DNA Test - San Marcos, CA

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Health Street offers DNA testing, legal paternity tests, and sibling DNA tests in San Marcos, California at 2 conveniently located testing centers. Register now, or call us at (760) 279-8242 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 your San Marcos DNA test appointment online. Our legal DNA test results can be used in court for matters such as: child support, birth certificates, and custody cases. Appointments can be scheduled together or separately. Legal DNA tests are done by cheek swab at our testing centers. We also offer home DNA test kits for peace of mind. DNA can be tested from hair, fingernails, and other specimens.

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DNA Test - San Marcos, California

San Marcos CA DNA Testing Locations

Types of DNA Tests at our San Marcos, California locations:

The most commonly ordered DNA test is a Paternity Test to conclusively establish whether or not a man is the biological father of a child.

Paternity Testing can be performed at our testing centers. DNA Testing can be done for other close family relationships, such as:

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 people being tested. 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 registering online and shipping the specimens to us.

Legally Admissible DNA Tests vs. "Peace of Mind" At-Home Tests

A Legal Paternity Test is a court admissible DNA testing service. 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. In order for the results of a DNA test to hold up in court, for child support, or to change the name on a birth certificate, the test must be done at a clinic using strict chain of custody procedures. Our San Marcos DNA testing technicians are trained to follow guidelines that ensure that the results can be used for legal purposes.

How to schedule a DNA Test in San Marcos CA

Scheduling a DNA test at one of our San Marcos 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. Register online, or please call our customer service team, which can help you book your appointment over the phone.

We have state of the art testing labs and friendly clinics that perform the DNA sample collection in San Marcos, plus many more locations throughout California and all across the United States. Not every one of our clinics performs paternity testing in San Marcos. We'll show you the nearest locations to get a DNA test in San Marcos , CA so you can choose the testing center that is most convenient. When you register, you can also pick the appointment time and date that you prefer.

Why Health Street

A Decade Plus of Experience

Health Street has provided DNA tests since 2010. We have provided DNA tests and paternity tests to thousands of people in San Marcos as well as communities all across the nation.

Dedicated to Excellence

We are proud to help families and individuals get DNA testing in San Marcos. 

San Marcos, California - DNA Testing

Establishing paternity in San Marcos, CA

Unmarried San Marcos, California, parents have several options for establishing paternity. They can sign a Voluntary Declaration of Parentage (VDP) or go to court for the judge to establish it. Usually, when parents agree and have no doubts about paternity, they sign and file the VDP form at the hospital right after the baby is born. Since this is a legal document establishing the legal father, parents should only sign it if they are confident.

However, the parents may sometimes be unsure or disagree about the biological father's identity. In these cases, parents often go to court for the judge to determine paternity. The judge will likely order DNA testing for the child and the father to decide whether or not they are related. When the DNA results are returned to the court, the judge may use them to determine paternity. However, it is important to remember that other factors may also be considered in paternity cases.

After legal paternity has been established in San Marcos, parents can also go through the court to determine child support, custody, and visitation hours if necessary. The legal father can gain rights and responsibilities for the child.

San Marcos, California: Disputing paternity

If the paternity has not been established yet and the alleged father disagrees with paternity, he can dispute it and request DNA testing. The DNA test can show a father-child relationship with about 99 percent accuracy. The DNA test is usually done as a cheek swab. It is quick, painless, and very accurate. Based on the DNA test results, paternity may be disputed.

Sometimes people establish paternity voluntarily, and then they change their minds. If the father disagrees with paternity after it has already been legally established, it may be best to contact a lawyer. Once paternity is determined, it can be very challenging and complex to dispute.

Last updated 12/14/2022

Some San Marcos Neighborhoods That We Serve

Victory Gardens
Sierra Circle
Holland Street
Downtown Association
Wallace Addition
Millview Eest
Southwest Hills
Sunset Acres

Additional Services

Health Street offers a variety of other services, including:


Parentage (paternity). Parentage (Paternity) - paternity_famlaw_selfhelp. (n.d.). Retrieved December 13, 2022, from https://www.courts.ca.gov/selfhelp-parentage.htm?rdeLocaleAttr=en