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Quest Diagnostics

Lab Testing at Quest Diagnostics - Los Angeles East 3rd

Quest Diagnostics Patient Service Center in Los Angeles, CA 90013.

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Address

420 E 3rd St Ste 802
Los Angeles, CA 90013
Los Angeles County

Hours

Monday8:30 AM – 12:30, 13:30
Tuesday8:30 AM – 12:30, 13:30
Wednesday8:30 AM – 12:30 PM
Thursday8:30 AM – 12:30, 13:30
Friday8:30 AM – 12:30, 13:30
SaturdayClosed
SundayClosed

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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.