Is there a digestive disease doctor accepting insurance near Katy and Cypress?
Yes. United Gastroenterology Associates participates with many major insurance plans, including plans from Blue Cross Blue Shield, Aetna, Cigna, UnitedHealthcare, Humana, Medicare, TRICARE Prime, MultiPlan and Viva Health. Dr. Muhammad Ali Khan, MD, FACP, FASGE, sees patients in Katy and Cypress. Participation can vary from plan to plan, so coverage and benefits must be verified for your specific plan before your visit.
Three steps before your first visit
- Check the networkConfirm Dr. Khan is in network for your specific plan.
- Check referral rulesHMO and POS plans often need a referral from primary care.
- Check your costsAsk about deductible, copay and coinsurance for visits and procedures.
Which major insurance plans are accepted?
The practice participates with many major carriers. Because each carrier offers many plans, some plans may be in network and others may not. The table below summarizes the main carriers and what to check.
| Carrier or program | What to confirm |
|---|---|
| Blue Cross Blue Shield | Your specific plan and network name |
| Aetna | In-network status and referral needs |
| Cigna | Plan network and prior authorization for procedures |
| UnitedHealthcare | Plan type and specialist copay |
| Humana | Commercial or Medicare Advantage plan rules |
| Medicare | Screening vs diagnostic colonoscopy coverage |
| TRICARE Prime | Referral and authorization requirements |
| MultiPlan and Viva Health | Network access through your plan |
Do you need a referral to see a digestive disease doctor?
It depends on your plan type. PPO plans generally let you book a gastroenterologist directly, while HMO and POS plans, and many Medicare Advantage HMO plans, often require a referral from your primary care doctor. If you need one, ask your primary care office to send it before your appointment. Read do I need a referral to see a gastroenterologist and our physician referral page.
Do not wait on insurance paperwork if you have
- Vomiting blood or black, tarry stools
- Heavy rectal bleeding
- Severe abdominal pain
- Yellow skin or eyes with fever
- Food stuck in your throat
Go to the nearest emergency room. Emergency care does not require a referral.
Have symptoms like these?
Dr. Muhammad Ali Khan, a board-certified gastroenterologist and hepatologist, sees adults at our Katy and Cypress offices, serving patients across Greater Houston.
What questions should you ask your insurance carrier?
Call the member services number on your card and ask: Is Dr. Muhammad Ali Khan in network for my plan? Do I need a referral? Does my procedure need prior authorization? What is my deductible, copay or coinsurance? Are the facility, anesthesia and pathology lab in network? Is my colonoscopy covered as screening or diagnostic? These answers help you avoid unexpected bills.
Tip: Write down the date, the representative's name and a reference number for each insurance call. It helps if a claim question comes up later.
Are screening and diagnostic colonoscopies covered differently?
Often, yes. A screening colonoscopy for someone without symptoms is usually covered as preventive care, while a colonoscopy done because of symptoms such as bleeding, or for follow-up of past polyps, may be billed as diagnostic and subject to your deductible or coinsurance. Removing a polyp during a screening exam can also change billing. See screening vs diagnostic colonoscopy and colonoscopy cost with insurance.
What if you do not have insurance?
Self-pay options are available for patients without insurance or with high deductibles. Ask the office about self-pay pricing for visits and procedures. Learn more on our self-pay colonoscopy and self-pay endoscopy pages.
Get answers instead of guessing
Request a visit with Dr. Muhammad Ali Khan at our Katy and Cypress offices. Most major insurance plans are accepted and self-pay options are available.
What conditions does a digestive disease doctor treat?
Dr. Khan diagnoses and treats GERD, gastritis and ulcers, H. pylori, IBS, Crohn's disease and ulcerative colitis, celiac disease, gallbladder and pancreatic problems, fatty liver, hepatitis and cirrhosis, colon polyps and digestive cancers, and performs upper endoscopy, colonoscopy and FibroScan. Patients come from Katy, Cypress, Fulshear, Richmond and across Greater Houston. See the full insurance plans accepted page.
Key takeaways
- United Gastroenterology Associates is a digestive disease doctor accepting insurance from many major carriers.
- Plans include Blue Cross Blue Shield, Aetna, Cigna, UnitedHealthcare, Humana, Medicare and TRICARE Prime.
- Always verify your specific plan, because participation varies.
- HMO and POS plans often need a referral; PPO plans usually do not.
- Self-pay options are available.
Frequently asked questions
Does Dr. Khan accept Medicare?
Yes, the practice participates with Medicare. Medicare Advantage plans vary, so check your plan.
How do I check if my plan is in network?
Call the member services number on your card, or call the office at (346) 340-4414.
Will my insurance cover a colonoscopy?
Most plans cover screening colonoscopy as preventive care. Diagnostic colonoscopy may have out-of-pocket costs.
Do I need prior authorization for an endoscopy?
Some plans require it. Ask your carrier before your procedure.
What should I bring to my first visit?
Your insurance card, photo ID, referral if needed, medicine list and any prior test results.
Where to be seen in Katy and Cypress
United Gastroenterology Associates has two offices: Katy, at 23920 Katy Freeway, Suite 555, next to Memorial Hermann Katy Hospital, and Cypress, at 21216 Northwest Freeway, Suite 640, on US-290. Both are open Monday through Friday, 8:30 AM to 5:00 PM, closed for lunch from 12:00 to 1:30 PM, and serve patients from Fulshear, Richmond and across Greater Houston. Call (346) 340-4414 for either office.
Katy office
23920 Katy Freeway, Suite 555
Katy, TX 77494
Memorial Hermann Medical Plaza 1
Next steps
If you are dealing with digestive disease doctor accepting insurance or any ongoing digestive concern, a focused evaluation can find the cause and start the right treatment. Dr. Muhammad Ali Khan and the team at United Gastroenterology Associates see adults from Katy, Cypress, Fulshear, Richmond, Greater Houston and across Texas. Call (346) 340-4414 or request an appointment today.
If you have severe pain, vomit blood, pass black stools or have chest pain, call 911 or go to the nearest emergency room.



