Kaltsos Euthymios is a Pediatric Otolaryngologist and maintains a private practice in Galatsi. He is a PhD candidate in Pediatric Otolaryngology at the Medical School of the National and Kapodistrian University of Athens and holds a postgraduate diploma in Emergency Health Care from the same University. Additionally, he holds a medical degree from Aristotle University and has received further training at the University Otolaryngology Clinic of Innsbruck, Austria, focusing on Pediatric Otolaryngologic Surgery and Head and Neck Surgery. He serves as the Deputy Director of the Otolaryngology Clinic at the Pediatric Medical Center of Athens and collaborates with Gaia Maternity Hospital. In his private practice, he provides specialized services for the diagnosis and treatment of all otolaryngological and pediatric otolaryngological disorders and performs surgeries such as tonsillectomy and adenoidectomy, ventilation tube insertion, nasal septum correction, endoscopic nasal surgery, rhinoplasty, phonosurgery, and tympanoplasty. Furthermore, he has presented numerous publications at international and national conferences, is a member of various otolaryngology societies, and publishes research in both Greek and international scientific journals.