#1Acupath Laboratories Inc
Based in Plainview, NY
Clinical & Reference Laboratories in Nassau County, NY
The top-ranked clinical laboratories serving Nassau County, NY are Acupath Laboratories Inc, Acutis Diagnostics, Inc and Bayside Laboratories Inc. We list 81 clinical laboratories serving Nassau County, NY. 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 Nassau County, NY. 81 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 Nassau County
#2Acutis Diagnostics, Inc
Based in Hicksville, NY#3Bayside Laboratories Inc
Based in Uniondale, NY#4Cross Island Diagnostic And Research Laboratory
Based in Levittown, NY#5Cshl Clinical Laboratory
Based in Woodbury, NY#6Dntp Laboratory
Based in Levittown, NY#7Gastrocare Li
Based in Valley Stream, NY#8Guardian Clinical Laboratories LLC
Based in Oceanside, NY#9Jordan Steinberg
Based in Salisbury, NY#10Laboratory Corporation Of America Holdings
Based in Plainview, NY
20 more providers serving this area
- Laboratory Of Dermatopathology Adx LLC, Woodbury, NY
- Long Island Medical Laboratory, Carle Place, NY
- New Island Medical Practice PC, Upper Brookville, NY
- North Shore Medical Labs, Williston Park, NY
- Northwell Health Laboratories, Lake Success, NY
- Northwell Health Laboratories-10 Nevada Drive, Lake Success, NY
- Northwell Health Laboratories - Pathology, North New Hyde Park, NY
- Precise Diagnostics Inc, East Norwich, NY
- Queens Medical Laboratory, North New Hyde Park, NY
- Sunrise Medical Laboratories, Hicksville, NY
- Sunstone Pathology Services PC, Franklin Square, NY
- Tovana Health, Great Neck, NY
- Cheema Akhtar Pathology, PC, New York, NY (7 mi)
- Northwell Health Laboratories - Little Neck Pkwy, New York, NY (7 mi)
- Atlas Gastro Pathology PLLC, New York, NY (9 mi)
- Quest Diagnostics, Melville, NY (9 mi)
- Novinopath Diagnostics, LLC, New York, NY (10 mi)
- Sophora Diagnostic Laboratory, New York, NY (11 mi)
- Anderson Labs, New York, NY (11 mi)
- L Diagnostic Laboratories, New York, NY (11 mi)
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Frequently asked questions
How many clinical laboratories serve Nassau County?
We list 81 clinical laboratories serving Nassau County, NY: 22 based there and 59 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 Nassau County?
The top-ranked clinical laboratories serving Nassau County, NY are Acupath Laboratories Inc, Acutis Diagnostics, Inc, Bayside Laboratories Inc, Cross Island Diagnostic And Research Laboratory and Cshl Clinical Laboratory. The full ranked list, with the official records each provider matched, is on this page.
Which clinical laboratories serving Nassau County are verified against official records?
10 of the top 10 match an active official record: Acupath Laboratories Inc (Centers for Medicare & Medicaid Services), Acutis Diagnostics, Inc (Centers for Medicare & Medicaid Services), Bayside Laboratories Inc (Centers for Medicare & Medicaid Services), Cross Island Diagnostic And Research Laboratory (Centers for Medicare & Medicaid Services) and Cshl Clinical Laboratory (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 .
Cities in Nassau County
Communities served
Garden City, Merrick, Massapequa, Mineola, Lynbrook, North Bellmore, East Massapequa, West Hempstead, Syosset, Woodmere, Wantagh, North Valley Stream, Roosevelt, North Massapequa, Massapequa Park, Port Washington, Bethpage, Bellmore, Floral Park, Westbury, North New Hyde Park, Seaford, Jericho, South Farmingdale, New Cassel, Salisbury, North Merrick, North Wantagh, Inwood, Great Neck, New Hyde Park, East Rockaway, Plainedge, Woodbury, Farmingdale, Malverne, Manhasset, Garden City Park, Great Neck Plaza, Williston Park, Cedarhurst, East Hills, Hewlett, Oyster Bay, Manorhaven, Lawrence, Roslyn Heights, Bayville, Old Bethpage, South Valley Stream, Lakeview, Kings Point, North Hills, Albertson, Searingtown, Sea Cliff, Island Park, Carle Place, Old Westbury, Glen Head