Quest Diagnostics

Lab Testing at Quest Diagnostics - Walnut Creek Oak Grove Rd

Quest Diagnostics Patient Service Center in Walnut Creek, CA 94598.

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Popular tests at this location:

TSH Lipid Panel CBC A1C Testosterone Vitamin D CMP

Address

2250 Oak Grove Rd
Walnut Creek, CA 94598
Contra Costa County

925-930-6897

Hours

Monday	7:30 AM – 4:30 PM
Tuesday	7:30 AM – 4:30 PM
Wednesday	7:30 AM – 4:30 PM
Thursday	7:30 AM – 4:30 PM
Friday	7:30 AM – 4:30 PM
Saturday	8:00 AM – 12:00 PM
Sunday	Closed

Nearby alternatives

LabCorp Walnut Creek
177 La Casa Via Suite 150, Walnut Creek, CA 94598
2 mi
Quest Diagnostics - Walnut Creek La Cas Via
108 La Casa Via Ste 105, Walnut Creek, CA 94598
2.1 mi
LabCorp Walnut Creek
1450 Treat Blvd, Walnut Creek, CA 94597
2.1 mi
LabCorp Concord
1990 Monument Blvd, Concord, CA 94520
2.2 mi
LabCorp Walnut Creek
2900 N Main St Ste, Walnut Creek, CA 94597
2.6 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.