Clinical Research Sites in Nassau County, NY

The top-ranked clinical research sites serving Nassau County, NY are AccuMed, AccuMed Research Associates and ACGC Research, NYU Ambulatory Care Garden City. We list 431 clinical research sites serving Nassau County, NY. 30 of the providers shown match an active record from ClinicalTrials.gov, checked on the date shown. Rankings follow our published methodology; sponsored placements never change rank.

Clinical Research Sites serving Nassau County, NY. 431 providers, 10 of the top 10 verified against federal or state records. Registry records checked on 2026-11-04.

Top 10 ranked clinical research sites for Nassau County

20 more providers serving this area

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Frequently asked questions

How many clinical research sites serve Nassau County?

We list 431 clinical research sites serving Nassau County, NY: 140 based there and 291 serving it from nearby. 10 of the top 10 match an active federal or state record, checked on 2026-11-04.

Which clinical research sites serve Nassau County?

The top-ranked clinical research sites serving Nassau County, NY are AccuMed, AccuMed Research Associates, ACGC Research, NYU Ambulatory Care Garden City, Advanced Radiation Centers of New York (Integrated Medical Professionals) and Alkeus Site. The full ranked list, with the official records each provider matched, is on this page.

Which clinical research sites serving Nassau County are verified against official records?

10 of the top 10 match an active official record: AccuMed (ClinicalTrials.gov), AccuMed Research Associates (ClinicalTrials.gov), ACGC Research, NYU Ambulatory Care Garden City (ClinicalTrials.gov), Advanced Radiation Centers of New York (Integrated Medical Professionals) (ClinicalTrials.gov) and Alkeus Site (ClinicalTrials.gov), 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.

How do sponsors judge a research site?

Common checks are enrollment history in the indication, experienced coordinators, IRB arrangements, start-up time and data quality. ClinicalTrials.gov shows which studies a site has been listed on.

"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

Freeport, Hicksville, Valley Stream, East Meadow, Elmont, Long Beach, Baldwin, Oceanside, Uniondale, Franklin Square, Glen Cove, Plainview, Rockville Centre, 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

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