Quest Diagnostics

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15000 Kensington Park Dr Ste 190
Tustin, CA 92782

Quest Diagnostics in Tustin, CA is a leading provider of comprehensive laboratory testing services, offering a wide range of tests for patients and healthcare professionals. From COVID-19 testing to testing for various conditions, patients can conveniently make appointments, access their test results online, and even buy their own lab tests without a doctor's visit. With a focus on efficiency and accuracy, Quest Diagnostics is committed to providing trusted information and fast action during the COVID-19 health crisis.

Healthcare professionals can also benefit from Quest Diagnostics' services, including access to a comprehensive test directory, billing coding guidelines, and lab tools to streamline their workflow. Additionally, the company offers clinical consultations from industry-leading medical experts, allowing healthcare professionals to complement their expertise and provide the best possible care to their patients. With a commitment to innovation and efficiency, Quest Diagnostics is a trusted partner in the field of laboratory testing.

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2.5100 reviews
Photo of Gerina O.
Gerina O.
7/31/2025

Check in is near the urgent care check in for HOAG. There are a couple of kiosks where you check in. You need your driver's license and insurance card if you're a walk in. Check in was pretty fast...

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Richard D.
12/9/2024

Wow, I don't think I've ever been in and out of a medical facility faster than this! I came in with an appointment, and was out within 10 minutes I believe. I came here to have some blood...

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David T.
11/14/2024

Lots of low reviews here and I understand that, but this is still my go-to for tests. Don't come here without an appointment, make sure your doc sent the lab order to Quest, bring you ID and...

Henry S.
5/13/2025

Made an appointment but while doing the self check in, which I find very impersonal, only one kiosk was barely functioning. This is what my arm looked like a few hours after the tech dug around...

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Colin O.
11/21/2024

Used these guys before and no problem. Then i came here today with an appointment and I was told lab was closed and i had to go to another lab. They said not to worry other lab not busy. Thats was...

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