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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: (951) 415-4195

Cross Streets: Near the intersection of S Main St and E Ontario Ave/W Ontario Ave

Closed now

  • Tue 6:30 AM - 3:30 PM

2250 S Main St Corona, CA 92882 ·2153.93 mi

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Reviews

yelp
2.5 69 reviews
5 star
21 4 star
3 3 star
2 2 star
2 1 star
41
Liza H. 09/04/26

Susie was so amazing. She was very kind, answered all my questions, and I felt no discomfort in my arm at all when she took my blood sample. Very professional! Make an appointment online, if you...

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Joe U. 08/07/26

I have been at Quest for approximately four hours on the standby list. I completely understand that patients with appointments take priority and that being on standby means there is no guaranteed...

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Jamie B. 10/19/26

I Waited 20 plus minutes after my appointment time to be called in for a simple sample drop off. I asked why they were seeing non-appointment people on the wait list before they called my name and...

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Dhruv 01/18/26

The staff is friendly and made my experience pain free she gave excellent service made sure I did not feel needle pain. Bloodwork was done without knowing it was done.

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Grace H. 08/30/25

If you want to get stabbed a bunch of time by people who don't know what the bell they are doing then come to this location! I get blood work done regularly I've NEVER. Had a issue with someone...

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