Quest Diagnostics

Lab Testing at Quest Diagnostics - Lafayette Mt Diablo Boulevard - Employer Drug Testing Not Offered

Quest Diagnostics Patient Service Center in Lafayette, CA 94549.

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Popular tests at this location:

TSH Lipid Panel CBC A1C Testosterone Vitamin D CMP

Address

3800 Mt Diablo Blvd Suite 104
Lafayette, CA 94549
Contra Costa County

925-283-4872

Hours

Monday	7:00 AM – 11:30, 12:30
Tuesday	7:00 AM – 11:30, 12:30
Wednesday	7:00 AM – 11:30, 12:30
Thursday	7:00 AM – 11:30, 12:30
Friday	7:00 AM – 11:30, 12:30
Saturday	Closed
Sunday	Closed

Nearby alternatives

LabCorp Lafayette
3466 Mt Diablo Blvd Ste C102, Lafayette, CA 94549
1.2 mi
LabCorp Orinda
140 Brookwood Rd Ste 102, Orinda, CA 94563
2.7 mi
LabCorp Walnut Creek
1914 Tice Valley Blvd, Walnut Creek, CA 94595
3.4 mi
LabCorp Walnut Creek
2900 N Main St Ste, Walnut Creek, CA 94597
4.7 mi
LabCorp Walnut Creek
1450 Treat Blvd, Walnut Creek, CA 94597
5.2 mi

About this location

Quest Diagnostics Patient Service Center. Quest Diagnostics operates one of the largest networks of clinical laboratories in the United States, offering a wide range of diagnostic tests for patients, physicians, and employers.

Listing last updated 2026-04-25.