LOCAL HEALTHCARE PROVIDERS
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101 providers
Availability last updated 06/11/2026
Atul Madan
Surgeon
10573 W Pico Blvd Pmb 859
Los Angeles, CA 90064
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
11800 Wilshire Blvd
Los Angeles, CA 90025
Tariq Kelker, MD
Internist
1525 3rd St # 205
Riverside, CA 92507
Dr. Samuel Kashani, MD
Surgeon
16133 Ventura Blvd
Unit 415
Encino, CA 91436
Nojan Toomari, DO
Surgeon
16661 Ventura Blvd.
Suite 408
Encino, CA 91436
David Magner, MD
Colorectal Surgeon
14850 Roscoe Blvd
Panorama City, CA 91402
Nojan Toomari, DO
Surgeon
5353 Balboa Blvd.
Suite 300
Encino, CA 91316
Nojan Toomari, DO
Surgeon
18133 Ventura Blvd. #400
Tarzana, CA 91356
Nojan Toomari, DO
Surgeon
18321 Clark Street
Tarzana, CA 91356
Alvaro Bolivar, MD
Surgeon
590 N. Sierra Way
San Bernardino, CA 92410
Walid Arnaout, MD
Surgeon
18250 Roscoe Blvd
Ste 220
Northridge, CA 91325
Nojan Toomari, DO
Surgeon
18330 Roscoe Blvd.
Northridge, CA 91325
Raymund Cordero, MD, is a skilled, dedicated, and board-certified doctor of medicine specializing in general surgery and has been practicing locally for over 20 years.
In addition to his work at Murrieta Valley Surgery Associates, Dr. Cordero also holds appointments at Inland Valley Regional Medical Center, Rancho Springs Medical Center, Loma Linda University Medical Center Murrieta, Temecula Valley Hospital, and Menifee Valley Hospital.
Dr. Cordero is a member of the American College of Surgeons (ACS), the American Society of Breast Surgeons (ASBrS), and the Society of Laparoendoscopic Surgeons (SLS). He is certified by the American Board of Surgery (ABS).
When Dr. Cordero isn’t serving patients, he likes watching basketball and soccer. He also enjoys spending time with his two children, who are both interested in pursuing medicine.
Dr. Raymund Cordero, MD
Surgeon
36320 Inland Valley Dr.
#101, #208, #301
Wildomar, CA 92595
Amit Karmur, DO, is the newest vascular surgeon to join Murrieta Valley Surgery Associates (MVSA).
Dr. Karmur graduated from medical school at the Western University of Health Sciences and completed his general surgery residency at Community Memorial Health System in Ventura, California. He then went on to sub-specialize and complete his fellowship in vascular surgery at Harbor-UCLA Medical Center.
Dr. Karmur treats all types of diseases that affect the vascular system. He specializes in both traditional open surgical and minimally invasive endovascular techniques. These include diseases of the carotid arteries, aortic aneurysms, peripheral arterial disease, and dialysis access.
During his spare time, Dr. Karmur likes to travel and learn about new cultures. He also enjoys maintaining his health by working out and staying active by exploring the outdoors. He and his wife are both from the Inland Empire and are excited to be back in the community.
Dr. Amit Karmur, DO
Surgeon
36320 Inland Valley Dr.
#101, #208, #301
Wildomar, CA 92595
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