Dr. Tan is an academic dermatologist and Adjunct Lecturer at University of New South Wales. Prior to moving to New Zealand, he lived in Melbourne and was a consultant at The Alfred Hospital where he provided dermatologic surgery services and educated registrars. Dr. Tan is passionate about sustainability and is a member of the Environmental Sustainability Group (ESG) of the Australasian College of Dermatologists. He has published articles on sustainability and continues to collaborate with researchers globally on the topic.