Dimitrios G. Katehakis heads the Center for eHealth Applications and Services (CeHA) at the Institute of Computer Science, Foundation for Research and Technology – Hellas (FORTH) since 2010. His work focuses on data integration analysis and the design of object-oriented systems and distributed architectures for forward-looking, integrated EHR services. Ongoing and past participation in projects, co-funded by the EU, include Level Up, VELES, X-eHealth, MyPal, CAREMATRIX, INCAREHEART, eCARE, ROSIA, STARS, RELIEF, e-SENS, EURECA, EHR-Q-TN, EHR-IMPLEMENT, INFOBIOMED, PICNIC, RETRANSPLANT, TEMeTeN, HECTOR and CreteCT. Experience includes also working with the Medical School of the University of Maryland at Baltimore for the IONDT (US Federal) and MCR (MD State, Dept. of Health and Mental Hygiene - CDC) projects, as well as with the National Defense Ministry of Greece, the Association for Research, Technology & Training, and the Hellenic Telecommunications Organization (OTE). Dimitrios is a certified Project Management Professional (PMP). The period 2005-2010, he was responsible for the implementation of four Integrated Information Systems FORTH developed for four Regional Health Authorities in Greece. Since 2011 he has been scientific responsible for more than 400 projects related to operational EHR systems in the National Health System of Greece (NHS). The period 2016-2018 he served as a representative of the General Secretariat for Research and Technology at the National Board of eHealth Governance in Greece. The period 2014-2024 he served as the elected General Secretary of HL7 Hellas. The period 2018-2021 he served as the elected General Secretary of the Hellenic Health Informatics Association. The period 2020-2022 he served as a member of the Mental Health Committee at the Central Board of Health of the NHS. Since 2022 he is the appointed Director of the Hellenic Digital Health Cluster. Since 2023 he represents the smartHEALTH European Digital Innovation Hub in the Innovation Team of the General Secretariat of Public Administration in Greece. Dimitrios has several publications in international journals, as well as presentations in scientific conferences and workshops worldwide. He also acts as a regular reviewer and a program committee member for a number of premier journals and conferences, such as BMC HSR, Elsevier CMPB, IJMI, JBI, Emerald Publishing TGPPP, Hindawi IJTA, JHE, HL7 IHIC, IEEE BHI, BIBE, CBMS, EMBC, JBHI, IET Software, IGI Global IJRQEH, IMIA ACI, MEDINFO, EJBI, Springer Nature and many more.