Diagnostiki Athinon is a medical laboratory established in 2007 by Vasileios Sideris, a Doctor-Biopathologist and Biologist, and a Hellenic Pasteur Institute research associate. Diagnostiki Athinon offers patients specialized tests of Preventive and Functional Medicine along with all the traditional laboratory analyses.

Ever since its creation, the lab has focused on highly specialized and research-oriented tests, with an emphasis on research and high-level laboratory medicine.