DR. DANIELLE MARTIN is a family physician in Toronto and Vice President of Medical Affairs and Health System Solutions at Women's College Hospital. She is also an assistant professor in the Department of Family and Community Medicine, the Institute for Health Policy Management and Evaluation, and at the School of Public Policy and Governance at the University of Toronto. In 2006, her first year of practice, she helped launch Canadian Doctors for Medicare, representing Canadian physicians who believe in a high quality, equitable, and sustainable health system and chaired its board until 2013. She was named Canada's 8th most powerful doctor by The Medical Post in September 2015 and is a regular contributor to CBC-TV's The National. She writes a monthly column for Chatelaine. As an outspoken advocate for Canada's health-care system, she was invited to speak to the United States Senate Sub-committee in March 2014. The video of her testimony went viral on YouTube, with over 1.3 million views.