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Houston-area patients · Katy & Cypress offices
Gastroenterologist Serving Houston: Care at Our Katy and Cypress Offices
Houston-area patients see Dr. Muhammad Ali Khan, MD, FACP, FASGE, at United Gastroenterology Associates' two offices: Katy, on the Katy Freeway (I-10) near the Grand Parkway, and Cypress, on the Northwest Freeway (US-290). There is no Houston office; both offices provide the same gastroenterology and liver care, including colonoscopy and upper endoscopy. Most major insurance is accepted, and self-pay options are available.
Muhammad Ali Khan, MD, FACP, FASGE
Sees patients at the Katy and Cypress offices
How Houston-Area Patients Get GI Care
United Gastroenterology Associates does not have a Houston office. Houston-area patients are seen at the Katy office (23920 Katy Freeway, Suite 555, in Memorial Hermann Medical Plaza 1) or the Cypress office (21216 Northwest Freeway, Suite 640). Both are open Monday through Friday and offer the same gastroenterology and liver care with the same physician.
You do not need a diagnosis before you come in. Dr. Muhammad Ali Khan evaluates digestive and liver symptoms, manages long-term conditions and performs colonoscopy and upper endoscopy. Most major insurance plans are accepted, and self-pay options are available.
Which Office Is Closer to You?
Both offices offer the same care, so choose the one that is easier to reach. Here is a quick guide by area.
Katy Office
23920 Katy Freeway, Suite 555, Katy, TX 77494, in Memorial Hermann Medical Plaza 1. Phone (346) 340-4414.
Cypress Office
21216 Northwest Freeway, Suite 640, Cypress, TX 77429, on US-290. Phone (346) 340-4414.
West Houston and the Energy Corridor
Memorial, the Energy Corridor, Alief and west Houston usually reach the Katy office fastest via I-10 or the Grand Parkway.
Northwest Houston and Cy-Fair
Jersey Village, Cy-Fair, Copperfield and the FM 1960 area usually reach the Cypress office fastest via US-290.
Central Houston
From the Galleria, the Heights or downtown, either office works; choose by traffic and the first available appointment.
Sugar Land, Richmond and Rosenberg
Patients southwest of Houston typically use the Katy office via the Grand Parkway.
Hours at both offices: Monday to Friday, 8:30 AM to 5:00 PM, closed 12:00 to 1:30 PM for lunch; last appointment 4:30 PM.
What Are You Experiencing?
Choose a symptom to learn what can cause it and how it is evaluated. Most visits start with a conversation and an exam, not a procedure.
Digestive Conditions We Treat
Dr. Khan diagnoses and manages conditions throughout the digestive tract and liver. Each link explains symptoms, testing and treatment.
Stomach and Upper GI
Acid reflux and GERD, gastritis, H. pylori, difficulty swallowing and nausea and vomiting.
Bowel Problems
Irritable bowel syndrome (IBS), constipation, chronic diarrhea and bloating.
Inflammatory Bowel Disease
Colon and Rectal
Colorectal cancer screening, colon polyps, rectal bleeding and hemorrhoids.
Pancreas and Gallbladder
Pancreatitis and pancreatic disorders and gallbladder and bile duct problems.
Not sure which applies? See all GI symptoms and conditions.
How a Visit Works for Houston-Area Patients
Getting care from Houston takes four steps, and any testing is arranged by the same practice that evaluates you.
1. Choose Your Office
Pick Katy or Cypress based on where you live or work. Both offer the same care with the same physician.
2. Request an Appointment
Call (346) 340-4414 or request an appointment online. Staff verify your insurance or explain self-pay options before the visit.
3. Meet Dr. Khan
Dr. Khan reviews your symptoms, history, medicines and earlier results, examines you and explains what may be causing your symptoms.
4. Testing in the Same Practice
If you need a procedure, such as colonoscopy or upper endoscopy, it is scheduled through the same practice, with preparation instructions.
Also available when your evaluation calls for it: capsule endoscopy, FibroScan, flexible sigmoidoscopy, esophageal dilation, esophageal pH monitoring, anorectal manometry and ERCP.
Insurance and Self-Pay Options
Most major insurance plans are accepted. Benefits vary by plan, so the office verifies your coverage before your visit. Call (346) 340-4414 to confirm your plan, or see accepted insurance.
No insurance? Self-pay options are available for consultations, digestive evaluations, follow-up visits and procedures such as colonoscopy and upper endoscopy when appropriate. Ask the office for current pricing.
Some plans, including many HMO plans, require a referral from your primary care physician. See do you need a referral to see a gastroenterologist?
Self-pay GI care · Self-pay colonoscopy · Accepted insurance
When to See a Gastroenterologist
Book a visit when digestive symptoms last more than a few weeks, keep coming back, do not improve with first-line treatment, or come with warning signs such as bleeding, trouble swallowing, unexplained weight loss or anemia. Adults should also discuss colorectal cancer screening from age 45.
For the full list of warning signs, read when to see a gastroenterologist and 7 digestive symptoms you shouldn't ignore.
When to seek emergency care
Call 911 or go to the nearest emergency room, not a clinic across town, for vomiting blood, heavy rectal bleeding, black or tarry stools with dizziness or fainting, severe or rapidly worsening abdominal pain, or signs of severe dehydration.
Frequently Asked Questions
Is there a United Gastroenterology office in Houston?
No. Houston-area patients are seen at the Katy office (23920 Katy Freeway, Suite 555) or the Cypress office (21216 Northwest Freeway, Suite 640). Both offer the same care with Dr. Muhammad Ali Khan.
Which office is closer to me?
West Houston, the Energy Corridor, Memorial and Alief usually reach the Katy office faster; northwest Houston, Jersey Village, Cy-Fair and the FM 1960 area usually reach the Cypress office faster. From central Houston, either works.
Where can Houston-area patients get a colonoscopy?
At either office. Both offer screening and diagnostic colonoscopy. Learn more about colonoscopy for Houston-area patients.
Do you accept most major insurance?
Yes. United Gastroenterology Associates accepts most major insurance plans and verifies your coverage before your visit. Call (346) 340-4414 to confirm your plan.
Can I see a gastroenterologist without insurance?
Yes. Self-pay options are available for consultations, evaluations and procedures. See self-pay GI care or call (346) 340-4414 for current options.
Can I get a colonoscopy without insurance?
Yes. Self-pay colonoscopy options are available when a colonoscopy is appropriate. See self-pay colonoscopy.
Do I need a referral?
It depends on your plan. Many HMO plans require a referral from your primary care physician; many PPO plans and Original Medicare do not. See the referral guide.
Are you accepting new patients?
Yes. New patients from across Houston are welcome at both offices. Call (346) 340-4414 or request an appointment online.
Schedule With a Gastroenterologist Serving Houston
See Dr. Muhammad Ali Khan at the Katy or Cypress office for digestive symptoms, liver concerns or a screening colonoscopy. Most major insurance is accepted, and self-pay options are available.
Sources
- U.S. Preventive Services Task Force. Colorectal Cancer: Screening. Final recommendation statement, 2021. uspreventiveservicestaskforce.org
This page explains how Houston-area patients can get care at our Katy and Cypress offices. It is general information and does not replace medical advice, diagnosis or treatment. For a medical emergency, call 911.