Quest Diagnostics

Lab Testing at Quest Diagnostics - San Gabriel West Las Tunas - Employer Drug Testing Not Offered

Quest Diagnostics Patient Service Center in San Gabriel, CA 91776.

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Popular tests at this location:

TSH Lipid Panel CBC A1C Testosterone Vitamin D CMP

Address

416 W Lastunas Dr Ste 204
San Gabriel, CA 91776
Los Angeles County

626-238-5666

Hours

Monday	7:30 AM – 12:00 PM
Tuesday	7:30 AM – 12:00 PM
Wednesday	7:30 AM – 12:00 PM
Thursday	7:30 AM – 12:00 PM
Friday	7:30 AM – 12:00 PM
Saturday	Closed
Sunday	Closed

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About this location

Quest Diagnostics Patient Service Center. Quest Diagnostics operates one of the largest networks of clinical laboratories in the United States, offering a wide range of diagnostic tests for patients, physicians, and employers.

Listing last updated 2026-04-25.