Quest Diagnostics

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15000 Kensington Park Dr Ste 190

Tustin, CA 92782

+1 (442) 256-1508

https://locations.questdiagnostics.com

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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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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Ghh K.

9/20/2025

I wish to give them zero star, this location of lab quest ( Tustin) so bad, Messy, no respect for the other's appointments time .They will make you wait forever even if you have appointment with...

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Cecilia C.

9/29/2025

The waiting was bad, and the attitude of the person giving instructions not very nice....i was thankful they took in as a walking thou....

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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...

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Irvine Scientific

Irvine Scientific entered the life-science industry in 1970, and quickly earned a reputation as a leader in cell culture media. In the 1980's the company began combining its mastery of human embryo culture media with revolutionary capabilities in serum-free media. Today, Irvine Scientific is a diversified company. Irvine Scientific sells products in a variety of markets, including media and other related cell culture systems, specialty bulk sera products (as components for the diagnostics market), media for the cytogenetics laboratory as well as a complete product line for the reproductive laboratory. In the late 1980 s Irvine Scientific further expanded and acquired the serum-free cell culture and diagnostic product lines from Hana Biologics. Most recently, Irvine Scientific has emphasized its manufacturing capabilities for custom formulations and custom packaging. Irvine Scientific's efforts are directed toward continued growth of its products and the markets it serves. Irvine Scientific is located in Santa Ana, Calif.