dr. Sonja Agustina Hananto Leonardi, Sp. PD is a specialist in internal medicine who studied internal medicine in Germany. He is a member of the Indonesian Doctors Association, the Association of Indonesian Internal Medicine Specialists and the Indonesian Association of Gastroenterologists and has attended training in Gastrointestinal Endoscopy.
General Practitioner, University of Frankfurt Germany, 1979
Internal Medicine Specialist, Munster University Germany, 1994
