Dr. Nazzal obtained his MD degree from Istanbul University's Cerrahpasha Medical Faculty and is certified as Community Medicine Specialist by the Arab Board of Health Specializations.

Dr. Nazzal has great expertise in designing, managing, and teaching courses in Research Methods, Epidemiology, Biostatistics, Health Planning, and Health Promotion, positioning him as an important figure in the field of health sciences education. He has extensively engaged in several research activities, taking leadership roles, managing projects, and providing courses on research methodologies and statistical analysis.

Dr. Nazzal has authored over 70 papers, which have been published in prestigious international peer-review journals. Aside from his scientific accomplishments, he currently serves on the Editorial Board of the Palestinian Medical and Pharmaceutical Journal and as a reviewer for several international peer-reviewed journals.