Phern-Chern Tor completed his medical degree at the National University of Singapore under the Singapore Armed Forces Local Study Award. In his military career he served as Head Psychological Care (PCC) services in the SAF and was responsible for the provision of psychiatric care for all enlistees and regular staff in the Singapore Armed Forces.
In his psychiatric career, Phern-Chern distinguished himself by obtaining the Eli-Lily gold medal and the Singapore Psychiatric Association Book Prize for his undergraduate and postgraduate psychiatric examinations respectively. He has been active in education and research, publishing more than 50 peer reviewed articles and being an adjunct assistant professor in psychiatry and ethics tutor for the Yong Loo Ling School of Medicine, Duke-NUS School of Medicine and Lee Kong Chian School of Medicine. He underwent advanced research and neurostimulation training at the Black Dog Institute, University of New South Wales and Toronto Western Hospital. He is currently Head of Neurostimulation services in the Institute of Mental Health (Singapore).