Professor Catto is the co-founder of London Osteoporosis Clinic and is a professor of medicine at the Universities of London and Aberdeen. He was president then became chair of the General Medical Council until April 2009. He has been interested in bone health for many years and advocates better care for osteoporosis and metabolic bone diseases.
He obtained the first medical bursary to study medicine at the University of Aberdeen, winning a Carnegie scholarship to Northwestern University (Chicago) in 1968, and graduating MB ChB with honours in 1969 as the most distinguished graduate of the year
Back in Aberdeen as a senior lecturer in medicine and honorary consultant physician and nephrologist, Graeme Catto created an active renal research group studying transplant immunology, renal bone disease and the facilities required for patients with kidney disease. He graduated with a DSc in 1988. Over time, he became medical director of Aberdeen Royal Infirmary, professor then dean and vice-principal of Aberdeen University.
Graeme Catto is a founder member of the Board of the Qatar Council for Healthcare Practitioners, Vice-President of the Academy of Experts and Patron of the Medical Council on Alcohol. He was a member of the Commission on Assisted Dying and co-chaired a working party on medical and dental student numbers from 2010-12. At the beginning of 2012 for five years he became chairman of both Lathallan Schoo and Dignity in Dying, an organisation seeking to legalise assisted suicide for terminally ill adults.
He has published more than 200 papers, regularly examine theses and referee papers for medical journals and grant applications to research councils and medical charities. For the last 30 years, he has been interested in clinical and laboratory aspects of renal medicine.