Dr. Ismail is Chair of The Canadian Conference on Dementia (CCD) and of the Canadian Consensus Conference on the Diagnosis and Treatment of Dementia, which generates Canadian dementia guidelines, the most recent iteration of which were published in 2020. He is also the Academic Co-chair of the US Alzheimer’s Association-ISTAART Neuropsychiatric Syndromes Professional Interests Area. Dr Ismail led the ISTAART development of the neurobehavioural syndrome Mild Behavioural Impairment (MBI) and the MBI Checklist, and co-led development of the new research criteria for biomarker and phenotypic classification of psychosis in AD and related dementias. Dr. Ismail is a contributor to international working groups advancing nosology in neurodegenerative diseases. He is an author on the revised IPA criteria for Psychosis in Neurocognitive Disorders, ISCTM-ISTAART criteria for Apathy in Neurocognitive Disorders, and the upcoming revision of the IPA criteria for Agitation in Neurocognitive Disorders.