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Clinical Laboratory Services at San Antonio Regional Hospital serve those who are hospitalized, referred by their physician, and those who are receiving home care. The laboratory is staffed 24 hours a day with state-licensed and certified clinical laboratory and pathology health care professionals under the direction of the laboratory medical director. The laboratory works with medical staff and other departments in the diagnosis and treatment of patients through technical analysis of specimens. Our full-service clinical laboratory also offers blood bank and pathology services.

Accreditation and Our Team

The College of American Pathologists, The Joint Commission, the State of California's Department of Public Health, and the Centers for Medicare and Medicaid Services accredit and regulate and ensure compliance with the Clinical Laboratory Improvement Amendment (CLIA) guidelines.

The medical director is certified in both anatomical and clinical pathology. Staff pathologists are board certified by the American Board of Pathology and provide consultation services to referring physicians. Technical team members  performing moderate and highly complex testing are licensed by the State of California as clinical laboratory scientists. Care team members drawing blood are certified phlebotomists.

Convenient Locations

You may have your lab tests and services performed at these locations:

1100 San Bernardino Road, Second Floor, Upland, CA 91786 
(Corner of North 11th Avenue and San Bernardino Road)
Hours until further notice:
Monday to Friday 7:00 AM to 4:30PM

Closed Saturday, Sundays & Holidays


7777 Milliken Avenue, Rancho Cucamonga, CA 91730
(Church and Milliken, one block north of Foothill Boulevard)
STAT Testing not available   
Hours until further notice:
Monday to Friday 7AM to 4PM
Saturday 8AM to 12PM
Closed Sundays & Holidays

Sierra-LabSierra San Antonio Medical Plaza
16465 Sierra Lakes Parkway, Fontana, CA
(Between the Citrus Ave. and Sierra Ave. exits on the 210 Freeway)
Laboratory 909.920.4726
STAT Testing not available   
Hours until further notice:
Monday to Friday 7:30AM to 12:30PM
Saturday 8AM to 12PM
Closed Saturday & Sundays & Holidays

Reaching Out

The laboratory offers home blood draws for homebound patients. We also perform lab work at local skilled nursing facilities to promote continuity of care for patients who are transferred from San Antonio to these facilities. For more information or assistance, please contact our client services staff at 909.920.4705.

Donate Blood

Due to COVID-19 precautions, all blood donations on the main campus and at our satellite locations are conducted by appointment only.  Go to to find a San Antonio blood drive near you and schedule an appointment to donate blood.


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