Prof Greeff holds a Bachelor’s degree in Medicine and Surgery MBChB (Pret); Postgraduate qualifications in Primary Health Care, FCFP (SA); MPharmMed (Pret); Pharmaceutical Medicine FFPM (Royal Colleges of Physicians (UK)) and an MD (Psychiatry) (KZN).
After being involved in clinical research in the Pharma Industry for 13 years, he founded Clindepharm International, the first Contract Research Organisation in South Africa in 1990, which he sold to Quintiles Transnational Corporation in August 1997 and continued his employment at Quintiles.
In 2002 he was appointed CEO of Early Development & Laboratory Services worldwide for Quintiles in the USA and in the same year as President: Global Product Development Services (PDS), and was appointed on the Executive Committee of Quintiles.
Oppel chaired the Asia-Pacific Management Board of Quintiles TRN from 2005 – 2013 and was Chairman of the Quintiles-Fisher JV, Cenduit, an ITS enterprise in 2007.
In August 2008 Prof Greeff was appointed professor and head of the Department of Pharmacology, School of Medicine, Faculty of Health Sciences at the University of Pretoria and relocated back to South Africa.
Prof Greeff serves on the board of 13 companies in the healthcare industry in SA, the USA and India.