Quest Diagnostics

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4050 Barranca Pkwy Ste 120
Irvine, CA 92604
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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2.5186 reviews
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Sasha V.
6/27/2025

It's my favorite lab I tried many labs but this one is the most good and highly recommended by me

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Sy h.
3/25/2025

Worse quest location ever Rude inhumane and extremely careless staff Even with an appointment and no one in the lobby I see staff walking around and doing nothing to help earlier (just picking up...

Hong W.
3/11/2025

The blood drawing technique is superb, it hits the nail on the head, the attitude is good, thank you Phlebotomist's Name: Ashley say :thank you again

Me M.
6/23/2025

this QD on 4050 baranca sure 120 is very inefficient. Long waits even with an appointments. one staff didn't wait for me to manage the lab order from my doctor's office and sent me home.

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Amy L.
11/20/2024

Arrived at 11:31 am for a 11:40 appt and it's now 12:22 pm. Quest is THE WORST... and this is not the worst Quest in Irvine. Why do I bother coming on time? There aren't even enough seats in the...

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