Confidential results No doctor visit required Results in 1-3 days 4,500+ locations
Quest Diagnostics

Lab Testing at Quest Diagnostics - Downey Brookshire - Employer Drug Testing Not Offered

Quest Diagnostics Patient Service Center in Downey, CA 90241.

Order Lab Tests for Collection at This Location

Browse All Tests

Popular tests at this location:

Address

11525 Brookshire Ave Ste 401
Downey, CA 90241
Los Angeles County

Hours

Monday7:00 AM – 5:00 PM
Tuesday7:00 AM – 5:00 PM
Wednesday7:00 AM – 5:00 PM
Thursday7:00 AM – 5:00 PM
Friday7:00 AM – 5:00 PM
Saturday7:00 AM – 12:00 PM
SundayClosed

Nearby alternatives

More lab options around Downey

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.