Coastal Radiation Oncology Medical Group
world-class cancer care has a local address.

Robert Hesselgesser, M.D.

Dr HesselgesserDr. Hesselgesser is a graduate of USC and New York Medical College and completed his residency in radiation oncology at the LA County USC Medical Center. Board-certified in radiation oncology in 1975, Dr. Hesselgesser is a member of the American Medical Association, the American Society of Clinical Oncology (ASCO), the American College of Radiology, the American Society of Therapeutic Radiology and Oncology (ASTRO) and the American Endocurietherapy Society. Dr. Hesselgesser is a specialist in radioactive implants with high and low dose rate Iridium-192, and has lectured internationally on the topic, including its use in lung, brain and nasopharyngeal tumors.

Dr. Hesselgesser practices with North Oaks Radiation Oncology Center in Thousand Oaks and Westlake Radiation Oncology Center in Westlake Village.