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TestMark DNA
DNA testing collection site in Walnut Creek, California

DNA Testing in Walnut Creek, California - 1450 Treat Blvd

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All collection sites are CLIA-certified - the federal standard for clinical laboratory testing.

Discreet
Certified Network
Results in 3-5 Days
Confidential

2,297+

Certified Collection Sites

50

States Covered

99.99%

Accurate Results

Location

TestMark DNA - Walnut Creek

1450 Treat Blvd

Walnut Creek, CA 94597

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Hours of Operation

Monday6:30 AM - 8:00 PM
Tuesday6:30 AM - 8:00 PM
Wednesday6:30 AM - 8:00 PM
Thursday6:30 AM - 8:00 PM
Friday6:30 AM - 8:00 PM
Saturday8:00 AM - 5:00 PM
Sunday8:00 AM - 5:00 PM

Location Map

DNA testing in Walnut Creek, California is available at our certified collection site located at 1450 Treat Blvd. TestMark DNA manages the full testing process from your initial consultation through confidential results delivery. Our collection sites are part of a nationwide network of CLIA-certified facilities - the same laboratories used by hospitals and physicians. Walk-ins are welcome and no doctor's order is required. Call (866) 702-7644 to schedule your test today.

How It Works

1

Call for a Free Consultation

Call our team and we'll walk you through the right test, answer your questions, and confirm your nearest location.

(866) 702-7644
2

Visit Your Local Collection Site

Visit 1450 Treat Blvd, Walnut Creek, CA 94597. A quick, painless cheek swab is all that is needed.

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3

Get Results in 3-5 Business Days

Receive your confidential results delivered securely by email. Results are accurate, private, and legally defensible.

Frequently Asked Questions

Where can I get a DNA paternity test in Walnut Creek, California?

TestMark DNA has a certified collection site at 1450 Treat Blvd, Walnut Creek, California 94597. No appointment is needed and results are typically returned in 3 to 5 business days.

Do I need a doctor's order or court order for DNA testing in California?

A doctor's order is generally not required. However, if you are a New York State resident, a prescription, court order, or ordering by other authorized persons is required by state law for all DNA identity or relationship tests.

Can DNA testing be done without the mother present?

Yes. A DNA paternity test can be performed without a sample from the child's biological mother. Including the mother's sample is preferred when possible as it improves accuracy.

How long do DNA test results take near Walnut Creek?

Results for a standard DNA paternity test are typically returned within 3 to 5 business days from when all samples are received at the laboratory.

Is DNA testing confidential?

Yes. All samples are packaged in tamper-proof bags and processed at an accredited laboratory with restricted access. Results are shared only with authorized individuals and are never released over the phone.

What type of sample is collected for a DNA test?

The standard sample is a buccal swab - a cotton swab rubbed gently inside the inner cheek. It is painless, non-invasive, and provides the same accuracy as a blood sample.

Will DNA test results be accepted in court?

Results from a legal DNA paternity test performed at an accredited facility may be accepted in court, provided the chain-of-custody form was completed according to laboratory guidelines. Non-legal test results are not intended for court use.

Is DNA paternity testing covered by health insurance?

DNA paternity testing is considered a non-medical test and is not covered by health insurance plans.

Legal vs Personal DNA Testing

LEGAL

Legal DNA Test

  • Court-admissible results
  • Chain-of-custody documentation
  • Government ID required at collection
  • Results accepted in legal proceedings
  • Collected at certified site only
PERSONAL

Personal DNA Test

  • For personal knowledge only
  • No chain of custody required
  • No ID required
  • Results not for legal use
  • Can collect samples at home

Both options available - call to confirm which is right for your situation.

Not sure which test you need? Call for a Free Consultation - (866) 702-7644

Nearby Locations

TestMark DNA - Walnut Creek

177 La Casa Via Suite 150, Walnut Creek, CA 94598

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TestMark DNA - Pleasant Hill

2675 Pleasant Hill Rd, Pleasant Hill, CA 94523

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TestMark DNA - Walnut Creek

1914 Tice Valley Blvd, Walnut Creek, CA 94595

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TestMark DNA - Concord

2425 East St Ste 6, Concord, CA 94520

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TestMark DNA - Lafayette

3466 Mt Diablo Blvd Ste C102, Lafayette, CA 94549

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