DNA Test - Oak Park, IL

Set up DNA Test

Health Street provides DNA testing in Oak Park, Illinois at 3 conveniently located testing laboratories. Register now, or call us at (708) 419-1665 or schedule online. with any questions. Our paternity testing (including grandparent DNA tests, avuncular (aunt or uncle) testing, and postmortem DNA testing) determines if two or more people are related.

Schedule an appointment for a DNA test quickly and easily. The parties can come together or you can set up separate appointments. Grandparent DNA tests, avuncular (aunt or uncle) testing, and postmortem DNA testing are also available. Legal DNA tests are done at our testing centers. Peace of mind DNA tests can be done at home by cheek swab, hair, or fingernails.

Workforce Screening, Digitally Delivered

Star Rating
4.9 out of 5 stars (6489 reviews)

DNA Test - Oak Park, Illinois

Oak Park IL DNA Testing Locations

Types of DNA Tests at our Oak Park, Illinois clinics:

Paternity Testing can conclusively establish whether or not a man is the biological father of a child.

Relationship Testing for other close family relationships can be performed at our testing centers. Our DNA testing services can confirm or deny biological relationships between grandparents, grandchildren, siblings, half-siblings, aunts, uncles, nieces and nephews:

Grandparent DNA Test (if the father is not available for testing)
Sibling DNA Test (possible brothers, sisters, or half-siblings)
Avuncular DNA Test (aunt/uncle and niece/nephew)

Specimens we can test for DNA

The easiest and most reliable way to obtain a DNA sample for paternity testing is to swab the inner cheeks of the alleged father and child or children. These skin cells are known as buccal cells, and they rub off easily onto cotton swabs and remain in place for analysis by our laboratory.

Other specimen samples, such as hair follicles, fingernails, and garments that might contain someone's DNA, can also be tested. An Alternative Specimen DNA Test is done by ordering one of our testing kits online and shipping the specimens back to us.

Legal DNA Tests vs. "Peace of Mind" At-Home Tests

A Legal Paternity Test is a court admissible lab testing service performed at an AABB accredited laboratory. Accurate results for DNA paternity testing with 99.99% confidence or greater take about a week.

When deciding which type of DNA test is right for you, consider first what you might do with the results. A legal paternity DNA test will hold up in court for such matters as child support or to change the name on a birth certificate. This test must be performed using strict chain of custody procedures. Our Oak Park DNA testing technicians are trained to follow these guidelines so that the results will be legally admissible.

How to schedule a DNA Test in Oak Park IL

Scheduling a DNA test at one of our Oak Park clinics is simple and fast, and we often have appointments available in the same week. It's always helpful to schedule in advance to make sure you get the time you want. Please call our customer service team to help you book your appointment over the phone, or set up your appointment easily online.

We have state of the art testing labs and friendly clinics that perform the DNA sample collection in Oak Park, plus many more locations throughout Illinois and across the United States. During registration, we'll show you the nearest locations for DNA testing so you can choose the site that's most convenient. You'll also pick the times and days that you prefer.

Why Health Street

Over a Decade of Experience

Health Street has been performing DNA testing nationally since 2010.  We have helped thousands of people from Oak Park to communities all across the USA get DNA tests and paternity tests.

Dedication to Excellence

Our dedication to excellence includes our commitment to provide compassionate services and to helping people obtain the accurate DNA testing in Oak Park that they need. 

Oak Park, IL DNA Testing

What Are DNA Tests Used For?

DNA testing can be performed for various reasons. Often, it is to prove the child-father relationship to establish legal paternity, child support, or custody. It can also help modify the birth certificate with the biological father's name. Sometimes, DNA testing can be done when an individual wishes to establish paternity with a deceased person for inheritance or other legal purposes.

Paternity Testing

When there's uncertainty about a child's biological father, either from the mother or the alleged father, DNA testing can clear up any doubt. Paternity testing with Health Street is 99.99% accurate.

Child Custody and Support

Child custody and support cannot be established before legal paternity is determined. Often, parents establish paternity voluntarily, as there is no reason to doubt it. Other times, parents may need clarification by using DNA testing.

Changing a Birth Certificate

In instances where the legal father listed on a birth certificate is later found not to be the biological father, DNA testing can support the process of making necessary amendments. This process typically involves coordinating with the Illinois Department of Public Health and may require a court order of paternity.

How DNA Tests Are Analyzed

DNA samples are typically collected using cheek swabs or hair follicles and analyzed in our certified laboratories. The analysis involves comparing at least 21 genetic markers to determine if there is a biological relationship between the tested individuals.

How Long Does It Take to Receive DNA Test Results?

DNA test results with Health Street can take up to two weeks, depending on the type of specimen sample. Generally, if you did a cheek swab, you should get your results quicker–usually in up to one week, whereas hair follicle sample results can take up to two weeks.

Establishing Paternity in Illinois

There are three ways unmarried parents can establish paternity in Oak Park, IL:

  1. They can both sign and complete Voluntary Acknowledgment of Paternity, which must be done with witnesses present and then filed with the Department of Healthcare and Family Services
  2. HFS' Child Support Services can help them establish and enter administrative paternity order
  3. The court can establish paternity

Last updated 12/22/2023

Neighborhoods in Oak Park Served by our Clinics

Rehm Park
North Oak Park
Pleasant District
Harriston Street
Victoria Square
Ridgeland Oak Park Historic District
Frank Lloyd Wright Historic District
South Oak Park
Middle East Oak Park

Additional Services

Health Street offers a variety of other services, including:


Paternity information you should know. HFS Illinois Department of Healthcare and Family Services. (n.d.-a). https://hfs.illinois.gov/childsupport/formsbrochures/hfs3282.html
Family Services what parents voluntary acknowledgment of ... - illinois. (n.d.-aa). https://www2.illinois.gov/hfs/SiteCollectionDocuments/hfs3282.pdf
Not the father - can I take my name off of the birth certificate?. Fay, Farrow & Associates, P.C. (n.d.). https://www.faylawfirm.com/our-blog/not-the-father-can-i-take-my-name-off-of-the-birth-certificate