Goichiro Toyoda, 34, has an impressive resume. A graduate of the prestigious University of Tokyo faculty of medicine, Toyoda worked as a brain surgeon in Tokyo before leaving to become a research scholar at Children¡¯s Hospital of Michigan.

Toyoda, however, eventually quit what looked to be a perfect medical career path for an elite doctor, hoping instead to work from the outside to make Japan¡¯s health system sustainable and efficient.

¡°Japan¡¯s current health system cannot be sustained if it continues to be the way it is now,¡± said Toyoda, co-CEO of Medley Inc., a Tokyo-based medical venture.