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Quest Diagnostics

Lab Testing at Quest Diagnostics - Simi Valley Sycamore

Quest Diagnostics Patient Service Center in Simi Valley, CA 93065.

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Address

2876 Sycamore Dr Ste 200
Simi Valley, CA 93065
Ventura County

Hours

Monday6:30 AM – 4:00 PM
Tuesday6:30 AM – 4:00 PM
Wednesday6:30 AM – 4:00 PM
Thursday6:30 AM – 4:00 PM
Friday6:30 AM – 4:00 PM
Saturday8:30 AM – 12:30 PM
SundayClosed

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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.