Youssef Zeidan MD PhD

Radiation Oncology•Boca Raton, FL

Breast Cancer, Central Nervous System Cancer, Gastrointestinal Cancer

Physician

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701 Northwest 13th StreetBoca Raton, FL 33486
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Overview of Dr. Zeidan

Dr. Youssef Zeidan is a radiation oncologist based in Boca Raton, FL, specializing in gastrointestinal cancer, breast cancer, brain tumors, clinical research, and radiotherapy. He completed his residency in Radiation Oncology at Stanford University and holds a PhD in Molecular and Cellular Biology and Pathobiology from the Medical University of South Carolina. He is currently a physician at Lynn Cancer Institute and has been an associate professor at the American University of Beirut's New York Office since 2016. His publications include works in notable journals such as Radiotherapy and Oncology and Journal of Clinical Oncology. He has been recognized with multiple CMS Meaningful Use Stage 1 Certifications and received a Resident Abstract Award from ASTRO in 2013. He has also contributed to clinical trials, such as the one on breast re-irradiation.

Education & Training

Stanford Health Care-Sponsored Stanford UniversityResidency, Radiation Oncology, 2010 - 2014
Indiana University School of Medicine/Methodist HospitalInternship, Transitional Year, 2009 - 2010
Medical University of South CarolinaClass of 2009
Medical University of South CarolinaPhD, Molecular and Cellular Biology and Pathobiology, 2003 - 2007
American University of BeirutB.S., 2001 - 2003

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Certifications & Licensure

FL State Medical License 2014 - 2028
CA State Medical License 2010 - 2015
American Board of Radiology Radiation Oncology

Awards, Honors, & Recognition

CMS Meaningful Use Stage 1 Certification OpTime Surgical 2014 Certified Module, Epic Systems Corporation, 2016
CMS Meaningful Use Stage 1 Certification Beacon Oncology 2014 Certified Module, Epic Systems Corporation, 2016
CMS Meaningful Use Stage 1 Certification EpicCare Ambulatory 2014 Certified EHR Suite, Epic Systems Corporation, 2016

Clinical Trials

Breast Re-irradiation After Second Ipsilateral Lumpectomy Start of enrollment: 2025 Oct 27
RECRUITING
NA

Publications & Presentations

PubMed

1 citations
Local management of second ipsilateral breast cancer events after primary breast-conserving therapy: an international Delphi consensus.
Jean-Michel Hannoun-Levi, Julie A Margenthaler, Bethany Anderson, Rosa Di Micco, Douglas W Arthur
The Lancet. Oncology. 2026-09-01
Axillary Surgery in Sentinel Node-Positive Breast Cancer After Neoadjuvant Therapy: A Systematic Review and Meta-analysis.
Rim El Annan, Mohamad El-Jammal, Youssef H Zeidan
Clinical Breast Cancer. 2026-08-13
Long-term follow-up after regional nodal irradiation: What wisdom comes with age.
Youssef H Zeidan, Stephen A Mihalcik, Rachel B Jimenez
CA. 2026-05-16

Journal Articles

Short-course radiation followed by mFOLFOX-6 plus avelumab for locally-advanced microsatellite stable rectal adenocarcinoma: The Averectal study
Ali Shamseddine 1, Rim Turfa 2, Laudy Chehade 3, Youssef H Zeidan 4, Ziad El Husseini 3, Malek Kreidieh 3, Youssef Bouferraa 3, Charbel Elias 3, Joseph Kattan 5, Ibrah..., European Journal of Cancer, 4/25/2025
Intraoperative Radiation Therapy for Parotid Cancer: A Single Institution Experience
Zeidan YH, Shiue K, Weed D, Johnstone PA, Freeman S, Krowiak E, Borrowdale R, Huntley T, Yeh A, Int J Radiat Oncol Biol Phys, 4/1/2012
Intraoperative Radiation Therapy for Advanced Cervical Metastasis: A Single Institution Experience
Zeidan YH, Shiue K, Weed D, Johnstone PA, Freeman S, Krowiak E, Borrowdale R, Huntley T, Yeh A, Radiat Oncol, 6/15/2011

Books/Book Chapters

Gene Therapy
Chapter: Implementation of acid ceramidase inhibitors as adjuncts to increase the efficacy of cancer therapy.
Page 58 - 65Liu Xiang, Elojeimy Saeed, Turner Lorianne S, Mahdy Ayman EM, Zeidan Youssef, Bielawska Alicja, Bielawski Jacek, Dong Jian-Yun, El-Zawahry Ahmed M, Guo Gui-wen, Hannun...Editors: Ochiai T, Shimada H, Tagawa M.Medical View, Co., Ltd., Chiba, Japan2007
Sphigolipid Biology
Chapter: Overview of Acid and Neutral Sphingomyelinases in Cell Regulation.
Zeidan Youssef, Marchesini Norma and Hannun YusufEditors: Hirabayashi, Yoshio; Igarashi, Yasuyuki; Merrill, Alfred H. Jr..Springer2006

Abstracts/Posters

Survival Benefit for Adjuvant Radiation Therapy in Minor Salivary Gland Tumors.
Y. Zeidan, Y. An, L. Pekelis, C. Kong and Q. Le, ASTRO 2014 Multidisciplinary Head and Neck Cancer Symposium, Phoenix, AZ, 2/1/2014
Botulinum Toxin Injection Confers Radioprotection In Murine Salivary Glands.
Y. Zeidan, N. Xiao, H. Cao, C. Kong,, Q. Le and D. Sirjani, ASTRO 55th Annual Meeting, Atlanta, GA, 9/1/2013
Prospective Analysis of Measured Oral Mucosal Dose and Oral Mucositis (OM) in Head and Neck Cancer (HNC) Patients During IMRT.
Z. Wang, C. Chan, L. Wang, E. Mok, Y. Zeidan, N. Lee-Enriquez, L. Xing, W. Hara and Q. Le, ASTRO 55th Annual Meeting, Atlanta, GA, 9/1/2013

Press Mentions

VIVLISeptember 1st, 2025
Skipping Chest-Wall Irradiation After Mastectomy in Intermediate-Risk Breast CancerDecember 16th, 2024
How Miami Cancer Institute's World-Class Radiation Therapy Team Is Changing LivesOctober 3rd, 2024

External Links

SCHOLARS PROGRAM AT BOCA RATON REGIONAL HOSPITAL, PART OF BAPTIST HEALTH, HONORS EUGENE M. & CHRISTINE E. LYNN CANCER INSTITUTE PHYSICIANhttps://southfloridahospitalnews.com/scholars-program-at-boca-raton-regional-hospital-part-of-baptist-health-honors-eugene-m-christine-e-lynn-cancer-institute-physician/
Vivli spotlighthttps://vivli.org/vivli-researcher-spotlight-improving-mentorship-and-clinical-practice-with-vivli/