Olivier Urayeneza, MD
Surgeon
309 W Beverly Blvd.
Montebello, CA 90640
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110 providers
Availability last updated 10/01/2025
Olivier Urayeneza, MD
Surgeon
309 W Beverly Blvd.
Montebello, CA 90640
Hermenegildo Ocampo, MD
Surgeon
309 W Beverly Blvd.
Montebello, CA 90640
David Duarte, MD
Surgeon
309 W Beverly Blvd.
Montebello, CA 90640
Scott Gaspard, MD
Surgeon
309 W Beverly Blvd.
Montebello, CA 90640
Jin Park, MD
Surgeon
309 W Beverly Blvd.
Montebello, CA 90640
Gudata Hinika, MD
Surgeon
309 W Beverly Blvd.
Montebello, CA 90640
Yanira Perez, MD
General Practice Physician
15115 Amar Rd
La Puente, CA 91744
About Dr. Fischer
Trevan Fischer, MD, FACS, specializes in complex general surgical oncology and is certified by the American Board of Surgery. Dr. Fischer is an experienced surgeon who offers patients in Santa Monica, Los Angeles and Orange, California, the latest surgical techniques to help in the battle against cancer. His thorough understanding of the nature of cancer allows him to perform complex surgeries that help him diagnose and treat a number of conditions, including melanoma, other skin cancers, and soft tissue sarcomas.
Outside of his practice, Dr. Fischer continually strives to stay on top of the latest techniques in treating cancer, and he is actively involved with innovative clinical trials at The Angeles Clinic and Research Institute, a Cedars-Sinai affiliate. He also involved in continuing training the next generation of surgical oncologist as faculty member of Cedars Complex General Surgical Oncology Fellowship program. Cedars-Sinai is consistently ranked among the nation’s top hospitals, recognized for pioneering research, advanced technology, and world-class patient care—providing an unparalleled environment for cancer innovation and collaboration.
Dr. Fischer began his medical career at the University of Oklahoma in Oklahoma City, where he earned his medical degree in 2008. He completed his general surgery residency at the University of Florida in Gainesville in 2015, serving as chief resident from 2014-2015. In 2015, Dr. Fischer became a fellow at the John Wayne Cancer Institute, where he completed two years of specialized surgical oncology training.
To continue his education, Dr. Fischer is a member of the Society of Surgical Oncology, the American College of Surgeons, and the American Medical Association.
Over the course of his career, Dr. Fischer’s involvement in research and clinical trials has led to numerous articles, papers, and presentations in peer-reviewed publications and at national conferences.
Dr. Fischer is constantly exploring new ways to gain the upper hand on cancer through state-of-the-art surgical techniques and brings this experience to the Southern California area. He also accepts patients across all of Southern California, including Bakersfield, San Luis Obispo and Palm Springs.
Dr. Fischer has continued his practice in Orange County and sees patients at Providence St. Joseph.
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Dr. Trevan Fischer, MD
Surgeon
2151 N Harbor Blvd
Ste. 3200
Fullerton, CA 92835
Dr. Gergis Ghobrial, MD
Surgeon
101 Valencia Mesa Drive
Fullerton, CA 92835
Quang Vo, MD
Surgeon
2501 E Chapman Ave Ste 200
Fullerton, CA 92832
Navrose Grewal, MD
Surgeon
3650 South St Ste 206
Lakewood, CA 90712
Dr. Gergis Ghobrial, MD
Surgeon
3751 Katella Ave.
Los Alamitos, CA 90720
Meet Dr. Yavrouian
Dr. Robert Yavrouian, MD, is a board-certified surgeon specializing in colon and rectal surgery. Dr. Yavrouian has been serving the Southern California area for over a decade with offices in the Boyle Heights area of Los Angeles and Glendale, California.
Dr. Yavrouian is a Southern California native who attended the University of Southern California (USC), where he received his bachelor’s and master’s degrees in biomedical engineering. He earned his medical degree from Drexel University in Philadelphia and completed his general surgery training at San Joaquin General Hospital in Stockton, CA. He then returned to USC to complete his fellowship specializing in colon and rectal surgery.
He is trained to treat all aspects of colorectal health, including both benign and malignant conditions of the colon, rectum, and anus. Dr. Yavrouian’s clinical interests include hemorrhoids, proctology, colonoscopy, anal abscess and fistula, anal fissure, pilonidal disease, diverticular disease, rectal prolapse, colon and rectal cancer, and minimally invasive surgical techniques, including laparoscopic and robotic surgery.
He is an attending surgeon at Glendale Adventist Medical Center and White Memorial Medical Center. Dr. Yavrouian is a member of the American College of Surgeons, American Society of Colon and Rectal Surgeons, Northwest Society of Colon & Rectal Surgeons, and Armenian American Medical Society.
Dr. Yavrouian knows that visiting a surgeon for a colorectal problem can be both frightening and embarrassing. He and his staff are committed to providing patients with the best possible care in a warm, caring, and compassionate environment. Schedule an appointment by calling the nearest office or booking online today.
Dr. Robert Yavrouian, MD
Surgeon
1700 E Cesar E Chavez Ave
Suite 1400
Los Angeles, CA 90033
Claire Chavez, MD
Surgeon
3711 Long Beach Blvd #101
Long Beach, CA 90807
Mercedeh Baghai, MD
Surgeon
3711 Long Beach Blvd #101
Long Beach, CA 90807
Jessica Rayhanabad, MD
Surgeon
3711 Long Beach Blvd #101
Long Beach, CA 90807
Dr. Gergis Ghobrial, MD
Surgeon
1720 Termino Ave.
Long Beach, CA 90804
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