USA, Washington 
Dr. Charbel Matar is a hematology-oncology physician and Chief Fellow at George Washington University with a strong academic focus on evidence-based oncology, clinical guideline development, and global cancer care. He is recognized for his contributions to systematic reviews and meta-analyses, particularly within the framework of the GRADE methodology, supporting international clinical practice guidelines. Dr. Matar is actively involved in the American Society of Clinical Oncology (ASCO) and serves on the Editorial Board of JCO Global Oncology, reflecting his leadership in academic oncology, research dissemination, and global health initiatives. His work emphasizes equitable, patient-centered cancer care, with a focus on cancer-associated thrombosis, gastrointestinal malignancies, and disparities affecting underserved and adolescent/young adult (AYA) populations.
Current Position
- Chief Fellow, Hematology–Oncology, George Washington University
- Medical Oncology & Hematology Fellow, George Washington University
- Member, Inpatient Oncology Operations Committee, George Washington University
Education & Training
- MD, Holy Spirit University of Kaslik, Lebanon
- Bachelor of Science in Basic Health Sciences, Holy Spirit University of Kaslik
- Residency, Internal Medicine, American University of Beirut
- Fellowship, Medical Oncology & Hematology, American University of Beirut
- Residency, Internal Medicine, University of Connecticut
- Fellowship, Medical Oncology & Hematology, George Washington University
Areas of Specialization
- Hematology and medical oncology
- Cancer-associated thrombosis and anticoagulation in oncology
- Gastrointestinal malignancies
- Evidence-based oncology and systematic reviews
- Clinical practice guideline development (GRADE methodology)
- Global oncology and cancer care in resource-limited settings
- Health disparities and access to care in oncology
- Adolescent and young adult (AYA) oncology
Clinical & Research Focus
- Cancer-associated thrombosis and anticoagulation strategies in oncology
- Gastrointestinal malignancies and hematologic cancers
- Evidence synthesis through systematic reviews and meta-analyses
- Clinical practice guideline development using GRADE methodology
- Global oncology and cancer care delivery in resource-limited and conflict settings
- Health disparities, including adolescent and young adult (AYA) oncology populations
Academic Profile
- Editorial Board Member, Journal of Clinical Oncology – Global Oncology (JCO-GO)
- Former Social Media Editor, JCO Global Oncology
- Contributor to ASCO Educational Book and global oncology expert panels
- Author and co-author of multiple peer-reviewed publications, including Cochrane systematic reviews and oncology-focused research articles
- Recognized for contributions to high-impact guideline-related research in thrombosis and oncology
- Active reviewer for The Cochrane Database of Systematic Reviews and oncology journals
Leadership & Professional Roles
- Member, ASCO Trainee and Early Career Advisory Group (TECAG)
- Board Member, ASCO Social Media Working Group
- Active contributor to ASCO mentoring and workforce development initiatives
- Featured Voice, ASCO Annual Meetings (multiple years)
- Member, European Hematology Association Scientific Working Group (Red Cells & Iron)
- Member, American Society of Hematology (ASH) and American Society of Clinical Oncology (ASCO)
- Contributor to international collaborations in oncology guideline development and research
Awards & Honors
- Young Investigator Award, Society of Hematologic Oncology (SOHO)
- ASH Visitor Training Program Research Award (Johns Hopkins University)
- Top Reviewer Award, JCO Global Oncology
- First Prize of Excellence in Research, American University of Beirut Medical Center
- ASCO Mentoring Program Awards and Editorial Fellowship recognition
- Multiple academic excellence awards throughout medical training
Research & Clinical Contributions
- Contributed to over 10 systematic reviews and meta-analyses informing international clinical guidelines, including ASH recommendations
- Extensive involvement in Cochrane Database systematic reviews focusing on anticoagulation in cancer patients
- Published research addressing thrombosis, hematologic conditions, and global oncology patterns
- Active participation in translational and clinical research in gastrointestinal oncology
- Contributions to guideline development impacting clinical decision-making in oncology worldwide
Teaching & Mentorship
- Chief Fellow leadership in coordinating oncology education and mentoring trainees
- Instructor in hematology didactics for medical students at George Washington University
- Active mentor for residents and fellows in clinical decision-making, research development, and career progression
- Contributor to fellowship curriculum development and multidisciplinary tumor board discussions
- Experience in clinician-educator track with focus on integrating evidence-based medicine into training programs
Global & Academic Engagement
- Active involvement in global oncology initiatives addressing disparities and access to care
- Contributor to research and education programs focused on cancer in conflict and low-resource settings
- Multilingual (Arabic, English, French), enabling cross-regional collaboration
- Participant in international workshops including FDA/ASCO programs and ASCO Quality Training initiatives
- Advocate for equitable cancer care delivery and inclusive clinical research representation