About Us

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.

Dr. Vivian Asamoah

Board Certified Physician

Education and Postgraduate Training

• Medical School: University of Geneva, Geneva, Switzerland Medical Degree.
• Johns Hopkins Bayview Medical Center, Internal Medicine Residency.
• Johns Hopkins Hospital, Gastroenterology, Hepatology and Nutrition Fellowship. Ranked No 1 in U.S. News @ World Report Rankings

Affiliated Hospitals

• Memorial Hermann Katy Hospital
• Houston Methodist West Hospital

Dr. Radha Tamerisa

Board Certified Physician

Education and Postgraduate Training

• Internship training at Medical College of Pennsylvania/Hahnemann University
• Residency in Internal Medicine at the University of Texas Medical Branch at Galveston, where she also completed her Gastroenterology fellowship.

Affiliated Hospitals

• Memorial Hermann Katy Hospital
• Houston Methodist West Hospital

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.