[1] Founded as the Tokyo Metropolitan Psychiatric Asylum in Ueno Park in July 1879, the institution relocated several times before moving to its current location in Setagaya in November 1919.

The major reforms include: The hospital got the current name with the start of the metropolitan system in July 1943.

[1] Matsuzawa Hospital is a public facility under the jurisdiction of the Tokyo Metropolitan Government.

As a general rule the hospital will provide medical treatment to anyone who is 15 years old or older.

For patients who are 14 years old or younger they will be taken to the Tokyo Metropolitan Children's Medical Center.