Peter MacCallum Cancer Centre | 60,546 followers on LinkedIn. Peter Mac is an integrated cancer research, treatment and education centre in Melbourne, Australia. | Peter MacCallum Cancer Centre (‘Peter Mac’) is a world leading cancer research, education and treatment centre and Australia’s only public health service dedicated to caring for people affected by cancer. With more than 4,000 employees, including 700+ laboratory and clinical researchers, we’re focused on providing better treatments, better care and potential cures for cancer. Our values are Compassion, Excellence and Innovation.