Dr Yeo Pei Shan is a Senior Consultant in the Department of Endocrinology at Tan Tock Seng Hospital. Dr Yeo also holds the position of Visiting Consultant in the Department of Maternal-Fetal Medicine at KKH, with a special interest taking care of women with metabolic health issues from the pre-conception to post-partum journey.

Dr Yeo completed undergraduate medical training at the National University of Singapore in 2011, obtained Membership at the Royal College of Physicians and Masters of Medicine (Internal Medicine) in 2014 and attained her specialist accreditation as an endocrinologist in 2017. She went on to pursue a fellowship in metabolic disorders in pregnancy in 2023 with King's College London (Denmark Hill).

Apart from clinical work, Dr Yeo has a special interest in patient empowerment and education and is a member of TTSH DM Steering Committee and is the TTSH lead for NHG Health DM Education Workgroup. Apart from patient education, Dr Yeo is vested in medical education. She holds the position of NHG Health Internal Medicine Programme Director since July 2024. Additionally, she serves as a regular examiner at local medical school examinations.