Mark qualified from Glasgow in 1988, and worked in England and in the North Island, before moving to Southland in 1997. He is a founding director of VetSouth, which employs over 60 vets and services around 300,000 dairy cows.
He has a Masters in Epidemiology, and splits his time roughly 50% clinical; 50% research; and 50% management work. His research interests include clinical field trials on mastitis, reproduction and lameness; antimicrobial resistance and antimicrobial use; and welfare.
He is also MD of XLVets in NZ; sits on the NZVA board; chair of the NZVA's AMR Group; and is also director of NZ's largest group of organic dairy farms.