Multilingual hospital search (site), provided by Japan National Tourism Organization(JNTO).
http://www.jnto.go.jp/eng/arrange/essential/emergency/mi_guide.html#search
This is very useful not only for travelers but for the residents in Japan.
These kind of information has been provided by
district municipalities but always difficult to search multiple area or
language problems.
If you are having trouble to find information, please try this service.
*Screenshot from Japan National Tourism organization