DNA Test - Modesto, CA

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Health Street provides DNA tests and legal paternity testing in Modesto, California at 5 testing laboratory. Call (209) 554-6858 or schedule online. We offer legal paternity tests, sibling studies, grandparent DNA tests, avuncular (aunt or uncle) testing, and postmortem DNA testing to determine if people are biologically related.

Set up DNA testing appointments online. Test results can be used in court for child support or to change a birth certificate; it can also be used for simple peace of mind. Appointments can be scheduled together or separately. Legal DNA tests are done by cheek swab at our testing centers. We can also extract DNA samples from hair follicles, fingernails, and other specimens.

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A: device was friendly and got what I needed fast. B: Service was used online.C: services used was DNA testing for my child with presumed father.
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It was easy & fast on the results I was 100 satisfy I defiantly recommend this place if you want a DNA done or anything else
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DNA Testing Modesto, California

Modesto CA DNA Testing Locations

Types of DNA Tests at our Modesto CA 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 Modesto DNA testing technicians are trained to follow these guidelines so that the results will be legally admissible.

How to schedule a DNA Test in Modesto CA

Scheduling a DNA test at one of our Modesto 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 Modesto, plus many more locations throughout California 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

A Decade Plus of Experience

Health Street has provided DNA tests since 2010. The first DNA test we performed in Modesto, CA was in 2018.Since then, we have done 64 DNA tests at our Modesto facilities.

Commitment to Community

Health Street and its staff are dedicated to the people of Modesto, California, and to serving their DNA testing needs. We are sensitive to issues surrounding these important, family defining laboratory tests. 

Modesto, California - DNA Testing

Modesto Woman Meets Siblings for the First Time

Modesto resident Erica Hunt had always wondered who her father was. She eventually took a DNA test and just two months later, was reunited with siblings she never knew she had. While she sadly learned that her birth father, a man named Bailey Center, had passed away in 2015, her search led her to a woman named Michelle Center Ortiz, who turned out to be her half-sister.

Ortiz was initially skeptical, but after doing some research and noting the family resemblance, she quickly accepted that she had found a new family connection. Ortiz then arranged a Zoom introduction to her brothers Bailey II, Keith, Chris, and Brian. Later, the four secretly arranged to surprise Hunt with an in-person meeting, which was met with joyful tears. The newly united family now plans to focus on getting to know each other and making up for lost time.

Reunited Siblings Unknowingly Crossed Paths in Modesto

For years, Barbara Austin had dreamed of taking a DNA test to learn more about who she really was. Raised by her aunt, she was never close with her mother and didn't know much about her father. The test results led her to cousins and extended family, but she was disappointed to learn that her father had passed away in 2014.

However, there was a silver lining. She eventually connected with a half-sister named Monique Navarette. Austin and Navarette were shocked to learn that they had crossed paths years prior in Modesto, attending the same schools without ever knowing each other. Austin says she feels a sense of relief now that "this chapter is finally solved."

Establishing Paternity in Modesto

In the state of California, if a child is born to unwed parents, it's necessary to take steps to establish legal paternity. According to Modesto paternity law firm Scott Mitchell Law, Inc., paternity can be established by either signing an official Declaration of Paternity or obtaining a court order.

Until paternity has been established, a child's father is not obligated to pay child support and cannot obtain court-ordered visitation rights. In addition, the courts cannot rule on important decisions relating to the child's custody or relocation.

Last updated 8/25/2022

Neighborhoods Served in Modesto

Maze Blvd. / Paradise Rd.
E. Rumble Rd. / McHenry Ave.
Bangs Ave. / Carver Rd.
Sylvan Ave. / Roselle Ave.
W. Grayson Rd. / S. Carpenter Rd.
Tully Rd. / Kiernan Ave.
Stoddard Ave. / McHenry Ave.
Standiford Ave. / Dale Rd.
McHenry Ave. / Sylvan Ave.

Additional Services

Health Street offers a variety of other services, including:


Professional, Friendly Staff
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By Danny on 5/19/2016
I was kind of nervous going in but as I entered and was welcomed by the ladies at the desk my nervousness went away and I felt very comfortable. Your staff was very professional and friendly. And me and my son appreciated that very much. Wish you all a wonderful day
Excellent Service
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By Maria Z. on 5/10/2016
Excellent service
Excellent Service
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By M on 4/11/2016
Excellent Service
Helpful Shelly
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By Marcus R. on 3/17/2016
Shelly was very helpful and sweet.
Years Waiting
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By Clifford T. on 3/10/2016
Been waiting a lot of years for this...thank you


Recede, Kay. "'I only had half of the picture': Modesto woman meets siblings for the first time." KCRA, 25 June 2021, https://www.kcra.com/article/modesto-woman-meets-siblings-first-time/36846946
"'Nobody Knew Anything': Manteca Woman Reunited With Family Through DNA Test Kit." CBS News Sacramento, 25 August 2021, https://www.cbsnews.com/sacramento/news/menteca-dna-test-reunited-with-family/
"Modesto Paternity Lawyer." Scott Mitchell Law Inc., https://www.scottmitchelllaw.com/Family-Law-Home/Family-Law/Paternity.aspx
"Establishing Parentage (Paternity)." California Courts, https://www.courts.ca.gov/1201.htm