#1Rational Therapeutics, LLC
Serves this area from Signal Hill, CA (2 mi)
Clinical & Reference Laboratories in Long Beach, CA
The top-ranked clinical laboratories serving Long Beach, CA are Rational Therapeutics, LLC, Sterling Pathology National Laboratories and Affiliated Pathologists Medical Group Inc. We list 292 clinical laboratories serving Long Beach, CA. 30 of the providers shown match an active record from Centers for Medicare & Medicaid Services, checked on the date shown. Rankings follow our published methodology; sponsored placements never change rank.
Clinical & Reference Laboratories serving Long Beach, CA (Los Angeles County). 292 providers, 10 of the top 10 verified against federal or state records. Registry records checked on 2026-11-04.
Top 10 ranked clinical laboratories for Long Beach
#2Sterling Pathology National Laboratories
Serves this area from Seal Beach, CA (5 mi)#3Affiliated Pathologists Medical Group Inc
Serves this area from CA#4Biogene Diagnostics
Serves this area from Los Alamitos, CA (7 mi)#5New World Clinical Laboratory, Inc
Serves this area from Los Alamitos, CA (7 mi)#6Grace Laboratory
Serves this area from Carson, CA (7 mi)#7Priority Science Labs
Serves this area from Westminster, CA (8 mi)#8Bioanalysis Diagnostic Laboratories
Serves this area from Artesia, CA (8 mi)#9Consolidated Medical Bio-analysis Inc
Serves this area from Cypress, CA (8 mi)#10Altasciences Los Angeles
Serves this area from Cypress, CA (8 mi)
20 more providers serving this area
- Laboratory Corporation, Los Angeles, CA (9 mi)
- Omnia Diagnostic Laboratory, LLC, West Carson, CA (9 mi)
- Sterling Pathology National Laboratories, Westminster, CA (9 mi)
- USA Biosciences, LLC, Lomita, CA (9 mi)
- Caris Mpi, Inc, Buena Park, CA (9 mi)
- Igenomix USA Inc, Torrance, CA (10 mi)
- Diagnostic Laboratory Science Inc, Garden Grove, CA (10 mi)
- Open Healthcare US, Gardena, CA (10 mi)
- Neom Diagnostic Laboratories, Torrance, CA (10 mi)
- Weisenthal Cancer Group, Huntington Beach, CA (11 mi)
- Digestive Care Consultants, Torrance, CA (11 mi)
- Dxterity Diagnostics, Torrance, CA (11 mi)
- All South Bay Footcare Podiatry Group Inc, Torrance, CA (11 mi)
- Innovative Pathology Medical Group, Torrance, CA (11 mi)
- Spring Diagnostics, Torrance, CA (11 mi)
- Orange County Labs Inc, Huntington Beach, CA (12 mi)
- Vitae Diagnostics, Torrance, CA (12 mi)
- Ajeeth, Inc, Rancho Palos Verdes, CA (13 mi)
- Pathology Associates Laboratory, Anaheim, CA (13 mi)
- Lifequest Diagnostic, Inc, Anaheim, CA (13 mi)
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Frequently asked questions
How many clinical laboratories serve Long Beach?
We list 292 clinical laboratories serving Long Beach, CA: 0 based there and 292 serving it from nearby. 10 of the top 10 match an active federal or state record, checked on 2026-11-04.
Which clinical laboratories serve Long Beach?
The top-ranked clinical laboratories serving Long Beach, CA are Rational Therapeutics, LLC, Sterling Pathology National Laboratories, Affiliated Pathologists Medical Group Inc, Biogene Diagnostics and New World Clinical Laboratory, Inc. The full ranked list, with the official records each provider matched, is on this page.
Which clinical laboratories serving Long Beach are verified against official records?
10 of the top 10 match an active official record: Rational Therapeutics, LLC (Centers for Medicare & Medicaid Services), Sterling Pathology National Laboratories (Centers for Medicare & Medicaid Services), Affiliated Pathologists Medical Group Inc (Centers for Medicare & Medicaid Services), Biogene Diagnostics (Centers for Medicare & Medicaid Services) and New World Clinical Laboratory, Inc (Centers for Medicare & Medicaid Services), and 5 more on this page. Each badge links to the official record it matched.
How are these companies ranked?
By our published methodology: verified registrations, documented capabilities, years registered and responsiveness. Sponsored placements are shown separately and never affect rank.
What does "Verified" mean on this page?
"Verified" means we matched the provider to an active official record on the date shown; each badge links to that record. The absence of a badge only means we have not verified that item.
What does CLIA certification mean?
CLIA certificates are issued under federal law for laboratories testing human specimens. A certificate of compliance or accreditation covers moderate and high complexity testing; a certificate of waiver covers only simple waived tests.
"Verified" means we matched the provider to an active official record on the date shown. The absence of a badge only means we have not verified that item. How we rank and verify. Page updated .