DNA Test - Costa Mesa, CA

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Health Street offers DNA testing, legal paternity tests, and sibling DNA tests in Costa Mesa, California at a centrally located testing laboratory. Register now, or call us at (949) 522-8498 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 Costa Mesa 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 - Costa Mesa, California

Costa Mesa CA DNA Testing Locations

Types of DNA Tests at our Costa Mesa, 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 Costa Mesa 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 Costa Mesa CA

Scheduling a DNA test at one of our Costa Mesa 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 Costa Mesa, plus many more locations throughout California and all across the United States. Not every one of our clinics performs paternity testing in Costa Mesa. We'll show you the nearest locations to get a DNA test in Costa Mesa , 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

Over a Decade of Experience

Health Street has been performing DNA testing nationally since 2010.  We have helped thousands of people from Costa Mesa 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 Costa Mesa that they need. 

Costa Mesa, California - DNA testing

Establishing paternity in Costa Mesa, California

Paternity must be established when parents are not married and have a child together. Paternity can be established when the child is born at the hospital by signing a Voluntary Declaration of Paternity.

If the alleged father disagrees with being the biological father or the mother is unsure who the biological father is, it is best to go to court. The alleged father and the child will usually take a DNA test to recognize their relationship, and the judge can establish paternity using the DNA test results. Once the paternity is determined, the judge can also establish child support, health insurance for the child, custody, visitation, and other payments regarding court costs, genetic testing, or attorney's fees.

Regardless of the situation between the alleged father and the mother, the man has every right to request a DNA test if he has doubts about paternity.

Costa Mesa, California: Presumed paternity

California's law is particular about the circumstances that the man will be presumed as the father. In the following cases, the man may be presumed as the biological father:

Parents are married when the child is conceived or born
The man attempted to marry the mother, and the baby was born or conceived during the attempt
The parents married after the birth of the child, and the man agreed to be on the child's birth certificate and to support the child
The man welcomed the child into his home and treated the child as his own. This is called parentage by estoppel, which means that sometimes the court can establish a man as a legal father even if he is not the biological father

These conditions can also apply to same-sex parents and those in registered domestic partnerships after January 2005. Parents who do not fall under these conditions may have to sign a VDP or go to court and take a DNA test to establish paternity, but it is best to seek the advice of legal counsel.

Last updated 10/21/2022

Neighborhoods in Costa Mesa Served by our Clinics

Monticello Community
College Park
Midway City
Newport Coast
Santa Ana
Corona Del Mar
Orange Avenue
Cliff Haven
Eastside South
The Island Streets

Additional Services

Health Street offers a variety of other services, including:


Family Law Attorney Bruce A. Mandel. (2019, May 27). Establishing paternity in California: What's my first step?Torrance Family Law Attorney Bruce A. Mandel. Retrieved October 21, 2022, from https://www.brucemandelattorney.com/establishing-paternity-california-first-steps/
Parentage (paternity). Parentage (Paternity) - paternity_famlaw_selfhelp. (n.d.). Retrieved October 21, 2022, from https://www.courts.ca.gov/selfhelp-parentage.htm?rdeLocaleAttr=en