis, and treatment for a broad range of gastrointestinal and liver conditions. From persistent abdominal pain, acid reflux, and changes in bowel habits to colon cancer screening, endoscopy, colonoscopy, and specialized liver care, our goal is to provide evidence-based, personalized gastroenterology care.

We serve Houston-area patients from two conveniently located offices:

Cypress GI Office

21216 Northwest Freeway, Suite 640
Cypress, TX 77429

Katy GI Office

23920 Katy Freeway, Suite 555
Katy, TX 77494

Call (346) 340-4414 to schedule an appointment.

If you are searching for a gastroenterologist in Houston, GI doctor Houston, GI specialist near Houston, or a digestive health specialist serving the Greater Houston area, our team can evaluate your symptoms and help determine the appropriate next steps.

Call Now: (346) 340-4414

Board-Certified Gastroenterologist Serving Houston and Greater Houston

Digestive symptoms can have many possible causes. Persistent stomach pain, heartburn, bloating, constipation, diarrhea, rectal bleeding, difficulty swallowing, or abnormal liver tests may require evaluation by a gastroenterologist.

United Gastroenterology Associates provides comprehensive care for patients with conditions affecting the:

Esophagus
Stomach
Small intestine
Colon and rectum
Liver
Gallbladder
Bile ducts
Pancreas

Our practice is led by Dr. Muhammad Ali Khan, MD, FACP, FASGE, a gastroenterologist and hepatologist with experience in clinical and academic medicine.

Learn more about Dr. Muhammad Ali Khan, Gastroenterologist and Hepatologist.

Common Gastritis Symptoms

Upper stomach pain, burning stomach pain, sour stomach, nausea, bloating after eating, indigestion, feeling full quickly, and loss of appetite are common signs of gastritis.

What Causes Gastritis?

Common causes include H. pylori infection, frequent NSAID pain relievers, alcohol, bile reflux, and autoimmune gastritis, among other digestive conditions.

When to See a GI Doctor

See a gastroenterologist if symptoms are persistent, worsening, or not improving, or if you have a history of ulcers or H. pylori or long-term NSAID use with stomach pain. Need Consultation!

Board-Certified Gastroenterology Excellence

Gastroenterologist in Greater Houston

Dr. Muhammad Ali Khan, MD, FACP, FASGE

At the heart of our practice is Dr. Muhammad Ali Khan, a highly respected, board-certified gastroenterologist and hepatologist with extensive experience in diagnosing and treating diseases of the digestive system and liver.

Dr. Khan earned his medical degree from Dow Medical College, completed his Internal Medicine residency at the University of Toledo, and went on to complete advanced fellowship training in Gastroenterology and Hepatology at the University of Tennessee.

Throughout his distinguished career, Dr. Khan has combined outstanding clinical care with academic excellence. He previously served as an Associate Professor at MD Anderson Cancer Center, where he participated in the care of patients with complex gastrointestinal conditions and gastrointestinal cancers while contributing to medical education and research.

Dr. Khan has authored more than 100 peer-reviewed scientific publications and has presented research at national and international medical conferences. His work has contributed to clinical practice guidelines and continues to influence the field of gastroenterology.

As a Fellow of both the American College of Physicians (FACP) and the American Society for Gastrointestinal Endoscopy (FASGE), Dr. Khan remains committed to delivering evidence-based, patient-focused care using the latest advancements in digestive medicine.

. He is an active member of several professional organizations, including the American College of Gastroenterology and the Texas Medical Association. Learn more..

Consult with Our GI Specialist

Your Digestive Health Starts Here

What Does a Gastroenterologist Treat?

A gastroenterologist is a physician who specializes in diagnosing and managing conditions affecting the digestive system and related organs.

If you are searching for a GI doctor in Houston, you may need evaluation for symptoms involving the digestive tract or for a known gastrointestinal or liver condition.

Common concerns we evaluate include:

Abdominal pain
Acid reflux and GERD
Heartburn
Bloating and excessive gas
Constipation
Chronic diarrhea
Nausea and vomiting
Blood in the stool
Rectal bleeding
Difficulty swallowing
IBS
Inflammatory bowel disease
Crohn's disease
Ulcerative colitis
Gastritis
Liver disease
Fatty liver disease
Abnormal liver enzymes
Pancreatic disorders
Gallbladder and biliary disorders

For a broader overview, visit our digestive health services or gastrointestinal symptoms and conditions.

When Should You See a Gastroenterologist?

Some digestive symptoms improve on their own, while persistent, recurring, or worsening symptoms may need further medical evaluation.

Consider seeing a gastroenterologist serving Houston and Greater Houston for concerns such as:

Persistent abdominal or stomach pain
Frequent or severe heartburn
Ongoing acid reflux
Difficulty swallowing
Persistent nausea or vomiting
Changes in bowel habits
Chronic constipation
Chronic diarrhea
Blood in the stool
Rectal bleeding
Unexplained bloating
Unexplained anemia
Abnormal liver tests
Persistent digestive symptoms without a clear cause
A need for colorectal cancer screening

The appropriate evaluation depends on your individual symptoms, medical history, medications, age, family history, and previous testing.

Houston-Area Gastroenterology You Can Trust

Why Houston-Area Patients Choose a Gastroenterology Specialist

Choosing a gastroenterologist involves finding a physician who can appropriately evaluate symptoms and determine the right diagnostic and treatment approach.

At United Gastroenterology Associates, our approach includes:

Comprehensive Evaluation

Digestive symptoms can have multiple possible causes. Evaluation considers the patient's symptoms, medical history, medications, previous testing, and relevant risk factors.

Personalized Care

Diagnostic testing and treatment should be based on the individual patient rather than assuming every digestive symptom requires the same procedure.

Preventive GI Care

Preventive care and appropriate screening can be an important part of digestive health, including colorectal cancer screening when recommended based on current medical guidelines and individual risk factors.

Specialized Digestive and Liver Care

Our practice provides care across a broad range of gastrointestinal and hepatology concerns.

Learn more about our gastroenterology services.

Compassionate Digestive Care for Greater Houston

Looking for a GI Doctor Near Houston?

Better Digestive Health Begins with Expert Care

If you searched for:

Gastroenterologist Houston TX
Gastroenterologist in Houston
GI doctor Houston
GI specialist Houston
Gastroenterologist near Houston
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our practice provides gastroenterology care for patients throughout the Greater Houston area from our Cypress and Katy offices.

The right next step depends on your symptoms and reason for seeking care.

Whether you need evaluation for persistent digestive symptoms, management of an ongoing GI condition, specialized liver care, or preventive screening, our team can help guide you through the appropriate evaluation process.

Call (346) 340-4414

Acute Gastritis

Sudden stomach inflammation, often from infection, medications, alcohol, or illness.

Chronic Gastritis

Inflammation that develops slowly or keeps returning over time.

H. pylori Gastritis

Gastritis caused by Helicobacter pylori bacteria infecting the stomach lining.

Reactive & Autoimmune Gastritis

Irritation from NSAIDs, alcohol, or bile reflux, or an immune attack on the lining.

Specialized Gastroenterology for Houston-Area Patients

Gastroenterology Services for Houston-Area Patients

United Gastroenterology Associates provides a range of diagnostic, preventive, and treatment services for digestive and liver conditions.

Colonoscopy and Colon Cancer Screening

Colonoscopy may be recommended for colorectal cancer screening or for evaluation of certain lower gastrointestinal symptoms.

Our practice provides colonoscopy services for eligible patients.

Learn more about:

Upper Endoscopy and EGD

An upper endoscopy, also called an EGD, allows a gastroenterologist to examine the upper digestive tract, including the esophagus, stomach, and duodenum.

Depending on your symptoms and medical situation, endoscopy may be considered for concerns such as persistent reflux, difficulty swallowing, upper abdominal symptoms, nausea, vomiting, or other upper GI conditions.

Learn more about:

GERD and Acid Reflux Care

Persistent acid reflux may be more than occasional heartburn.

A gastroenterologist can evaluate symptoms of GERD and determine whether further testing, lifestyle changes, medication management, or another treatment approach may be appropriate.

Common symptoms can include:

Frequent heartburn
Acid regurgitation
Sour taste in the mouth
Chest discomfort associated with reflux
Difficulty swallowing
Persistent throat irritation

Learn more about GERD and acid reflux treatment.

IBS and Chronic Digestive Symptoms

Irritable bowel syndrome, or IBS, can cause symptoms including abdominal discomfort and changes in bowel habits.

Because digestive symptoms can have multiple possible causes, an appropriate medical evaluation is important before assuming symptoms are caused by IBS.

Learn more about IBS and IBS treatment.

Liver and Hepatology Care

Our practice also provides evaluation and management for a range of liver conditions.

Patients may seek a gastroenterologist or hepatology specialist for concerns including:

Fatty liver disease
Abnormal liver enzymes
Chronic liver disease
Hepatitis
Cirrhosis
Other liver-related concerns

Explore:

Conditions Our GI Specialist Can Evaluate

Our gastroenterology practice evaluates a wide range of digestive conditions.

Common Digestive Conditions

Patients may seek care for:

Acid reflux and GERD
Gastritis
IBS
Constipation
Diarrhea
Bloating
Nausea and vomiting
Hemorrhoids
Blood in the stool
Difficulty swallowing

Explore relevant information:

Inflammatory and Chronic GI Conditions

Our practice also provides evaluation and management for conditions such as:

Crohn's disease
Ulcerative colitis
Other forms of inflammatory bowel disease
Celiac disease
Pancreatic disorders
Biliary disorders

Learn more about:

Advanced GI Procedures Available

Depending on your medical needs, evaluation may include specialized procedures and diagnostic testing.

Services available through our gastroenterology practice include:

Colonoscopy
Upper endoscopy / EGD
Capsule endoscopy
ERCP
Flexible sigmoidoscopy
Esophageal dilation
pH monitoring
Anorectal manometry
FibroScan and liver evaluation

Explore our treatments and procedures.

Additional resources:

Gastroenterology Care Serving Houston from Cypress and Katy

Important location information: United Gastroenterology Associates has physical office locations in Cypress and Katy, Texas, and serves patients from the Greater Houston area.

If you are searching online for a Houston gastroenterologist, please choose the office location that is most convenient for your appointment.

Cypress Office

United Gastroenterology Associates
21216 Northwest Freeway, Suite 640
Cypress, TX 77429

The Cypress office provides convenient access for patients in Cypress and nearby Northwest Houston communities.

For more information, visit our Cypress Gastroenterologist page.

Katy Office

United Gastroenterology Associates
23920 Katy Freeway, Suite 555
Katy, TX 77494

The Katy office provides convenient access for patients in Katy and surrounding West Houston communities.

For more information, visit our Katy Gastroenterologist page.

For complete office information, visit our Locations page.

Testimonial

Patient Reviews

Our practice is proud to receive consistently positive feedback for compassionate care, thorough evaluations, and excellent patient communication.

★★★★★

"Dr. Khan took the time to explain everything clearly. I never felt rushed and finally understood the cause of my digestive problems."

★★★★★

"My colonoscopy experience was much easier than I expected. The staff made me feel comfortable from beginning to end."

★★★★★

"Professional, caring, and extremely knowledgeable. I highly recommend Dr. Khan for anyone experiencing digestive issues."

★★★★★

"Scheduling was easy, the office was organized, and Dr. Khan answered every one of my questions."

★★★★★

"Excellent experience. I would absolutely recommend United Gastroenterology to family and friends."

Our greatest compliment is the trust our patients place in us by referring their friends and family members for digestive care.

Take the Next Step Toward Digestive Answers

Schedule an Appointment with a Gastroenterologist Serving Houston and Greater Houston

If you are experiencing persistent digestive symptoms, need evaluation for a known gastrointestinal or liver condition, or are seeking information about appropriate GI screening, schedule a consultation with United Gastroenterology Associates.

We serve patients throughout the Greater Houston area from our two conveniently located offices:

Cypress

21216 Northwest Freeway, Suite 640
Cypress, TX 77429

Katy

23920 Katy Freeway, Suite 555
Katy, TX 77494

Call (346) 340-4414 to schedule your appointment.

FAQs

Frequently Asked Questions

Where is your gastroenterology office located?

United Gastroenterology Associates has office locations in Cypress and Katy, Texas, and serves patients from throughout the Greater Houston area.

Cypress: 21216 Northwest Freeway, Suite 640, Cypress, TX 77429

Katy: 23920 Katy Freeway, Suite 555, Katy, TX 77494

Do you serve patients from Houston?

Yes. Patients from the Greater Houston area can seek gastroenterology care at our Cypress or Katy locations. The most convenient office depends on where you live and the type of appointment you need.

What does a gastroenterologist treat?

A gastroenterologist specializes in conditions affecting the digestive system and related organs, including the esophagus, stomach, intestines, colon, rectum, liver, pancreas, gallbladder, and bile ducts.

When should I see a GI doctor?

You may need a gastroenterology evaluation for persistent or recurring digestive symptoms, including abdominal pain, ongoing reflux, difficulty swallowing, changes in bowel habits, bleeding, or abnormal liver tests.

Do you perform colonoscopies?

Colonoscopy services are available when medically appropriate. Visit our Colonoscopy in Cypress or Colonoscopy in Katy pages for more information.

Do you perform upper endoscopy?

Our gastroenterology services include upper endoscopy/EGD when medically appropriate. Learn more on our EGD and Endoscopy page.

Can I see a gastroenterologist for liver problems?

Yes. Our practice provides gastroenterology and hepatology care. Learn more about liver and hepatology services.

Do you accept insurance?

Visit our Insurance Information page for current information, or contact the office with questions about your coverage.