Dr. Harold Becker is an Adjunct Assistant Professor in the Faculty of Medicine, University of Toronto. He earned a PhD in Medical Biophysics in 1971 after undertaking basic cancer research in cell biology at the Princess Margaret Hospital and Ontario Cancer Institute in Toronto.  He subsequently completed his MD from the University of Toronto in 1975 and later achieved Certification and then Fellowship from the College of Family Physicians of Canada.  Dr. Becker spent more than twenty years in primary patient care in Toronto and taught Clinical Methods as well as The Art and Science of Clinical Medicine to undergraduate first and second-year medical students in the Faculty of Medicine at the University of Toronto.  He achieved Life Membership in the College of Family Physicians of Canada in 2015.

Dr. Becker represented the Ontario Medical Association on the Minister's Committee on the Designated Assessment Centre system at the Financial Services Commission of Ontario from 1996 through 2001 and was the Chair of the working group that wrote the Catastrophic DAC Assessment Guidelines implemented in Ontario in 2001. He was appointed by the Minister of Finance to take part in the Minister's Advisory Panel to Re-Assess the Definition of Catastrophic Impairment under Bill 59 in 2000.

He is the Past President of the Medico-legal Society of Toronto and is a well-known and frequent speaker at insurance industry and medicolegal conferences on the subject of Catastrophic Impairment.

Dr. Becker's background, as well as more than 20 years' experience in the interpretation and use of the AMA Guides 4th edition since 1996, has provided him with a unique and unparalleled perspective on the assessment of Catastrophic Impairment in Ontario.