40 (Russian: Государственное бюджетное учреждение здравоохранения города Москвы «Городская клиническая больница № 40 Департамента здравоохранения города Москвы» (ГБУЗ «ГКБ № 40 ДЗМ»)) is a major hospital serving Moscow and the region surrounding it.

By 1899, a wooden house was built, which began to function as a hospital with surgical, therapeutic and maternity beds.

The hospital and outpatient clinic served twenty-five thousand people in the villages of Alekseevsky, Rostokino, Medvedkovo, Leonovo, Sviblovo, Ostankino and Mokhovo near Moscow.

In 2019 the hospital expanded significantly with the addition of a new complex in Kommunarka district in southern Moscow called Novomoskovskoye (Russian: медицинский центр «Новомосковский».

[2][3] Since the breakout of the COVID-19 pandemic in Russia, the Kommunarka complex became one of the largest treatment centers for infected people,[4][5] with president Putin visiting the hospital.