Radiation Oncology Team

Arya Amini
Arya Amini, M.D.
Radiation Oncologist
Duarte - Main Campus

Arya Amini, M.D., is a radiation oncologist and associate professor in the Department of Radiation Oncology at City of Hope.

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Robert Ash
Robert B. Ash, M.D.
Radiation Oncologist

Robert Ash, M.D., brings more than two decades of radiation oncology experience to City of Hope.

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Tanuja Bhandari
Tanuja A. Bhandari, M.D.
Radiation Oncologist

Tanuja Bhandari, M.D., is a radiation oncologist at City of Hope who is well-versed in all forms of radiation oncology, including intraoperative radiation therapy.

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Leslie Botnick, Senior Director, Radiation Oncology Community Practices; Assistant Clinical Professor, Department of Radiation Oncology
Leslie E. Botnick, M.D.
Radiation Oncologist
Sherman Oaks Radiation Oncology

Leslie Botnick, M.D., now a radiation oncologist with City of Hope, helped bring about the significant advance of treating many breast cancer patients with lumpectomy plus radiation, instead of mastectomy.

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Meet Radiation Oncologist Benjamin Cahan , M.D.
Benjamin Cahan , M.D.
Radiation Oncologist
Mission Hills Radiation Oncology; Santa Clarita Radiation Oncology

Benjamin Cahan, M.D., is a radiation oncologist at City of Hope's Mission Hills and Santa Clarita locations.

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Lisa Chaiken, Radiation Oncologist
Lisa M. Chaiken, M.D.
Radiation Oncologist
Sherman Oaks Radiation Oncology; Providence Saint John’s Cancer Institute in Santa Monica

Lisa M. Chaiken, M.D., is a radiation oncologist at City of Hope who is well-versed in all forms of radiation treatment and specializes in breast, prostate, head and neck, and gynecologic cancers.

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Meet Our Doctors: YiJen Chen, M.D., Ph.D.
Yi-Jen Chen, M.D., Ph.D.
Radiation Oncologist
Duarte - Main Campus

Yi-Jen Chen, M.D., Ph.D., is a radiation oncologist specializing in gastrointestinal cancers, gynecological cancers and esophageal cancers

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Chen Helen
Helen Chen, M.D.
Radiation Oncologist
South Pasadena

Helen Chen, M.D., is a radiation oncologist at City of Hope, South Pasadena in Los Angeles, Southern California.

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Dandapani Savita
Savita Dandapani, M.D., Ph.D.
Radiation Oncologist
Duarte - Main Campus

Savita Dandapani, M.D., Ph.D., is a radiation oncologist at City of Hope who specializes in improving treatment outcomes and reducing side effects for cancer patients undergoing radiation therapy.

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Boryana Eastman
Boryana Eastman, M.D., Ph.D.
Radiation Oncologist
Antelope Valley

Boryana Eastman, M.D., Ph.D. is an assistant professor in the Department of Radiation Oncology and Department at City of Hope.

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