Quest Diagnostics

Lab Testing at Quest Diagnostics - Rancho Santa Margarita El Paseo - Employer Drug Testing Not Offered

Quest Diagnostics Patient Service Center in Rancho Santa Margarita, CA 92688.

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Popular tests at this location:

TSH Lipid Panel CBC A1C Testosterone Vitamin D CMP

Address

22312 El Paseo Ste H
Rancho Santa Margarita, CA 92688
Orange County

949-236-0269

Hours

Monday	6:00 AM – 3:30 PM
Tuesday	6:00 AM – 3:30 PM
Wednesday	6:00 AM – 3:30 PM
Thursday	6:00 AM – 3:30 PM
Friday	6:00 AM – 3:30 PM
Saturday	Closed
Sunday	Closed

Nearby alternatives

LabCorp Rancho Santa Margarita
22032 El Paseo Ste 160, Rancho Santa Margarita, CA 92688
0.3 mi
Quest Diagnostics - Foothill Ranch - Employer Drug Testing Not Offered
26672 Portola Pkwy, Foothill Ranch, CA 92610
5.2 mi
LabCorp Foothill Ranch
26700 Towne Centre Dr Suite 110, Foothill Ranch, CA 92610
5.5 mi
Afc Urgent Care - Ladera Ranch
27522 Antonio Pkwy Ste P3, Ladera Ranch, CA 92694
5.6 mi
Performance Health Medgrp
25431 Cabot Rd Ste 118, Laguna Hills, CA 92653
5.8 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.