About the Lab

The San Bernardino County Public Health Laboratory office staff can answer questions concerning test information, patient results, specimen collection and transport, courier service, supply requests, and test service availability. The laboratory office staff may also be able to help you identify an alternative source of testing when tests are not performed in our laboratory.

Our Goal

To support County health programs by providing accurate and timely results in order to help reduce morbidity and mortality.

Our Mission

To promote and improve the health, safety, well-being, and quality of life of San Bernardino County residents by identifying and preventing the spread of infectious diseases by providing quality and timely laboratory services.


State of California Department of Public Health – Public Health Lab #1231

CLIA Certificate ID#05D0665059

Contact Information

San Bernardino County
Department of Public Health
Public Health Laboratory
150 East Holt Boulevard
Ontario, CA 91761
Phone: (909) 458-9430
Fax: (909) 986-3590

Laboratory Director
Linda Ward, MA, PHM

Hours Of Coverage

Monday: 8:00 AM to 5:00 PM
Tuesday: 8:00 AM to 5:00 PM
Wednesday: 8:00 AM to 5:00 PM
Thursday: 8:00 AM to 5:00 PM
Friday: 8:00 AM to 5:00 PM
Saturday, Sunday, & Holidays: Available for emergencies only.