[2] Its operations represent a major change in the history of the government's role in the delivery of medical care to the community.

Naval forces assumed responsibility for the island's medical needs at the turn of the 20th century when the United States took formal possession of Guam.

These services continued with the U.S. Navy's delivery of care after World War II, and culminated with their donation of the first hospital facility of the Government of Guam's Department of Public Health and Welfare in the postwar era.

[5] Today, the GMHA lab is also accredited by Clinical Laboratory Improvement Amendments (CLIO).

[8] To compound its financial troubles, as of June 2019, it has faced de-certification by CMS, the federal agency that administers Medicare/Medicaid funding.