Laboratory Locations
UCI Health laboratory locations will be closed in observance of the following holidays:
| New Year Holiday: January 1, 2026 | Independence Day Holiday: July 3–4, 2026 |
| Martin Luther King, Jr. Day: January 19, 2026 | Labor Day: September 7, 2026 |
| President’s Day: February 16, 2026 | Veterans Day: November 11, 2026 |
| Memorial Day: May 25, 2026 | Thanksgiving Holiday: November 26–28, 2026 |
| Juneteenth: June 19, 2026 | Winter Holiday: December 24–26, 2026 |
We are contracted with major PPO insurance plans, Medicare and Medi-Cal. Please check with your insurance before receiving laboratory services.
UCI Health laboratory services can be found at convenient locations throughout Orange County.
If you can't find what you're looking for, please give us a call at 888-UCI-LABS (888-824-5227). We may be able to help you find a sooner appointment. UCI Health also accepts walk-in patients for lab.
Orange
101 The City Drive South Building 29, Pavilion 3 Orange, CA 92868Phone: 714-456-6779
Fax: 714-456-6405
Hours: Monday-Friday, 6:30 a.m. – 5 p.m.; Saturday, 7 a.m. – noon
Park in the parking structure on Dawn Way.
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This location now offers online appointment scheduling:
Schedule an appointment in Orange
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On My Way to OrangeCosta Mesa
UCI Health — Costa Mesa
1640 Newport Blvd., Suite 100
Costa Mesa, CA 92627
Phone: 949-398-1440
Fax: 949-386-5081
Hours: Monday-Friday, 7:30 a.m. – 4 p.m.
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This location now offers online appointment scheduling:
Schedule an appointment in Costa Mesa
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On My Way to Costa MesaIrvine
Joe C. Wen & Family Center for Advanced Care
19200 Jamboree Road
Irvine, CA 92612
Phone: 657-579-4170
Fax: 866-250-9012
Hours: Monday-Friday, 7:30 a.m. – 5 p.m.
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This location now offers online appointment scheduling:
Schedule an appointment in the Wen Center for Advanced Care
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On My Way to the Wen Center for Advanced CareChao Family Comprehensive Cancer Center & Ambulatory Care building – Irvine
19208 Jamboree Road, Suite 2300
Irvine, CA 92612
Phone: 657-579-3850
Fax: 800-248-8959
Hours: Monday - Friday, 7:30 a.m. – 4 p.m.
This location now offers online appointment scheduling:
Schedule an appointment in the Chao Family Comprehensive Cancer Center
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On My Way to the Chao Family Comprehensive Cancer CenterUCI Health Susan Samueli Integrative Health Institute
856 Health Sciences Road
Irvine, CA 92617
Phone: 949-824-7000
Fax: 949-824-7717
Hours: Monday-Friday, 8 a.m. – 4 p.m.
Closed for lunch noon – 1 p.m.
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This location now offers online appointment scheduling:
Schedule an appointment in the Samueli Integrative Health Institute
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On My Way to the Samueli Integrative Health InstituteLaguna Hills
23961 Calle de la Magdalena, Suite 200
Laguna Hills, CA 92653
Phone: 949-238-4100
Fax: 949-609-0727
Hours: Monday-Friday, 7:30 a.m. – 4 p.m.
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This location now offers online appointment scheduling:
Schedule an appointment in Laguna Hills
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On My Way to Laguna HillsSanta Ana
800 N. Main St.
Santa Ana, CA 92701
Phone: 657-282-6355
Fax: 714-973-2825
Hours: Monday-Friday, 8 a.m. – noon
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This location now offers online appointment scheduling:
Schedule an appointment in Santa Ana
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On My Way to Santa AnaTustin
1451 Irvine Blvd., Bldg. 300
Tustin, CA 92780
Phone: 714-838-8878
Fax: 714-838-1643
Hours: Monday-Friday, 7:30 a.m. – 4 p.m.
Closed for lunch from 12:30 – 1:30 p.m.
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This location now offers online appointment scheduling:
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On My Way to TustinYorba Linda
18637 Yorba Linda Blvd., Suite 1007
Yorba Linda, CA 92886
Phone: 714-790-8600
Fax: 714-701-9115
Hours: Monday–Friday, 7:30 a.m. – 4 p.m.
Map & directions ›
This location now offers online appointment scheduling:
Schedule an appointment in Yorba Linda
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On My Way to Yorba Linda