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Quest Diagnostics Medical Laboratory

The Quest Diagnostics difference. Bringing together quality, speed, and technology to power advanced, affordable diagnostics for all. No trade-offs required.

Website: questdiagnostics.com

Phone: (206) 381-0557

Cross Streets: Near the intersection of Madison St and Minor Ave

Opening soon · 7 AM

  • Thu 7:00 AM - 4:00 PM

1101 Madison St Seattle, WA 98104 ·2274.54 mi

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Reviews

yelp
2.5 24 reviews
5 star
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11
Royal P. 06/17/26

Any place that can stick me on the first try on my left arm (which has been impossible for many phlebotomists, back when I was donating blood regularly) deserves an instant 5 stars. I usually...

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Nadia S. 04/14/26

Visited Quest Diagnostics in Madison Tower on the 12th Floor. I booked my appointment online - pretty easy and lots of time slots available. They do take walk-ins, but there's no front desk...

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Justin S. 11/21/25

Door locked at 15 minutes before closing. They don't want my money, or are just too busy.

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Britton L. 12/04/24

I've never had a problem at this location. It's run as a tight ship, I've never seen more than one person working at a time. I've always been in and out quickly and everyone is friendly!

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B T. 05/11/25

I was told I should get my results in 3-5 days and it's now been 3 WEEKS! both my doctor and I have tried to contact them with no answer and no reply. DO NOT GO HERE!

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