Public health physician with extensive work experience across the globe in low-, middle- and high-income countries. Following initial clinical practice, has worked as a frontline public health practitioner, strategist, advocate and leader in various settings. Led local public health authorities in the UK over a 10-year period as a Director of Public Health before joining WHO as a Health Systems and Policy Specialist for the Pacific sub-region leading on supporting the small island developing states of the Pacific to develop resilient health systems, widen coverage to affordable healthcare, and protect their population from public health emergencies and the impact of climate change. Recently moved to lead the WHO specialized office for Environment and Health for the Western Pacific WHO Region based in Seoul, RoK.