Quest Diagnostics

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554 E San Bernardino Rd Ste 103
Covina, CA 91723
The Quest Diagnostics difference. Bringing together quality, speed, and technology to power advanced, affordable diagnostics for all. No trade-offs required.
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Reviews

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2.566 reviews
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Lily H.
5/30/2022

Made a last minute appointment online literally the night before and hoped I would be in their system the morning of. I made the earliest appointment that they had. PSA appointment only! There...

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Angela C.
6/5/2025

I hate Quest now. Expecting customer service? Forget it. They've now turned all the offices into prison like rooms with grey walls and kiosks to check in. There's no way to get help if you need it...

Nancy M.
10/1/2025

The nurse who tried to draw blood from me was not experienced enough. She would put the needle in my arm and then look for a vein ! This caused me a lot of pain. She had to pull the needle out and...

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Kit T.
4/12/2025

I know many places are given a few stars. But the reason for 5 is because l made an appt; got in and out literally within 10 min of checking in. Although they are short staffed, l was still able...

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Oscar F.
5/6/2025

This branch doesn't accommodate walk in as they should or if ever, you have to wait 5 hours for your turn un like the ones on the east coa st where the service is very accommodating.

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