Quest Diagnostics

Lab Testing at Staff - Worthy

Quest partner location in Porterville, CA 93257.

Partner Location

This location is part of Quest's partner network. Services and availability may differ from a standard Quest Patient Service Center. Please call 559-500-1124 before visiting to confirm they accept your lab order.

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Note: tests available at this location depend on its services. Confirm by calling before visiting.

Address

323 N D St
Porterville, CA 93257
Tulare County

559-500-1124

Hours

Monday	8:00 AM – 12:00, 13:00
Tuesday	8:00 AM – 12:00, 13:00
Wednesday	8:00 AM – 12:00, 13:00
Thursday	8:00 AM – 12:00, 13:00
Friday	8:00 AM – 12:00, 13:00
Saturday	Closed
Sunday	Closed

Nearby alternatives

Quest Diagnostics - Porterville Pearson Dr
365 Pearson Dr Ste 8, Porterville, CA 93257
0.5 mi
LabCorp Porterville
368 W Olive Ave, Porterville, CA 93257
0.6 mi
Quest Diagnostics - Tulare North Blackstone
919 N Blackstone St, Tulare, CA 93274
20.3 mi
LabCorp Tulare
1217 N Cherry St, Tulare, CA 93274
20.6 mi
Quest Diagnostics - Visalia Court - Employer Drug Testing Not Offered
1827 S Court St Ste D, Visalia, CA 93277
22.7 mi

About this location

Quest partner location. 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.