Welcome to

Zazen Surgery Center

Schedule Your Procedure Today

Top Outpatient Fully AAAHC-Accredited Ambulatory Surgery Center Serving the Greater Houston Metro Area

Offering same-day diagnostic endoscopic procedures for preventive, diagnostic, and therapeutic interventions

(281) 869-3011

Take a Tour of the Surgery Center

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image of the facility's main glass door entrance with a decal that says

curbside photo with flowers, green grass, a concrete sidewalk and a white car passing by the road

image of nurse's and staff in the office on their computer wearing a face-masks surrounded by office supplies

a photo of four medical professionals wearing sterile surgical gowns, face masks and scrub caps performing a procedure on a patient that's on the hospital bed.

image of a hallway with cubicles with hospital beds on both sides and a nurse station on the left.

medical endoscopes securely stored in the facility.

image of the nurse station with a sink, four office chairs facing a computer with two monitors each. paper works and medical records securely organized on the desk.

image of an emergency room cubicle with a bed in the middle surrounded by hospital equipments and a chair.

operating room show with two dome lights in the middle, surrounded by medical equipments, machine, monitors and computers.

image of a ward inside the hospital separated by walls and curtains.

Hospital Bed Head Panels for Oxygen Medical Air Vacuum Outlets

Location & Hours

25230 Kingsland Blvd, Suite 103

Katy, TX 77494

Monday - Friday 6:00 AM - 4:00 PM

Saturday: Appointment Only

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Pre-Registration

Save time and register online using our secure patient registration portal.

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Billing & Financial

Visit our secure payment portal to pay any co-payments, deductibles or balances from surgery.

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About Us

Customer-Oriented

We have a strong customer-oriented team with years of experience in the field of gastroenterology and are convenient for patients looking for safe alternatives to surgical procedures outside of the hospital setting.

AAAHC-Accredited Facilities

Zazen Surgery Center is one of the few AAAHC-accredited facilities in the region. We have a strong track record of quality-based care centered around current research-based safety standards and national quality metrics.

Our Mission

At Zazen Surgery Center, our mission is to focus on medical care centered around same-day diagnostic endoscopic procedures for preventive, diagnostic, and therapeutic interventions for patients experiencing acute upper and lower gastrointestinal problems.

More About Us

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Our Services

Preventive Procedures

Screening Colonoscopy

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Diagnostic Procedures

Diagnostic Colonoscopy, Anoscopy, Proctoscopy, Upper Endoscopy, Pill Camera Endoscopy

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Therapeutic Interventions

Forceps Polypectomy, Snare Polypectomy, Luminal Dilation, Endoscopic Mucosal Resection, Hemorrhoid Banding

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We Help you Afford the Care You Need and Deserve

Zazen Surgery Center accepts most major insurance plans and will work with you to help you understand your benefits.

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Patient Testimonials

"I don't have enough time and/or space to talk about why this place is amazing. I just had my very first colonoscopy done here and I was a bit nervous. They put me right at ease. From the nurses to the anesthesiologist to the doctor himself I could not have been more comfortable. The whole experience was quick, smooth, and easy. Highly recommend!"

- H. Lombardo

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"Dr. Asamoah and team made my EGD procedure very comforting and wonderful. From start to finsih her team made me feel safe and that I was in great hands. They're all so kind, heartwarming and professional. Last thing I remember before knocking out was Dr. Asamoah infectious smile and kind words that put me at ease. I found my forever GI! I highly recommend this place. :-) "

- Armando R.

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"My procedure (colonoscopy) owent smoothly. The staff was professional. I was in and out in less than 2 hours. I arrived at 9am waited in the lobby to be called to the back. Then was prepped and I was out by 11 in my car. I would definitely recommend Dr. Vivian Asamoah and Zazen Surgery Center."

- F. Taylor

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"I recently underwent a colonoscopy/endoscopy procedure at Zazen Surgery Center. Throughout the entire process, the staff consistently checked in to ensure I was comfortable. I arrived at 7 am, and by 9:30 am, I was already on my way home. After the procedure, the staff provided clear instructions for my at-home care. The combination of a friendly and professional staff, a focus on patient comfort, and the impressive efficiency of the procedure made the entire process not only smooth but surprisingly bearable."

- G. Molina

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"Great experience and would highly recommend Zazen Surgery Center to all my family and friends. The front desk and procedure room staff are all attentive and caring and made me feel at ease. I was in and out of there in no time. It was a such good feeling when Dr. Obuaya, my anesthesiologist, talked to me first before the procedure. Dr. Asamoah did my screening, and she is also superbly wonderful informing my daughter of my case. Two thumbs up for the doctors and staff."

- M. DeGuzman

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"Fast and efficient. Friendly staff - very competent. Got a very nice 'follow-up' call the next day to ensure I was feeling alright - very nice. And a nice, clean surgery center."

- B. Russell

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"The staff is great. They listened to my questions and provided good answers. The facility is clean and well-maintained."

- P. Mackey

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"Clean, modern, and efficient. All the staff from reception to the nurses were competent and professional. I’d like to say I’d return again without hesitation - but I’d rather not have another colonoscopy.😁"

- K. Hartman

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"I will highly recommend Zazen as the place to go to!! From the front desk to everyone I encountered were super nice, welcoming and made you feel beyond comfortable. Thank you so much to everyone at Zazen i came across on 12/11/2023 for my procedure. You guys were beyond amazing!! THANK YOU!!!"

- Beke

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"This is my second colonoscopy. 1st time here absolutely no complaints. Staff very friendly and helpful very professional. I will strongly refer friends and family, definitely come back if needed. Thank you!"

- L. Stauffacher

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Welcome to

Zazen Surgery Center

Top Outpatient Fully AAAHC-Accredited Ambulatory Surgery Center Serving the Greater Houston Metro Area

Offering same-day diagnostic endoscopic procedures for preventive, diagnostic, and therapeutic interventions

Take a Tour of the Surgery Center

Location & Hours

Pre-Registration

Billing & Financial

About Us

Customer-Oriented

AAAHC-Accredited Facilities

Our Mission

Slide title

Our Services

Preventive Procedures

Diagnostic Procedures

Therapeutic Interventions

We Help you Afford the Care You Need and Deserve

Slide title

Patient Testimonials

"My procedure (colonoscopy) owent smoothly. The staff was professional. I was in and out in less than 2 hours. I arrived at 9am waited in the lobby to be called to the back. Then was prepped and I was out by 11 in my car. I would definitely recommend Dr. Vivian Asamoah and Zazen Surgery Center."

"Fast and efficient. Friendly staff - very competent. Got a very nice 'follow-up' call the next day to ensure I was feeling alright - very nice. And a nice, clean surgery center."

"The staff is great. They listened to my questions and provided good answers. The facility is clean and well-maintained."

"Clean, modern, and efficient. All the staff from reception to the nurses were competent and professional. I’d like to say I’d return again without hesitation - but I’d rather not have another colonoscopy.😁"

"I will highly recommend Zazen as the place to go to!! From the front desk to everyone I encountered were super nice, welcoming and made you feel beyond comfortable. Thank you so much to everyone at Zazen i came across on 12/11/2023 for my procedure. You guys were beyond amazing!! THANK YOU!!!"

"This is my second colonoscopy. 1st time here absolutely no complaints. Staff very friendly and helpful very professional. I will strongly refer friends and family, definitely come back if needed. Thank you!"

Outpatient Ambulatory Surgery Center in the Houston Metro Area

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