#1Clinical Diagnostic Laboratories, LLC
Serves this area from Ashburn, VA (6 mi)
Clinical & Reference Laboratories in Leesburg, VA
The top-ranked clinical laboratories serving Leesburg, VA are Clinical Diagnostic Laboratories, LLC, Labcorp Ashburn Psc and Athari Biosciences Inc. We list 63 clinical laboratories serving Leesburg, VA. 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 Leesburg, VA (Loudoun County). 63 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 Leesburg
#2Labcorp Ashburn Psc
Serves this area from Ashburn, VA (7 mi)#3Athari Biosciences Inc
Serves this area from Dulles Town Center, VA (9 mi)#4Sunrise Medical Laboratories
Serves this area from Chantilly, VA (14 mi)#5Laboratory Corporation Of America
Serves this area from Chantilly, VA (16 mi)#6Microgen Health, Inc DBA Testgo
Serves this area from Chantilly, VA (16 mi)#7Virginia Reproductive Labs
Serves this area from Reston, VA (16 mi)#8Cosmosid Ngs Laboratory Services, LLC
Serves this area from Germantown, MD (17 mi)#9Quest Diagnostics Nichols Institute, Inc
Serves this area from Chantilly, VA (17 mi)#10Personalized Medicine Care Diagnostic
Serves this area from Germantown, MD (17 mi)
20 more providers serving this area
- Cv Path Institute Inc, Gaithersburg, MD (18 mi)
- Smithers Pharmaceutical Development Services, Gaithersburg, MD (18 mi)
- Cleardx Clinical Laboratory, Gaithersburg, MD (18 mi)
- Oral Pathology Services, Gaithersburg, MD (18 mi)
- B&b Bio LLC, Gaithersburg, MD (18 mi)
- Mira Genetix, Greenbriar, VA (18 mi)
- Clongen Laboratories, Gaithersburg, MD (19 mi)
- Genedx, LLC, Gaithersburg, MD (19 mi)
- Fairfax Health Center, Fair Lakes, VA (19 mi)
- Mid Atlantic Pathology Services, Mclean Satellite, McLean, VA (19 mi)
- Sam's Medical Laboratory LLC, Montgomery Village, MD (19 mi)
- Trilliumbio, MD
- Shady Grove Fertility-fair Oaks, Fair Oaks, VA (19 mi)
- Arthritis & Rheumatism Associate PC, Rockville, MD (20 mi)
- Genesys Biolabs, MD
- Minomic Inc, MD
- Shady Grove Andrology Center LLC, MD
- Cirrus Dx Inc, Rockville, MD (20 mi)
- Oncoomicsdx, Rockville, MD (20 mi)
- Silbiotech, Inc, Ballenger Creek, MD (20 mi)
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Frequently asked questions
How many clinical laboratories serve Leesburg?
We list 63 clinical laboratories serving Leesburg, VA: 0 based there and 63 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 Leesburg?
The top-ranked clinical laboratories serving Leesburg, VA are Clinical Diagnostic Laboratories, LLC, Labcorp Ashburn Psc, Athari Biosciences Inc, Sunrise Medical Laboratories and Laboratory Corporation Of America. The full ranked list, with the official records each provider matched, is on this page.
Which clinical laboratories serving Leesburg are verified against official records?
10 of the top 10 match an active official record: Clinical Diagnostic Laboratories, LLC (Centers for Medicare & Medicaid Services), Labcorp Ashburn Psc (Centers for Medicare & Medicaid Services), Athari Biosciences Inc (Centers for Medicare & Medicaid Services), Sunrise Medical Laboratories (Centers for Medicare & Medicaid Services) and Laboratory Corporation Of America (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 .