Dimitrios Xatzidakis, who maintains a private practice in Chalandri, is an Emeritus Professor of Pathology and Endocrinology at the University of Athens. From 2003 to 2014, he served as Head of the Endocrinology and Metabolism Unit at the University General Hospital “Attikon.” He has extensive professional experience, including 3 years as an Internal Assistant in Pathology Clinics at hospitals in New York, New York Infirmary and Bronx-Lebanon (Albert Einstein College of Medicine), as well as 3 years as a Consultant at Cook County Hospital in Chicago. He continued his career at renowned University Hospitals in Greece (Alexandra General Hospital of Athens, Evangelismos General Hospital of Athens, University General Hospital “Attikon”) and abroad (Department of Internal Medicine - Endocrinology Clinic at the University of Heidelberg as a Postdoctoral Fellow of the Alexander von Humboldt Foundation). In his private practice, he offers specialized services to patients with Bone Metabolism disorders, Diabetes Mellitus, and thyroid gland conditions. The Professor is a member of Scientific Societies related to his field of expertise, both Greek and International. His experience in Endocrinology is the result of ongoing professional development, continuous professional training, and academic research, combining theory with practice over many years.