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Welcome to Long Island DNA Testing of Nassau

Paternity & Relationship DNA Tests in Long Island

Our Nassau DNA Testing clinic is located in Lake Success, Long Island - 15 Minutes away from Hempstead. Our staff at our Nassau DNA testing center is always looking forward to impressing you with their outstanding services. Call now to make an appointment!

Nassau County: Welcome


Our tests are not only the most accurate, but our customers equally love our extremely competent staff and exceptional services throughout Suffolk County. It is because we deliver what we promise! Our testing services are economical as well as reliable.

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Accredited DNA Testing Long Island


Admissible DNA Testing Long Island


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Nassau County: Accepted Insurance
Paternity DNA Test Nassau Long Island

Paternity Testing

At Long Island DNA Testing, our competent staff has been providing exceptional paternity testing services in Nassau County for five years. We take pride in our fast results and customer care.

Nassau County: About Us


The biological relationship between the child and other relatives, both close and distant, can be confirmed by performing Relationship DNA testing. Since our founding, Long Island Testing in Nassau has performed high-quality relationship DNA tests for thousands of people with an unmatchable accuracy of 99.9%.

Immigration DNA Test Nassau Long Island


Whether you are sponsoring a family member or are immigrating to the USA yourself, Long Island DNA Testing, has extensive experience in DNA testing for immigration purposes and are, therefore, well aware of the legal requisites for such testing. Our partner lab is AABB accredited and helps make the process even more seamless for you!

Siblingship DNA Test Nassau Long Island


Performed to develop a biological relationship between siblings, be it half-siblings or full siblings, our Siblingship DNA test is highly accurate. We are proud to have reunited several families over the last five years.

Grandparent DNA Test Nassau Long Island


This test can be performed even in the absence of the father and can also be performed as an alternative to a paternity test in case the alleged father is unavailable. Long Island DNA Testing is proud to be the trendsetter in DNA testing in Long Island.

Nassau County: Accepted Insurance

DNA Testing in Nassau

Long Island DNA Testing Services all of Nassau county. Our mobile collectors can come to your residence, or you can schedule your test at our collection site. Our office is by appointment only. 

1979 Marcus Ave

Suite 210, Office 4

Lake Success, NY 11042

Due to COVID-19, we DO NOT accept walk-in's. To schedule an appointment, please give us a call and we can book your appointment same day or next day.

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DNA Testing in Long Island, NY

Relationship DNA Tests in Nassau and Suffolk County

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Here For You

Our Suffolk DNA Testing clinic is located in Melville, in the town of Huntington. Our staff at Suffolk centre is always looking forward to impressing you with their outstanding services. Call now to make an appointment!

Nassau County: Our Services
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