Asst Prof Mok is a Senior Consultant with the department of Cardiology, Tan Tock Seng Hospital. He heads the pulmonary hypertension service and runs the structural clinic. He serves as a visiting consultant at National University Hospital where he performs interventions for congenital heart disease.

He graduated from Yong Loo Lin School of medicine, National University Singapore in 2010, attained his membership to the Royal College of Physicians (UK) in 2013 and attained specialist accreditation in Cardiology in 2017. He completed his fellowship in Pulmonary Hypertension in 2019 at Toronto General Hospital, University Health Network, Canada, before setting up the Pulmonary hypertension service in TTSH in 2020.

He believes in making the most advanced of therapies accessible for all patients, regardless of background or means, delivered in an authentic way, in line with what the patient values.