General Medical Practice Houston, TX

High-Quality Care from Leading Specialists

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Expert Treatment for Colon & Rectal Diseases

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The Hemorrhoid Center Can Help You

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Specialist Care Close to Home

Houston Colon and Rectal Surgery is a specialty practice with offices all throughout North Houston and West Houston, TX. Our facilities feature a skilled team of colorectal surgeons who are proud to serve the Greater Houston community. Our team makes it a point to stay up to date with the latest advancements in the medical industry in the way of surgical techniques, treatments, and diagnostics. If you've noticed any warning signs or symptoms, such as abdominal pain, rectal bleeding, constipation, severe diarrhea, or other digestive issues, contact one of our offices to discover the cause and to learn more about your options.

About Us

Always Accepting New Patients

Our skilled team of board-certified surgeons is pleased to see men and women of all ages with or without a referral from their general practitioner. When you experience abnormal bowel movements, pain, or unexplained bleeding, it's essential to have your condition monitored by a doctor with years of specialist training in the discipline of colon, rectal, and anal disorders.

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Our Board-Certified Doctors

Houston Colon and Rectal Surgery is proud to employ a talented and experienced team of board-certified surgeons who specialize in the treatment and management of a range of colorectal conditions. Drs. Khawaja Azimuddin, Tal Raphaeli, and Jean Knapps all bring their unique skill sets to the table to identify and address many diseases and disorders that affect a number of individuals. These include colorectal cancer, Crohn's disease, ulcerative colitis, hernias, anal fissures, hemorrhoids, hernias, bowel obstructions, constipation, and more. We invite you to read about our practitioners to learn more about their qualifications, contributions, and patient ideologies.

Our Services


"I am really grad, I was referred to Dr Azimudin by my PCP. The surgery went well and was fast. I couldn't be happier. I highly recommend."



"I started having extreme pain and had suffered for 2 weeks. I had gone to another Dr. who prescribed some medication but the issue kept getting worse. It was so bad I went to the ER and they were no help. I called Dr. Azimuddin and he got me in the next day. I was in so much pain that he had me admitted to the hospital that day. He conducted surgery the following day and that took care of the issue. That was 6 days ago and I am feeling great and have no pain. I was introduced to Dr. Azimuddin in a very bad situation which he handled extremely well. I can not recommend him enough."



"Very great doctor"



"I was referred by my dr for hemmoroids i made a appt and arrived one week earlier than my scheduled date and was told that i could be seen. Dr R listened to my concerns and preformed a exam and Concluded that I indeed needed surgery. I had to reschedule and they were very accommodating. On the of it did take a bit of time to get to the surgery room. I did see the dr before during the nurse visit. As I was wheeled off to surgery i was repositioned and woke up in aftercare. There was a bit of pain and i was given som morphine. This did not work as well as the tylenol 3. The ibuprofen did the job so i never really took the tylenol 3 again. Although a uncomfortable procedure it's not a bad experience. Very nice dr Thank you."



"I was told I needed surgery by another Doctor on a Thursday, met with Dr. Azi on Monday and had surgery on Wednesday. He is kind and compassionate. I was immediately comforted by his confidence and his knowledge. When I went into my preop appointment at the hospital, I was further comforted by the nurse who said she used to work with him. She told me "he is the best at what he does". Other doctors I have been working with all knew him and have had nothing but nice things to say about him. He is not only a great doctor; he is a very nice person. He explains everything and is very comforting. I would recommend him to anyone. What a great guy!"




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Learn More

At Houston Colon and Rectal Surgery, we strive to make every aspect of your colorectal care as simple and easy as possible. To learn more about your financing options, insurances we accept, and our skilled staff, browse the links below. We welcome you to contact one of our North Houston or West Houston, TX offices if you have any questions!


Vintage and Tomball

20207 Chasewood Park Dr, Ste 203

Houston, Texas 77070


Kingwood and Humble

18955 N Memorial Dr, Ste 530

Humble, TX 77338


The Woodlands

17189 I-45 S, Bldg 2, Ste 275

The Woodlands, TX 77385



1125 Cypress Station Dr, Ste G3

Houston, TX 77090