Born in Argentina, where he studied and completed his medical degree at the end of 1972. At present and for the past 21 years, he is in private practice as a Medical Oncologist and the Oncology Director of the Sandton Oncology Centre, Johannesburg.
Dr Vorobiof is a registered Specialist Physician with the sub-speciality of Medical Oncology. He has a MD degree from the University of Pretoria and has published more than 100 peer reviewed articles and abstracts. He has delivered papers at many local and international meetings and congresses.
He is a member of several national and international oncologic societies and served on the International Affairs Committee of the American Society of Clinical Oncology (ASCO) (1999-2001).
Currently Regional Representative (Sub-Saharan countries) to European Society for Medical Oncology (ESMO) and was a member of the Developing Countries Task Force of ESMO. Participating Faculty Member of the Oncology Board, Faculty of 1000 Medicine.
Dr Vorobiof was the editor of "Understanding Oncology", for 8 years from its inception.
He currently is on the editorial board of various oncologic international medical journals (Annals of Oncology, The Breast, Cancer and Chemotherapy Reviews, The ASCO Post, etc.), and the local editor of Annals of Oncology, Southern Africa Excerpts. Since January 2008, he is an Associate Editor for the Annals of Oncology.
Founder member and past Chairman (1999-2005) of the South African Society of Medical Oncology (SASMO). Past Chairman of the South African Melanoma Advisory Board. Founder member of the International Oncology Foundation (IOF). Founder member and past director of the South African Oncology Consortium.
Dr Vorobiof was also a Trustee of the Moments in Time Trust and past Director of the Prostate Cancer Foundation of South Africa.
For the past 21 years he has been involved in clinical research nationally and internationally with the International Breast Cancer Study Group, the WHO Melanoma Group, EORTC, SAKK, and with other multicentric co-operative groups in South Africa, Australia, Europe and North America.
"If or when cancer is going to be conquered, it will be through the hard work of multidisciplinary teams including a variety of scientists and physicians committed to doing what is right for, and in the best interests of people with cancer."