Head of Dept. of Otolaryngology, Beirut Governmental Rafic Hariri Hospital, Beirut
Professor at the Dept. of Otolaryngology, Head and Neck Surgery, American University of Beirut Medical Center, Beirut
Lebanon

He graduated from the American University of Beirut and was granted his Doctorate in Medicine in 1980.

After spending four years at the same institute and completing a residency in Otolaryngology, Head and Neck Surgery, Dr. Hadi joined the Massachusetts Eye and Ear Infirmary – Harvard Medical School in Boston, U.S.A., in 1992, where he finished a fellowship in Endoscopic Sinus Surgery and received the American Board Certification in Otolaryngology, Head and Neck Surgery.
In 1998, he became a Fellow of the American College of Surgeons.

In 2005, Dr. Hadi was appointed Head of Department of Otolaryngology at the Beirut Governmental Rafic Hariri Hospital, Lebanon. In addition, in 2007, he became Clinical Professor at the Department of Otolaryngology, Head and Neck Surgery of the American University of Beirut Medical Center, Beirut, Lebanon.
In 2009, Dr. Hadi was elected Vice President of the Lebanese Society of Otolaryngology, Head and Neck Surgery.

He is regularly involved in medical teaching, gives lectures and courses for medical students and residents addressing a wide range of topics, such as anatomy of the head and neck, in-depth exploration of the path physiology of allergic rhinitis, olfactory disorders, and laryngeal reconstruction.
He also mentors graduate-level microbiology students and has served as a member of the examination committee supervising many thesis’s.
On both a national and regional level, Dr. Hadi conducts the Functional Endoscopic Sinus Surgery Course including the hands-on cadaver dissections.

He has published more than 50 scientific papers in the field and has given technical presentations and lectures at more than 30 international and national meetings, serving as moderator at more than ten international conferences and numerous others in his home country and  neighbouring regions.
His primary research aim is on allergic rhino sinusitis and diseases related to the nose. Among his other research work are studies that focus on pathogens and biofilm formation. In collaboration with the microbiology department, Dr. Hadi conducts research on the pathogenesis of chronic rhino sinusitis.

Dr. Hadi contributes to numerous charitable institutions, including Lions Club and human rights organizations by providing medical care and services.