Since 2012, Dr. Esther Bui has worked as a neurologist and epilepsy specialist focusing on women's neurological health. She is an assistant professor and clinician educator within the Division of Neurology, Department of Medicine at the University of Toronto.

Dr.Bui's pregnancy and epilepsy clinic is dedicated to fertility, pre-conception counselling, pregnancy and postpartum care for women with epilepsy. As well, the women's epilepsy program has expanded to explore how menses, ageing, perimenopause and menopause can impact a woman's epilepsy.

In 2015 Dr. Bui created a training program for resident physicians to learn more about Women's Issues in Neurology. Physicians across Canada as well as the US and Europe come to learn more about Women's Neurology.

Since 2017, Dr. Bui founded Canada's first and only accredited Women's Neurology Fellowship at the University of Toronto.

She is currently the co-Director of the Women's Neurology Fellowship Program. the Director of the Epilepsy Fellowship program and the Director of Education for the Canadian League Against Epilepsy.

Dr. Bui also leads epilepsy and EEG education at both the undergraduate medicine and postgraduate medicine levels at the University of Toronto. She is co-director of Education at the Krembil Brain Institute.

The Women's Epilepsy program is based at the Toronto Western Hospital, Krembil Brain Institute, a University of Toronto teaching hospital.