[2] The hospital provides health care services for the citizens of Phnom Penh (73%), surrounding provinces (17%), and to foreigners (10%).

In 1975, the clinic was closed and educated individuals including those working at Calmette either fled abroad or were executed if they could not pose as being uneducated.

[5] In 1979 after the Vietnamese invasion of Cambodia, Revolution Hospital as it had been renamed had only three doctors out of the only 40 estimated to be left in the entire country.

[5] A team of Vietnamese doctors was brought in, soon to be joined by Cubans, East Germans, Russians and Bulgarians.

In 1989, Médecins du Monde conducted a study that recommended the hospital be reestablished as a public facility.

Further, the report recommended massive renovations and reconstruction costing $3 million, and that the name be changed to Calmette Hospital.

These changes, funded by the French government and with donations from a variety of other nations since, including Japan, have given Phnom Penh the well-equipped facility it has today.

[5] The mandate of Calmette is to treat the poor and there is always a shortfall as 50% of patients were from indigent backgrounds in a nation lacking social security provisions.

In the aftermath of the Diamond Island tragedy, during which 456 people[7] were trampled to death, Calmette Hospital was a key facility in the treatment and identification of victims of the stampede.