Health-Metrics was established in 1988. The corporate offices are located in Fresno, California. Health-Metrics, Inc. provides mobile onsite health monitoring services to a growing number of clients throughout California, Nevada and Arizona. Health-Metrics is a ‘Professional Services Provider’ of the National Hearing Conservation Association.


Bret I. Jenkins, Au.D.

Dr. Jenkins received his Doctorate of Audiology from Utah State University.  Upon graduation he completed officer development school for the United States Navy.  He honorably served as an officer, and hearing conservation audiologist within the U.S. Navy, stationed at Naval Medical Center San Diego, CA and Naval Hospital Yokosuka, Japan.

Dr. Jenkins purchased Health-Metrics Inc. in April of 2017, and has provided consistent oversight since that time.


Health-Metrics’ Health Technicians are highly skilled individuals that maintain a ‘people oriented’ approach to their daily functions. Each technician is bilingual in English/Spanish and undergoes extensive, one-on-one training under Dr. Vaughan. Each technician maintains CAOHC certification for hearing and NIOSH certification for the provision of spirometric procedures.