Emi Yoshida

Emi Yoshida

Emi J. Yoshida, M.D.

Assistant Professor
Department of Radiation Oncology

University of California, San Francisco
Helen Diller Family Comprehensive Cancer Center
Box 1708,1600 Divisadero St, H1031
San Francisco, CA 94115

Make A Gift Button


Professional Focus

Dr. Emi Yoshida is a radiation oncology with a clinical interest in the treatment of gynecologic, breast, and CNS malignancies. Her research focuses on radiation-related toxicity and methods of improving the therapeutic ratio. She strives to integrate patient reported quality-of-life outcomes into routine clinical practice and into clinical research endpoints.

Dr. Yoshida earned her medical degree from the University of California Davis and completed an internal medicine internship at Kaiser Oakland. She then completed residency at Cedars-Sinai Medical Center where she served as chief resident. During her residency, she developed a phase I radiation dose-escalation trial investigating the optimal dose for preoperative stereotactic radiosurgery for the treatment of brain metastases. The irradiated and resected tumors are being used to characterize the response of metastatic brain lesions to radiation and identify associated immune-based biomarkers.


2004 University of California, Los Angeles BA Business-Economics, Sociology
2008 Columbia University Postbacclaureate Medical Sciences
2013 University of California, Davis MD Medicine
2013-2014 Kaiser Permanente, Oakland Internship Internal Medicine
2014-2018 Cedars-Sinai Medical Center Residency Radiation Oncology
2017-2018 Cedars-Sinai Medical Center Chief Resident Radiation Oncology

Professional Experience

2018-Present University of California, San Francisco Assistant Professor Radiation Oncology

Awards & Honors

2010 Medical Scholars Award, Emory University
2010 Medical Student Research Fellowship, UC Davis
2011 Research Travel Award, UC Davis
2013 Outstanding Student in Radiation Oncology, UC Davis
2014 Travel Award and Ambassadorship, Hiroshima International Council for Health Care/International Atomic Energy Agency Conference
2017 Toscano Fund Grant, Cedars-Sinai Medical Center Department of Radiation Oncology
2018 Leo G. Rigler, MD Award for Outstanding Academic Achievement, Cedars-Sinai Medical Center

Recent Significant Publications :

Yoshida EJ, Luu M, David JM, Kim S, Mita A, Scher K, Shiao SL, Tighiouart M, Ho AS, Zumsteg ZS. Postoperative chemoradiation in patients with head and neck cancer aged 70 or older with positive margins or extranodal extension, and the influence of nodal classification. Head Neck 2018;40(6):1228-1236. PMID: 29417700.

Yoshida EJ, Luu M, David JM, Kim S, Mita A, Scher K, Shiao SL, Tighiouart M, Lee NY, Ho AS, Zumsteg ZS. Facility volume and survival in nasopharyngeal carcinoma. Int J Radiat Oncol Biol Phys 2018;100(2):408-417. PMID: 29100787.

Zumsteg ZS, Luu M, Yoshida EJ, Kim S, Tighiouart M, David JM, Shiao SL, Mita A, Scher K, Sherman E, Lee NY, Ho AS. Combined high-intensity local treatment and systemic therapy in metastatic head and neck squamous cell carcinoma: an analysis of the National Cancer Data Base. Cancer 2017;123(23):4583-4593. PMID: 28817183.

David JM, Ho AS, Luu M, Yoshida EJ, Kim S, Mita A, Scher K, Shiao SL, Tighiouart M, Zumsteg ZS. Treatment at high volume facilities and academic centers are independently associated with improved survival in locally advanced head and neck cancer. Cancer 2017;123(20):3933-3942. PMID: 28640546.

Ma Z, Shiao SL, Yoshida EJ, Swartwood S, Huang F, Doche M, Chung A, Knudsen B, Gertych A. Data integration from pathology slides for quantitative imaging of multiple cell types within the tumor immune cell infiltrate. Diagn Pathol 2017;12(1):69. PMID: 28923066.

Zumsteg ZS, Cook-Wiens G, Yoshida E, Shiao SL, Lee NY, Mita A, Jeon C, Goodman MT, Ho AS. Incidence of oropharyngeal cancer among elderly patients in the United States. JAMA Oncol 2016;2(12):1617-1623. PMID: 27415639.

Yoshida EJ, Garcia J, Eisele DW, Chen AM. Salivary gland malignancies in children. Int J of Pediatr Otorhinolaryngol 2014;78(2):174-178. PMID: 24332197.

Yoshida E, Ahoud R, Fragoso R, Farwell G, Gandour-Edwards R, Donald PJ, Chen AM. Improved clinical outcomes with multi-modality therapy for sinonasal undifferentiated carcinoma of the head and neck. Am J Otolaryngol 2013;36(6):658-663. PMID: 23993024.

Yoshida EJ, Chen H, Torres MA, Andic F, Liu H, Chen Z, Sun X, Curran WJ, Liu T. Reliability of quantitative ultrasonic assessment of normal-tissue toxicity in breast cancer radiotherapy. Int J Radiat Oncol Biol Phys. Int J Radiat Oncol Biol Phys 2012;82(2):724-731. PMID: 21435799.

Yoshida EJ, Chen H, Torres MA, Curran WJ, Liu T. Spectrophotometer and ultrasound evaluation of late toxicity following breast-cancer radiotherapy. Med Phys 2011;38(10):5747-5755. PMID: 21992389.