Radiation Oncology Team

Jeffrey Y.C. Wong, M.D.
Chair and Professor, Department of Radiation Oncology
Duarte
Arya Amini, M.D.
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist
Duarte
Robert B. Ash, M.D.
Assistant Clinical Professor, Department of Radiation Oncology
Medical Director of Radiation Oncology, St. Joseph of Orange
Radiation Oncologist

Affiliate Locations
Daniel Maxwell Bernad, M.D.
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist

Affiliate Locations
Tanuja A. Bhandari, M.D.
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist

Affiliate Locations
Sumita Bhatia, M.D.
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist
West Hills Radiation Oncology
Leslie E. Botnick, M.D.
Senior Director, Radiation Oncology Community Practices
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist

Affiliate Locations
Marc I. Botnick, M.D.
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist
Sherman Oaks Radiation Oncology
Benjamin Cahan , M.D.
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist
South Pasadena
Lisa M. Chaiken, M.D.
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist
Sherman Oaks Radiation Oncology
Affiliate Locations
Helen Chen, M.D.
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist
South Pasadena
Yi-Jen Chen, M.D., Ph.D.
Clinical Professor, Department of Radiation Oncology
Radiation Oncologist
Director, Residency Program
Duarte
Savita Dandapani, M.D., Ph.D.
Assistant Professor, Department of Radiation Oncology
Radiation Oncologist
Duarte
Scott Glaser, M.D.
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist
Duarte
Caitlin L. Gomez, M.D.
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist
Mission Hills Radiation Oncology, Santa Clarita Radiation Oncology
Susanna R. Gordon, M.D.
Assistant Clinical Professor, Department of Radiation Oncology
Riverside Radiation Oncology
Garth A. Green, M.D.
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist
South Bay
Janet M. Hocko, M.D.
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist
Riverside Radiation Oncology
Ari Katerelos, M.D.
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist
San Bernardino Radiation Oncology
Affiliate Locations
Linas J. Kazlauskas, M.D.
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist
Glendale Radiation Oncology
Daniel H. Kim, M.D.
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist
Arcadia Radiation Oncology
Ji Hyun Kim, M.D.
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist
Antelope Valley
Paul Mandelin, D.O.
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist
Corona
James Mason, M.D., M.P.H.
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist
Wildomar Radiation Oncology
Eric H. Radany, M.D., Ph.D.
Associate Clinical Professor, Department of Radiation Oncology
Radiation Oncologist
Duarte
Brian B. Ronson, M.D.
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist
Temecula Radiation Oncology
Sagus Sampath, M.D.
Associate Clinical Professor, Department of Radiation Oncology
Radiation Oncologist
Duarte
Mona V. Sanghani, M.D.
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist

Affiliate Locations
Maira E. Simental, M.D.
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist
San Bernardino Radiation Oncology
Karen M. Sokolov, M.D.
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist
South Bay
Sean Szeja, M.D., M.S.
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist
Rancho Cucamonga, Corona
May Lin Tao, M.D., M.S.
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist
Santa Clarita Radiation Oncology
Krupali Tejura, M.D.
Assistant Clinical Professor
Staff Physician and Radiation Oncologist
Rancho Cucamonga
Lauren A. Lukas Vanderspek, M.D.
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist
Mission Hills Radiation Oncology
Nayana L Vora, M.D.
Clinical Director, Department of Radiation Oncology
Radiation Oncologist
Duarte
Tara A. Washington, M.D.
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist
Temecula Radiation Oncology, Wildomar Radiation Oncology
Venita L. Williams, M.D.
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist

Affiliate Locations
Ruth Williamson, M.D.
Staff Physician, Department of Radiation Oncology

Affiliate Locations
Robert Wollman, M.D.
Assistant Clinical Professor, Department of Radiation Oncology
Medical Director, Radiation Oncology, Providence Saint John’s Health Center
Radiation Oncologist

Affiliate Locations
Henry Yampolsky, M.D.
Assistant Clinical Professor, Department of Radiation Oncology
Radiation Oncologist
West Hills Radiation Oncology