Frank graduated MBChB, from Otago University in 1985, and subsequently undertook general surgical training in New Zealand obtaining FRACS in 1992. Following a period of further overseas training at the Mayo Clinic Mn, USA (colorectal surgery) and Ninewells, Dundee Scotland (laparoscopic fellowship) he took up a position on joint clinical staff with the at University of Otago Christchurch and what is how CDHB in 1996. Frank was awarded a personal Chair in Colorectal Surgery in 2000, and subsequently took over as head of the University Department of Surgery in 2006.
Frank has a MMedSc from Otago University and has fellowships from the Royal Australasian College of Surgeons, American College of Surgeons (FACS), The American Society of Colon and Rectal Surgeons (FASCRS),the New Zealand Medical Association (FNZMA), and is an honorary member of the Association of Coloproctology of Great Britain and Ireland (ACGBI), and an honorary fellowship from the College of Surgeons of Ireland (FRCSI).
Frank has been the Chairman of Section on Colon and Rectal Surgery RACS, Chair of ANZ Training board in colorectal surgery, Chair of the Guidelines Development Team writing the Colorectal Cancer Management Guidelines for the New Zealand and subsequently the Chair of the National Bowel Tumor Standards working group. He was also Member of NZ Cancer Control Council Committee. He has also been an examiner for the NZMC and the RACS.
He is Editor in Chief of the New Zealand Medical Journal (NZMJ) since 2002, and on the editorial boards of 4 other journals. He is Member of the executive of Colorectal Surgical Society of Australia and New Zealand (CSSANZ). He is a director of the MAS group of companies and trustee of the Caterbury Charity Hospital and the Chair of the Christchurch Cancer Foundation, and the National Prostate Cancer Registry.
He has published over 450 peer reviewed publications and 250 presentations at national and international meetings. His major interests are surgical outcome based research, aetiology of colorectal cancer, and the role of the microbiome in colonic disease.