Dr Zacharoulis currently works in New York as a Pediatric Hematology-Oncology Specialist.
Consultant specialist in the treatment of children's tumours Dr Zacharoulis worked at the Royal Marsden Hospital and The Harley Street Clinic. He is a Consultant Paediatric Oncologist specializing in brain tumours (Paediatric Neuro-Oncologist) and other solid malignancies of childhood.
Dr Zacharoulis graduated from Aristotelis School of Medicine, Thessaloniki, Greece. He then moved to the USA where he trained and practised as a Paediatric Oncologist. He is an American Board Certified Paediatrician (trained at Yale and SUNY at Syracuse) and Paediatric Oncologist (trained at Memorial Sloan-Kettering Cancer Center, New York).
Dr Zacharoulis sub-specialised further in Neuro-Oncology (brain, spinal cord and neurogenic tumours) at the Children's Hospital Boston, Harvard Medical School. He was appointed Assistant Professor of Paediatric Oncology at Keck School of Medicine, University of Southern California, Children's Hospital Los Angeles.
His bibliography includes several original papers in peer review journals and book chapters, and he has been a key note speaker on child cancer and its treatment at Paediatric Oncology meetings worldwide.