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Quest Diagnostics

3.8

About this business

Location details

3800 Mount Diablo Blvd UNIT 104, Lafayette, CA, 94549, United States

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WeekdayScheduleStatus
Mon7:30 a.m. to 12:00 p.m. 1:00 p.m. to 3:00 p.m.
Tue7:30 a.m. to 12:00 p.m. 1:00 p.m. to 3:00 p.m.
Wed7:30 a.m. to 12:00 p.m. 1:00 p.m. to 3:00 p.m.
Thu7:30 a.m. to 12:00 p.m. 1:00 p.m. to 3:00 p.m.
Fri7:30 a.m. to 12:00 p.m. 1:00 p.m. to 3:00 p.m.
SatClosed
SunClosed
3.846 reviews
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Bekki Van Voorhis-Gilbert's profile image
Bekki Van Voorhis-Gilbert 
2 weeks ago

Peng the phlebotomist, the ONLY person who works in this location is very efficient and personable. However, this Mt Diablo lab is woefully understaffed and has been for years. Even having a second person just during morning hours would be a huge improvement. If you don't have an appointment, be prepared for a very long wait. Again Peng is wonderful, but there's simply too much for one person to do. 

Lucy Burgoyne's profile image
Lucy Burgoyne 
3 weeks ago

Peng was fantastic! Very efficient and kind. That said I’m only rating two stars because the location needs to be better staffed. Appointments are typically only available weeks in advance. When I urgently needed bloodwork done last minute, I went as a walk-in, and it took about an hour and a half to get drawn despite getting to the office exactly at opening 7:30AM. There isn’t anyone at the front desk to help with paperwork and insurance. Peng did it all. 

Michael Yang's profile image
Michael Yang 
2 months ago

Very professional, efficient, and friendly help from Peng. Would recommend this location. 

Jake Russell's profile image
Jake Russell 
6 months ago

They don’t have anyone working at the front. You have to use a screen to schedule an appointment. Correct me if I’m wrong but I think you have to pay for an appointment FIRST before knowing how much insurance covers. Difficult to make an appointment 

Andrew Taylor's profile image
Andrew Taylor 
7 months ago

Very fast and easy experience. The place was very clean and the employee was amazing! Thank you Peng B! 

Frequently asked questions about Quest Diagnostics

How is Quest Diagnostics rated?

Quest Diagnostics has a 3.8 star rating with 46 reviews. 

When is Quest Diagnostics open?

Quest Diagnostics is closed now. It will open at 7:30 a.m. 

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