In medicine, we can combine leading-edge science, ingenuity and innovation with warmth and kindness to try to help the patient and their loved ones as best we can. Benjamin Cahan, M.D., is a radiation oncologist and assistant clinical professor in the Department of Radiation Oncology at City of Hope | South Pasadena.
Dr. Cahan specializes in all forms of radiation treatment including emerging treatments, such as image guided radiotherapy, stereotactic radiosurgery and stereotactic body radiation therapy.
Dr. Cahan earned his medical degree from the University of California Los Angeles (UCLA) David Geffen School of Medicine, from which he graduated with Alpha Omega Alpha honors. His training continued with an internship at UCLA-Olive View Medical Center. He then joined City of Hope in 2012 as a resident in radiation oncology. In 2015, he was named chief resident, a position he held until joining our faculty full time at City of Hope | South Pasadena in 2016.
Dr. Cahan always puts his patients first. His research is focused on the impact of therapies on patients' quality of life. His approach to clinical practice focuses on providing both excellent medical treatment and strong support and reassurance, to reduce his patients’ anxiety. He fully subscribes to City of Hope's “body and soul” credo. In his words: “We must care for our patients' entire selves, and not just their disease.”
California Medical License, Medical Board of California
2011, M.D., David Geffen School of Medicine at University California Los Angeles, Los Angeles, CA
2005, Postbaccalaureate Premedical Program, Columbia University, New York, NY, Post-baccalaureate Premedical Program
2001, B.A. in Economics, Columbia University, New York, NY, B.A. Economics
2015-2016, Chief Resident, Radiation Oncology, Department of Radiation Oncology, City of Hope, Duarte, CA
2012-2015, Resident, Radiation Oncology, Department of Radiation Oncology, City of Hope, Duarte, CA
2016-present, Radiation Oncologist and Assistant Clinical Professor, Department of Radiation Oncology, City of Hope, Mission HIlls and Santa Clarita, CA
Awards & Memberships
2015, Clinical Investigation Training Program Scholar, City of Hope
2010, Alpha Omega Alpha Medical Honors Society, UCLA
2001, David Estabrook Romine Scholar, Columbia University
Cahan B, Kim JH, Schultheiss TE, Wong JYC, Chen YJC. “Stage I and II Endometrial Adenocarcinoma: Analysis of 2009 FIGO Staging Revision and Impact on Survival by Adjuvant Therapy.” Am J Clin Oncol 2018, Mar(3):3026
Cahan BL, Chen YJC. “Field and Dose for Primary Central Nervous System Lymphoma After Chemotherapy; In Regard to Yahalom et al.”Int J Radiation Oncol Biol Phys 2015, Oct 1;93(2):4712
Demanes DJ, Banerjee R, Cahan BL, Lee SP, Park SJ, Fallon JM, Reyes P, Van TQ, Steinberg ML, Kamrava MR. “Ureteral stent insertion for gynecologic interstial highdoserate brachytherapy.” Brachytherapy. 2015 MarApr;14(2):24551
Han J, Girvigian MR, Chen JC, Miller MJ, Lodin K, Rahimian J, Arellano A, Cahan BL, Kaptein JS. “A comparative study of stereotactic radiosurgery, hypofractionated, and fractionaed stereotactic radiotherapy in the treatment of skull base meningioma.” Am J Clin Oncol. 2014 Jun;37(3):25560
Khesbak Z, Cahan B, Appelberg S, Deng-Bryant Y, Prins ML. “Localization of GAPDH expression following controlled cortical impact in juvenile rats.” Journal of neurotrauma, 2009; 26:A47.
Ratings & Reviews
Ratings and reviews below are gathered from the Press Ganey Clinician and Group Consumer Assessment of Healthcare Providers and Systems (CG CAHPS) survey. CG CAHPS is a standardized survey that is used to measure a patient's experience in the physician office setting. Ratings are an average of all responses to questions about a provider's care, with 5 stars being the highest.
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I love this place they have done so much for me I'm blessed to have been able to come here - Verified patient
The staff is great - Verified patient
Exemplary - Verified patient
It was my first time meeting with Dr. Cahan. He was great! Professional, very informative, encouraged me to ask questions if I had any and I had plenty which he answered very patiently. He took the time to explain to me, in detail, what my treatment is going to be like, the possible side effects, and such. I could sense he is a very kind, compassionate doctor, even if it was just my first time meeting him. - Verified patient
The whole team were great, welcomed me to their facility and explained things to me really well. - Verified patient