Istvan completed his studies in Medicine and Biomedical Engieneering and graduated in 2008 in Budapest, Hungary. He did his doctoral research in Oncology and completed his vocational training in 2012. He worked in the United Kingdom in General Medicine and General Practice and has been living in Drury, New Zealand since 2017. Beside of his current role at Pukekohe, he works at a busy accident and emergency clinic, and he is working on his PhD.
In his free time, he is actively engaged in canine welfare, he is the New Zealand ambassador for the SPCA Cook Islands.