Dr. Benjamin G Barrena M.D.

A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.

Active duty military health care providers not otherwise classified who need to be separately identified for operational, clinical, or administrative processes.

Source: NUCC, CMS