Our practice was established at Cedars-Sinai Medical Center over 30 years ago. Many of our office partners have since retired and new generations of gastroenterologists continue to join our group. We are the recognized leaders in private practice gastroenterology in our community. We only work out of Cedars-Sinai Medical Center but collaborate with physician colleagues at UCLA, St. John’s, Olympia, and Brotman medical centers. Dr. Treyzon only sees outpatients and inpatients at Cedars-Sinai Medical Center.