DNA Testing Services | Chicago & Chicagoland Area

Paternity DNA Testing Near Me – Legal, Informational, Relationship & Prenatal Options

Accurate, confidential DNA testing with upfront pricing and fast results. Court-admissible and peace-of-mind options available.

No matter your situation, we offer testing services that fit your needs. Contact us for a free consultation.

Types of DNA Tests We Offer

Paternity DNA Testing

Paternity testing is done to determine whether a man is the biological father of a child.

Peace-of-mind testing

When you have doubts or want to confirm parentage—discreet, confidential testing with no ID required.

Legal testing

Court-admissible chain-of-custody testing is used for legal matters such as birth certificates, custody, and child support.

NIPP Prenatal Paternity Testing

This is an accurate, non-invasive test that can be performed as early as 8 weeks of pregnancy, and is completely safe for mother and baby.

Testing includes a blood draw from the mother and a cheek swab from the alleged father.

Results typically available within 5-7 business days.

Relationship DNA Testing

This test is used to determine sibling, grandparent, and avuncular (aunt or uncle) relationships. It is also used when the father is unavailable for testing.

Siblingship DNA Test

We can test for full or half-siblingship (whether you share 1 or 2 parents).

Avuncular DNA Test

When a parent isn't available, we can test aunts, uncles, nieces or nephews.

Grandparentage DNA Test

If the father is not available, we can test against grandparents (dad's parents).

At-Home DNA Testing

This testing provides a convenient and confidential solution for when you are looking for peace-of-mind answers in the comfort of your own home.

Please note, at-home DNA testing IS NOT court-admissible. It is strictly for peace-of-mind.

Same 99.99% accurate results as legal testing—done at home. Ideal for unpredictable visits or when you need discretion.

We can ship the kit to you or you can pick it up from our Forest Park, IL office.

We’ll guide you through collecting and packaging your sample. Then simply ship it using the provided prepaid FedEx label—easy and hassle-free

Postmortem DNA Testing

This testing allows DNA to be collected from a deceased individual before burial.

Time is of the essence. We understand this can be a difficult situation—please call us to discuss your circumstances and explore your options.

Immigration DNA Testing

This testing may be required to establish biological relationships for immigration purposes, such as family reunification, visa applications, or citizenship claims.

We do not perform immigration testing. Instead, we refer you to an AABB-accredited lab for testing.

Additional Services

Peekaboo Early Gender DNA Test

Private and accurate early gender reveal test results shared by parents celebrating their baby’s upcoming arrival.

Cant wait to find out its a boy or girl? You don't have to wait! As early as 6 Weeks into pregnancy, you can find out the baby's gender with over 99% accuracy. Result in one business day!

Pregnancy Test — Quantitative hCG

In-office quantitative hCG pregnancy test measuring exact pregnancy hormone levels for early detection and gestational tracking.

This blood test can estimate gestational age by measuring the pregnancy hormone hCG as early as 10 days after conception. For precise results—beyond just a positive or negative at-home test—this is the test for you.”

Why Choose DOTDOC For Your DNA Testing Needs?

Certified & Accredited Labs

All DNA tests are processed by AABB-accredited laboratories, ensuring highly accurate and reliable results.

Fast Turnaround

Most DNA test results available in as little as 2–3 business days. Expedited options also available.

100% Confidential

Your testing process and results are handled with complete privacy and discretion.

Convenient Location & Hours

Located right off I-290, less than 10 miles from Chicago, with easy access and ample parking. Available evenings and weekends.

Upfront Pricing

Know the full cost at the time of service—no surprise fees and no pre-booking charges.

Trusted & Reliable

We’ve performed hundreds of tests and can guide you through any testing situation with confidence and care.

How The DNA Testing Process Works

Step 1 - Consult

Call us with questions; we’ll help you choose the right test.

Step 2 - Book

Schedule online or by phone; same-day service available.

Step 3 - Paperwork

Complete consent forms and show ID. This is how secure chain of custody.

Step 4 - Collection

Most tests use a quick, painless cheek swab. NIPP and early gender reveal tests require a blood draw. Alternate sample types may be accepted—call us to confirm.

Step 5 - Results

Results are available within 2–3 business days. Choose how you receive them: email, mail, or in-person pickup.

FAQ / Things to Know

Is Testing Legitimate And Can I Trust The Results?

Absolutely. We utilize AABB-accredited labs for our testing. These are reputable facilities that exclusively do this kind of testing and adhere to rigorous standards. As a company, we also prioritize ethical conduct and uphold honesty in all our dealings

  • Legal testing follows strict chain-of-custody procedures and documentation to ensure the results are legally admissible in court. For example, all donors must have a photo-ID or be photographed in-office, and this must be included with their samples.
  • Peace-of-mind testing is typically done for personal knowledge or reassurance purposes and the documentation is less rigorous. This type of testing can be performed at home.
  • Results for standard paternity or relationship tests are available in under a week, most commonly within 2-3 business days of collection.
  • If there are any non-standard samples, results can take a few days longer.
  • Results for prenatal testing can take 5-7 business days. 
  • Immigration test results can take 1-3 weeks or longer. A lot depends on the specific Embassy.
  • Peace-of-mind test results are sent via e-mail. This is collected at the time of testing. We also provide a courtesy call to let you know results have been sent.
  • Legal test results are first delivered via e-mail. This is collected at the time of testing. We also provide a courtesy call to let you know results have been sent. The notarized results are received a few days later. You can choose to pick these up from our office or have them mailed to an address of your choosing.
  • Prenatal test results are delivered by phone by the lab conducting the test. You then have a choice of receiving a paper copy for your records.
  • Gender Reveal results are sent to a designated recipient. This ensures the surprise is not spoiled if you are planning a gender reveal party. 
  • Pregnancy test results are provided through a secure online portal to view or print. 
  • There’s no minimum age requirement for testing children. We’ve tested infants as young as a couple of days old, and they’re usually unaffected by the cheek swab. Your decision to bring the baby out in public for testing depends on your comfort level.
  • For prenatal testing, the woman needs to be at least 8 weeks pregnant for best results. At this point, there is enough fetal DNA in her blood for the lab to work with.
  • Yes! We can coordinate testing even if the participants are in a different state. With partner sites nationwide, we make the process easy and convenient—just a little scheduling coordination is needed.
  • Prices vary based on test type, number of people tested, and requested speed of results. For reference:
  • Legal paternity testing is in the $350/400 range; informational paternity testing is in the $250/300 range; NIPP testing is around $1500/1600.  
  • For exact pricing, give us a call to discuss your specific needs. 

Client Feedback

Awesome Service

Awesome service, was able to schedule an appointment over the phone that fit into my schedule perfectly, was given an answer to every question I had, highly recommend stopping by here if you’re in of a DOT physical”

Jose Hernandez
Pleasant and Smooth

“Had a pleasant and smooth appointment here. Had to come out here on short notice for my day off work. Had an appointment 2 hrs from when I originally called. Thanks 👍

Luis Guzman
Extremely nice

“Dr. Jenn was extremely nice and went above and beyond to help me figure out everything I needed for my drug and physical exams. I was a walk-in and was attended to right away. The whole testing process was fast and easy. The office was clean and very well organized. Overall, it was a very good experience.”

Joel Huerta

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