Dr. Newhouse completed her residency in Public Health and Preventive Medicine at the University of British Columbia. She initially worked as a Medical Health Officer at Vancouver Coastal Health, where her regional portfolio focused on communicable disease control and injury prevention.

She joined Fraser Health as a Medical Health Officer/Medical Director in 2019, where she is the regional lead for environmental health services, community care licensing, drinking water services, and injury prevention.

She provides local communicable disease and outbreak management; during the Covid-19 pandemic, her focus is on the management of transmission in community sites and workplaces. She is also a clinical faculty member at the School of Population and Public Health at the University of British Columbia.