Quest Diagnostics

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5 Bon Air Rd Ste 119
Larkspur, CA 94939
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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1.546 reviews
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M H.
12/15/2023

Easy. Pro's + Parking easy + Easy check-in, and out Con's - Blood technicians (phlebotomists) have varying degrees of experience (i.e., some hurt / some do not, some are more professional than...

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Eric R.
7/17/2025

After fasting for over 15 hours, I went to Quest as a standby walk in and used the self check in which said I might have to wait for 30 to 60 minutes. After waiting for 1 hour and 20 minutes, an...

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Brendan M.
5/3/2025

This place was disgusting. My son said to me, "shouldn't a place where you're going to get your blood drawn be clean?" I'm attaching pictures of the entry. It was not lit and clearly disgusting....

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Jean M.
12/10/2024

Once you get in, the employee is very nice, upbeat, and efficient. She deserves 5 stars. The rest of the experience from booking an appointment, scarcity of appointments, check in experience,...

Linda G.
10/25/2025

You are encouraged to make an appointment, and directed to the most frustrating online scheduling process (over three hours trying to make an appointment on a system that frustrates at every turn...

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