Quest Diagnostics

Lab Testing at Quest Diagnostics - Temecula Jefferson - Employer Drug Testing Not Offered

Quest Diagnostics Patient Service Center in Temecula, CA 92590.

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Popular tests at this location:

TSH Lipid Panel CBC A1C Testosterone Vitamin D CMP

Address

27699 Jefferson Ave Ste 109
Temecula, CA 92590
Riverside County

951-225-2474

Hours

Monday	6:00 AM – 4:00 PM
Tuesday	6:00 AM – 4:00 PM
Wednesday	6:00 AM – 4:00 PM
Thursday	6:00 AM – 4:00 PM
Friday	6:00 AM – 4:00 PM
Saturday	8:00 AM – 12:00 PM
Sunday	Closed

Nearby alternatives

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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.