There is a website you can search for hospitals that offer consultation in languages other than Japanese.
The name of the site is “For safe travel in Japan: Guide for when you are feeling ill“.
In addition to Japanese, machine translation is available in Korean, English, Simplified Chinese, and Traditional Chinese.
When visiting a hospital, the “Multilingual Medical Questionnaire” is useful.
The medical questionnaire for each department is translated in 23 languages.
It can be downloaded for use from the URL.