He heads the Medical Research Ethics Unit (MREU) at Universiti Malaya Medical Centre, where he has led transformational improvements in ethical review systems, spearheaded training programmes for researchers and reviewers, and successfully hosted the 23rd FERCAP International Conference. As Coordinator of UMHealth under the Associate Vice Chancellor's Office, Dr. Phang has also played a key role in institutional strategic health initiatives with the five key health entities in the University.

His research spans molecular diagnostics, digital pathology, cancer immunotherapy, and bioethics. He is actively involved in multiple national and international research projects, including private clinical trials and the Wellcome funded Global Health Bioethics Network (GHBN), a collaboration with the University of Oxford. His scholarly contributions include peer-reviewed publications in pathology, oncology, and bioethics, and he has co-authored national and international policy papers, such as Malaysia’s Decentralised Clinical Trials (DCT) Guidance Document.

Dr. Phang is a Chartered Scientist (UK Royal Society of Biology), a Senior Research Fellow with the GHBN, steering committee of Southeast Asia Bioethics Network, and a member of the Young Scientists Network-Academy of Sciences Malaysia. He has received multiple recognitions, including the Certificate of Excellent Service (UM, 2025), and fellowships from WHO, NIH (USA), and WCG IRB–New York University Langone Health.

Renowned for his commitment to ethical leadership and interdisciplinary collaboration, Dr. Phang continues to influence health policy, research governance, and academic development both nationally and internationally.