Osama Mohamad

Osama Mohamad

Osama Mohamad, M.D. Ph.D.

Assistant Professor
Department of Radiation Oncology

UCSF Medical Center at Mission Bay
Ron Conway Family Gateway Medical Building
1825 Fourth St. 1st floor M1215
San Francisco, CA 94115-1708
Phone: 415 502-1645
Fax: 415 514-3584
Email: osama.mohamad[at]ucsf.edu

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Professional Focus

Dr. Osama Mohamad is a radiation oncologist treating genitourinary cancers with a special focus on prostate and kidney using intensity-modulated radiotherapy (IMRT), stereotactic radiotherapy (SBRT), and HDR brachytherapy. He will build on the strong interdisciplinary cancer clinical programs in the departments of urology, radiation oncology, and medical oncology at UCSF to develop clinical research, clinical trials, and translational research. His research focuses on using ablative radiation techniques for treating localized and metastatic prostate and kidney cancers and studying clinical determinants of outcomes and responses to treatments..


2003-2008 American University of Beirut, Beirut, Lebanon BS Biology
2008-2014 Emory University, Atlanta, GA PhD Stem Cells and Regenerative Neuroscience (MSTP Program)
2008-2014 Emory University, Atlanta, GA MD Medicine (MSTP Program)
2011-2012 Emory University, Atlanta, GA Fellow Certificate Program in Clinical and Translational Research, HHMI Fellowship
2014-2015 University of Hawaii, Honolulu, Hawaii Intern Medical intern - Transitional Year Program
2017-2018 National Institute of Radiological Sciences, Hospital of Charged Particle Therapy, Japan   Visiting Clinician and Researcher in Carbon Ion Therapy
2015-2019 University of Texas Southwestern Medical Center, Dallas, TX Resident Radiation Oncology
2015-2019 University of Texas Southwestern Medical Center, Dallas, TX Chief Resident Radiation Oncology


Professional Experience

2019-present University of California, San Francisco Assistant Professor Radiation Oncology


Awards & Honors

2003 Ranked #3 in Lebanon in the National Baccalaureate Exam
2003-2006 Dean’s Honor list for excellence in academic performance (all semesters)
2005 "Nicholas Jabr Award for Academic Excellence," American University of Beirut, Lebanon
2006 B.S. degree, graduation with distinction “summa cum laude”
2007 Alpha Omega Alpha Honors Medical Society “Carolyn Kuckein Student Research Award”
2009 “Crawford Long Anesthesiology Research Award”, Emory University, Atlanta
2012 Best paper award in "Pan Pacific Symposium on Stem Cells and Cancer Research," Taiwan
2012 Travel award to the “Pan Pacific Symposium on Stem Cells and Cancer Research”, Taiwan
2012 Travel award to the Middle East Medical Assembly (MEMA) conference, Beirut, Lebanon
2015 “Resident of the year” award, University of Hawaii Transitional Year Program 2014-2015
2016 Departmental “Highest Accruing Resident” in clinical trials award in 2015-2016
2017 ASTRO/ARRO Global Health Scholar Program Award
2018 Travel Award to PTCOG 57, Cincinnati, USA
2018 ABS/MD Anderson Prostate LDR/HDR Workshop fellowship award
2019 RSNA Roentgen resident research award
2019 Resident of the year, Chief Resident award
2019 Pistennma Award at University of Texas Southwestern, Dallas 


Recent Significant Publications:

Mohamad O, Makishima H, Kamada T. Evolution of Carbon Ion Radiotherapy at the National Institute of Radiological Sciences in Japan. Cancers (Basel), 2018. 10 (3).

Mohamad O, Durante M. Clinical indications of Carbon Ion Radiotherapy. Clin Oncol (R Coll Radiol), 2018. 30 (5): p. 317-329.

Mohamad O, Imai R, et al. Carbon Ion Radiotherapy for Inoperable Pediatric Osteosarcoma. Oncotarget. May 2018. 9 (33): p. 22976-22985.

Mohamad O, Doke K, et al. A Fellow’s Fate: Employment Outcomes of Radiation Oncology Fellowsip Graduates. Int J Radiat Oncol Biol Phys, 2018. 102 (1): p. 16-17.

Mkanna A, Mohamad O, et al. Predictors of Cardiac Sparing in Deep Inspiration Breath-hold for Patients with Left Sided Breast Cancer. Front Oncol. 2018 Nov 27;8:564.

Mohamad O, Tabuchi T, et al. Risk of Subsequent Primary Cancers after Carbon Ion Radiotherapy, Photon Radiotherapy, or Surgery for Localised Prostate Cancer: A Propensity Score-weighted, Retrospective, Cohort Study. Lancet Oncol. 2019 May;20(5):674-685.

Makishima H, Yasuda S, Isozaki Y, Kasuya G, Okada N, Miyazaki M, Mohamad O, et al. Single Fraction Carbon Ion Radiotherapy for Liver Metastasis from Colorectal Cancer. Cancer Sci. 2019 Jan;110(1):303-309.

Doke K, Mohamad O, et al. Fellowship Training Programs in Radiation Oncology: A Snapshot from 2005-2017. Int J Radiat Oncol Biol Phys. 2019 Jul 15;104(4):765-772.

Rahimi A, Mohamad O, Kim N, et al. Novel Hyaluronan Formulation for Preventing Acute Skin Reactions in Breast during Radiotherapy: A Randomized Clinical Trial. Support Care Cancer. 2019 Jul 4.

Lin M, Yang M, Dougherty J, Tasson A, Zhang Y, Mohamad O, et al. Radiation Therapy for Pediatric Brain Tumors using Robotic Radiation Delivery System and Intensity Modulated Proton Therapy. Pract Radiat Oncol. 2019 Sep 19.

Zhang Y, Mohamad O, et al. Stereotactic Ablative Radiation Therapy (SAbR) Used to Defer Systemic Therapy in Oligometastatic Renal Cell Cancer. Int J Radiat Oncol Biol Phys. 2019 Oct 1;105(2):367-375.

Fadel HA, El Ahmadieh T, Plitt AR, Neeley OJ, Johnson Z, Aoun SG, Mohamad O, et al. Oculomotor Schwannomas: A Systematic Review and Report of Two Pediatric Cases Treated with Fractionated Cyberknife Stereotactic Radiotherapy. World Neurosurg. 2019 Sep;129:487-496.