Brief History

March 24, 1926 – The hospital was founded, and named Occidental Negros Provincial Hospital (ONPH)

25-bed capacity

• Dr. Sixto Y. Orosa Sr. (Author of the landmark Philippine Provincial Hospital-Act) was the first Chief of the Hospital.

1937 100 bed capacity

Inauguration day March 4, 1926

In 1941 – War broke out and the Hospital was closed to the Public. The building was used by the Japanese Imperial Forces

June 1942 – Reopened to the public and transferred to the old maternity hospital.

February 1945 – After the war, hospital returned to present site.


June 7, 1968 – Name changed to Corazon Locsin Montelibano Memorial Hospital in honor of the lot donor.

1962 – Designated as one of the training government hospital for nurses in western Visayas.

1977 300 bed capacity

Jan. 21, 1982 –  400 bed capacity w/o corresponding increase in plantilla position until 2013.

July 3, 1984 – Reclassified into regional hospital and renamed CLMMRH.

May 30, 2012 – The National Historical Commission of the Philippines installed the historical marker at the CLMMRH Heritage Building, declaring it a national site.

April 14, 2014 – CLMMRH was ISO Certified on Patient Care Management and on Residency Training Program the following year ( April 29, 2015 ).