Associate Professor Dr. Jeyakantha Ratnasingam obtained his undergraduate degree from the National University of Malaysia and his Masters Degree in Internal Medicine from University of Malaya. He completed his advanced training in endocrinology with the Ministry of Health Malaysia and had undergone a fellowship in endocrinology at the Princess Alexandra Hospital, Brisbane, Australia. He manages patients with type 2 and type 1 diabetes, osteoporosis, pituitary, thyroid, gonadal and adrenal disorders. To further pursue his interest in neuro-endocrinology, he has also undergone an attachment at the Auckland City Hospital Pituitary Centre in New Zealand and the Cambridge University's endocrine clinic at the Addenbrooke's Hospital in the United Kingdom. He is currently a senior consultant endocrinologist and the Head of Endocrinology at the University of Malaya Medical Centre, Kuala Lumpur.

Besides managing patients with endocrine disorders, he plays an active role in investigator as well as industry initiated clinical trials in the field of endocrinology, diabetes and osteoporosis. He has published papers in academic journals and actively speaks at scientific meetings. He is currently the council member of the Malaysian Endocrine and Metabolic Society, Diabetes Malaysia and the Malaysian Osteoporosis Society. He also sits on the editorial board of the Asian Journal of Diabetology. Dr. Jeya is particularly interested in the field of neuroendocrinology, aiming at improving outcomes for patients living with pituitary disorders.