dr. Johanes Purwoto, Sp.PD-KEMD, FINASIM is a specialist in internal medicine in the Endocrine, Metabolic and Diabetes subspecialty who has studied at the University of Indonesia. He is experienced in the field of Diabetes and Thyroid disease. He is a member of the Indonesian Doctors Association, Indonesian Association of Internal Medicine Specialists, Association of Indonesian Endocrinologists, AACE (American Association of Clinical Endocrinologists).