He graduated from the Medical Faculty of Aegean University in 1989 and completed his residency in Otolaryngology at İzmir Atatürk Education and Research Hospital in 1994. Following this, he spent a year as a research fellow in the Department of Otolaryngology at the University of Pittsburgh. In 1997, he received his first academic appointment at Pamukkale University. He is affiliated with several professional organizations, including the Turkish Otolaryngology and Head and Neck Surgery Association, the European Academy of Otology and Neurotology, the Neurotological and Equilibriometric Society, and the Mediterranean Society of Otology and Audiology. He has authored numerous articles, book chapters, and books in both Turkish and English, primarily focused on Otology and Neurotology. In recent years, his research has centered on hearing reconstruction, implants, endoscopic ear surgery, vestibular disorders, and vestibular rehabilitation.

I am an ENT surgeon and researcher specializing in the vestibular system, with a particular focus on bilateral vestibulopathy. My research focus on gait and balance impairments associated with bilateral vestibulopathy, as well as vestibular implants. I earned my PhD from Maastricht University in the Netherlands, where I was affiliated with both the Ear, Nose, and Throat (ENT) department and the Department of Movement Sciences. I hold a Bachelor's degree in Clinical Medicine from Guangzhou Medical University, China and a Master's degree in Otorhinolaryngology from Guangxi Medical University, China.

John is a Consultant ENT Surgeon at the Norfolk & Norwich University Hospitals NHS Foundation Trust; and Honorary Professor of Otolaryngology at the University of East Anglia.  John has a subspecialist interest in Otology and Neurotology.