Nikolaidis Georgios is an Endocrine Surgeon with a private practice in Kalamaria, Thessaloniki. He graduated from the Faculty of Medicine at Université de Médecine et Pharmacie in France and obtained his General Surgery specialty title at the General Hospital of Thessaloniki "Papageorgiou." He trained in Oncologic Surgery, Breast Surgery, and Laparoscopic Surgery as an assistant surgeon at the same hospital. He continued his training at the General Hospital of Thessaloniki AHEPA as a scientific associate, where he continues to deliver numerous lectures and train medical students who have completed their third year of studies. He has extensive experience in the diagnostic and interventional use of breast ultrasound and is among the few surgeons in Greece certified in Advanced Laparoscopic Surgery by the Surgical Society of Northern Greece in collaboration with the 4th Surgical Clinic of Aristotle University. He has attended numerous seminars on the diagnostic approach and surgical treatment of breast diseases throughout Greece and abroad. He has served in the Surgical Department of the Military Hospital of Xanthi, the Surgical Clinic of the General Hospital of Ptolemaida "Bodosakeio," the General Hospital of Kozani "Mamatsio," the Health Center of Siatista, and in the emergency surgery, minor surgery, and vascular surgery department of "Papageorgiou" Hospital. Currently, he serves as a scientific associate at the University Hospital of Thessaloniki AHEPA and leads numerous oncological and other surgeries, with emphasis on breast-related cases, at Euromedica General Clinic of Thessaloniki, the Private Clinic of Thessaloniki "Agios Loukas," and Genesis Clinic Thessaloniki, where he is involved in the full spectrum of activities.