Eleftherios P Mamounas MD
Breast, Surgical Oncology (Other than Breast)
Professor of Surgery, Northeast Ohio Medical University
2501 N Orange AvenueSuite 389Orlando, FL 32804
Overview of Dr. Mamounas
Dr. Eleftherios Mamounas is a general surgeon in Orlando, FL and is affiliated with multiple hospitals in the area, including AdventHealth Orlando and Orlando Health Orlando Regional Medical Center. He received his medical degree from University of Athens and has been in practice 34 years. He is one of 96 doctors at Orlando Health Orlando Regional Medical Center and one of 153 doctors at AdventHealth Orlando who specialize in General Surgery. He has more than 100 publications and over 500 citings.
Education & Training
UPMC Medical Education (Pittsburgh)Residency, Surgery, 1984 - 1989
University of AthensClass of 1983
Certifications & Licensure
FL State Medical License 2012 - 2027
OH State Medical License 1997 - 2014
PA State Medical License 1985 - 1998
American Board of Surgery Surgery
Awards, Honors, & Recognition
- Fellow (FACS) American College of Surgeons
Clinical Trials
- Fluorescence Imaging of Carcinoma During Breast Conserving Surgery Start of enrollment: 2021 Apr 27
Roles: Principal Investigator
Publications & Presentations
PubMed
- Expert Perspectives on Controversies and Critical Knowledge Gaps in Breast Cancer Management: Proceedings of the First Bridging the Gaps in Breast Cancer Symposium.Komal Jhaveri, Carey K Anders, Aditya Bardia, Manali Bhave, A Jo Chien
Clinical Breast Cancer. 2025-08-01 - NRG-BR008/HERO study: a Phase III randomized trial of radiotherapy optimization for low-risk HER2-positive breast cancer.Lior Z Braunstein, Melissa P Mitchell, Hanna Bandos, William M Sikov, Atif J Khan
Future Oncology. 2025-07-01 - 4 citationsBreast Tumor-Bed Biopsy for Pathological Complete Response Prediction: The NRG-BR005 Nonrandomized Clinical Trial.Mark Basik, Reena S Cecchini, Jennifer F De Los Santos, Heidi R Umphrey, Thomas B Julian
JAMA Surgery. 2025-07-01
Journal Articles
- 21-Gene Assay as Predictor of Chemotherapy Benefit in HER2-Negative Breast CancerEleftherios P Mamounas, Frederick L Baehner, Norman Wolmark, D Lawrence Wickerham, Nature
- Clinical Relevance of the 21-Gene Recurrence Score® Assay in Treatment Decisions for Patients with Node-Positive Breast Cancer in the Genomic EraEleftherios Mamounas, MD, Nature
Lectures
- NRG Oncology/NSABP B-51/RTOG 1304: Phase III trial to determine if chest wall and regional nodal radiotherapy (CWRNRT) post mastectomy (Mx) or the addition of RNRT to ...2019 ASCO Annual Meeting - 6/1/2019
- NRG Oncology/NSABP B-51/RTOG 1304: Phase III trial to determine if chest wall and regional nodal radiotherapy (CWRNRT) post mastectomy (Mx) or the addition of RNRT to ...2018 ASCO Annual Meeting - Chicago, Illinois - 06/2/2018
Press Mentions
Regional Nodal Irradiation in Node-Negative Breast Cancer After Neoadjuvant ChemotherapyJune 18th, 2025- NRG Oncology Study Finds Regional Nodal Irradiation Does Not Lower Invasive Breast Cancer Recurrence in Patients with Axillary Node Conversion After Neoadjuvant ChemotherapyJune 6th, 2025
- Nodal Irradiation Does Not Reduce Recurrence, Death for ypN0 Breast CancerJune 6th, 2025
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Committees
- Chair, NRG Oncology Breast Committee 2012 - Present
Professional Memberships
- Member
- Member
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