Adachiku Ishikaikan Kyujitsuoukyu Shinryojo

This is a holiday and emergency outpatient clinic run by the Adachi Medical Association, located on the ground floor of their association building in Adachi, Tokyo. It’s not a regular clinic — it only operates on holidays and Sundays, specifically for urgent cases when your usual doctor is closed. Think sudden fever, bad stomach pain, that kind of thing. It’s internal medicine only, so don’t show up expecting orthopedics or eye care.

The website has some English content, which suggests the association is at least aware that non-Japanese patients exist. Whether that translates to actual English-speaking staff at the reception desk on a Sunday is a different question. Adachi-ku has a sizable foreign resident population, so there’s a decent chance someone can manage basic communication — but don’t count on a fluent consultation. Bring a translation app, have your symptoms typed out in Japanese if you can, and keep expectations realistic. It’s emergency coverage, not a boutique international clinic.