DNA Testing Locations - Sierra, CA

Paternity, Child Custody, Court

With 35 testing centers in the Sierra area, we offer drug and alcohol testing for employment, probation and DOT requirements. Additional services include DOT consortium enrollment, DNA Testing and background checks. Order your tests and services online or call (800) 221-4291.

35 DNA-Testing Centers in Sierra

Minutes Away, Test Today

2502 Jensen Ave

24.20 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2502 Jensen Ave
Sanger, CA 93657

2570 Jensen Ave, Suite 115

24.23 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2570 Jensen Ave, Suite 115
Sanger, CA 93657

5612 Bisqustone

25.34 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-5:00 PM✓ Walk-in with Electronic Donor Pass
5612 Bisqustone
Fresno, CA 98710

On--site Only

25.93 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
On--site Only
Fresno, CA 93737

755 N Peach Ave Ste C13

26.12 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
755 N Peach Ave Ste C13
Clovis, CA 93611

7005 N Maple Ave Ste 104

27.59 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
7005 N Maple Ave Ste 104
Fresno, CA 93720

7075 N Maple Ave, Ste 104

27.63 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
7075 N Maple Ave, Ste 104
Fresno, CA 93720

7300 N Fresno St Oak 1 Bldg

27.94 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
7300 N Fresno St Oak 1 Bldg
Fresno, CA 93720

1245 E Herndon Ave

28.72 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1245 E Herndon Ave
Fresno, CA 93720

5361 E Kings Canyon Rd

28.88 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
5361 E Kings Canyon Rd
Fresno, CA 93727

7265 N 1st St Ste 105

29.04 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
7265 N 1st St Ste 105
Fresno, CA 93720

6042 N Fresno St Ste 101

29.77 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
6042 N Fresno St Ste 101
Fresno, CA 93710

6101 N Fresno St Ste 103

29.84 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
6101 N Fresno St Ste 103
Fresno, CA 93710

222 W Shaw Ave

30.86 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
222 W Shaw Ave
Fresno, CA 93704

5649 N Palm Ave

31.29 mi
🕑 Testing Hours: Mon–Fri: 9:00 AM-4:00 PM✓ Walk-in with Electronic Donor Pass
5649 N Palm Ave
Fresno, CA 93704

5550 N Palm Ave Ste 107

31.30 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
5550 N Palm Ave Ste 107
Fresno, CA 93704

2911 Tulare St

31.71 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2911 Tulare St
Fresno, CA 93721

2023 Divisadero St,

32.25 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2023 Divisadero St,
Fresno, CA 93701

1350 O Street Suite 101

32.41 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1350 O Street Suite 101
Fresno, CA 93721

1122 Rose Ave, Ste 2

32.53 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1122 Rose Ave, Ste 2
Selma, CA 93662

2113 Merced St

32.67 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2113 Merced St
Fresno, CA 93721

2555 S East Ave

32.69 mi
🕑 Testing Hours: Mon–Fri: 7:00 AM-6:00 PM • Sat: 8:00 AM-12:00 PM✓ Walk-in with Electronic Donor Pass
2555 S East Ave
Fresno, CA 93706

2746 E Jensen Ave

33.18 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2746 E Jensen Ave
Fresno, CA 93706

1850 Whitson St

33.20 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1850 Whitson St
Selma, CA 93662

48677 Victoria Ln,

33.27 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
48677 Victoria Ln,
Oakhurst, CA 93644

4739 W. Shaw Ave, Suite 104

35.21 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
4739 W. Shaw Ave, Suite 104
Fresno, CA 93722

5626 Heddon Ct

43.08 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
5626 Heddon Ct
Mariposa, CA 95338

363 East Almond Avenue, Suite 107

43.22 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
363 East Almond Avenue, Suite 107
Madera, CA 93637

210 S Johnson St Ste C

43.62 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
210 S Johnson St Ste C
Visalia, CA 93291

509 S I St Ste A

43.63 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-6:00 PM✓ Walk-in with Electronic Donor Pass
509 S I St Ste A
Madera, CA 93637

220 S Mooney Blvd Ste D

43.63 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
220 S Mooney Blvd Ste D
Visalia, CA 93291

344 W 6th St

43.72 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
344 W 6th St
Madera, CA 93637

1640 W Mineral King Ave Ste 106

43.75 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1640 W Mineral King Ave Ste 106
Visalia, CA 93291

117 N Akers St

43.77 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
117 N Akers St
Visalia, CA 93291

235 E Noble Ave

43.80 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
235 E Noble Ave
Visalia, CA 93277

How It Works

Legal DNA test – when needing a DNA test for paternity, child custody or any court ordered purpose a legal DNA test must be performed at a testing center, the child/children and the alleged father will be scheduled to go to one of our many testing centers nationwide with appropriate documentation, identification, and the test will be performed by a qualified DNA test collector who will then send the specimen to a certified AABB laboratory. Results will be available in approximately 10 days after the laboratory receives the specimen.

Non-legal DNA test -this test is performed for informational purposes only, a DNA certified test kit will be sent to the purchaser via regular mail or overnight delivery. The kit will include clear instructions of how to perform the DNA test, the purchaser will utilize an oral fluid swab for the child/children and alleged father. upon completion the specimen will be placed in a prepaid delivery envelope and sent to our AABB certified laboratory. Results will be available in approximately 10 days after the specimens are received at the laboratory. Please remember the non-legal DNA test cannot be used in a court of law or for any legal purpose.

Sierra DNA Testing

DNA Testing Services Available at Our Sierra, CA Labs:

In Sierra, CA, our DNA testing services are a reliable method for confirming biological connections, whether for legal purposes like custody and support or personal explorations such as ancestry. Accredited Drug Testing guarantees tests are executed through certified AABB laboratories, producing accurate and legally recognized results. From paternity tests and ancestral exploration to immigration DNA checks, our service makes your testing journey simple, confidential, and efficient. Located conveniently, we're your nearby solution for all genetic inquiries, whether basic curiosity or court-admissible needs.

Testing Types Available:

Legal DNA Testing

Our legal DNA tests, compliant with court standards, provide reliable forensic proof for custody disputes, immigration applications, and adoption cases, ensuring clarity and resolution in critical legal matters.

Non-Legal DNA Testing

Non-legal DNA testing covers a range of personal inquiries from exploring ancestral roots to understanding genetic health, providing valuable insights into one's genetic makeup and familial connections.

How Our DNA Testing Works

Setting up a DNA test in Sierra, CA, begins simply. Visit a local Accredited Drug Testing site for sample collection using non-invasive methods. Our staff handles each specimen with care to maintain integrity.

Once collected, your DNA sample travels to our certified lab. With advanced DNA sequencing and profiling, results undergo rigorous analysis for accuracy and reliability.

In a swift turnaround, typically between 3-5 days, you receive your results. Whether for a legal case or personal information, the findings are accessible, confidential, and secure.

Accuracy and Reliability

Our DNA tests are underpinned by the rigors of AABB accreditation, ensuring precision through scrupulous control measures and certified lab processes. This guarantees the highest accuracy and reliability in every genetic evaluation.

With robust quality control, Accredited Drug Testing maintains exceptional standards, ensuring our DNA test results meet the exacting requirements of legal and personal use, cementing our credibility universally.

Common Reasons for DNA Testing in Sierra

Establishing parentage for custody/support.
Our DNA tests deliver unequivocal evidence for custody and support cases by establishing biological relationships, aiding legal decisions and safeguarding responsible parenting and financial support commitments with court-admissible accuracy.

Confirming familial relationships.
By providing precise answers about familial bonds, our DNA tests clear up uncertainties regarding siblings or other kin, helping to resolve disputes over inheritance and strengthening family ties through verified genetic connections.

Immigration cases requiring proof of biological relationships.
When immigration applications require validation of biological ties, our legal DNA tests offer clear and definitive proofs accepted by immigration authorities, thereby facilitating the reunion of families without bureaucratic impediments.

Adoption cases or identifying unknown biological relatives.
In adoption scenarios, DNA testing brings adoptees closer to their roots by revealing unknown biological relatives. This insight promotes emotional closure, awareness of personal health histories, and a deeper sense of identity.

Genealogy and ancestry exploration.
For those fascinated by heritage and lineage, genealogy DNA tests uncover ethnic backgrounds and ancestral ties, promoting a deeper understanding of historical family dynamics and cultural identity through genetic connections.

Sierra Legal and Court-Admissible Testing

Our DNA tests are court-certified for use in Fresno County, offering precise and court-approved results for family law cases within Sierra, CA. Emphasizing stringent chain-of-custody measures, each test is executed in premier labs that adhere to all legal protocols.

In Sierra, CA, precise determination of biological relationships is vital for custody and family law matters. Our accredited DNA tests follow Fresno County court directives and include comprehensive documentation, thereby ensuring the legal robustness of your findings.

By strictly following Fresno County court standards, our DNA testing reinforces clarity and dependability in family-related legal issues. Families in Sierra, CA, trust our trusted processes and legal documentation to resolve conflicts involving custody and inheritance clearly.

Sierra California Community Resources

Fresno County Family Law Services
Providing legal guidance on DNA test-related family law matters.

USCIS Fresno Field Office
Processing immigration cases requiring biological relationship proof.

Fresno County Health Department
Assisting in health-related aspects of genetic testing.

Fresno County Superior Court
Handling court-admissible DNA test documentation.

Sebastian Family Law Firm
Specializing in custody and support legal matters.

Fresno County Legal Aid
Providing assistance for those facing family law challenges.

Sierra Drug Testing

Quickly find trusted local drug testing centers in Sierra, CA — fast, convenient, and reliable every time!

Sierra DOT Drug Testing

Quickly find a local DOT drug testing center in Sierra, CA — fast, reliable, convenient nationwide service!

Sierra DNA Testing

DNA testing for legal and non-legal purposes including child support, and child custody around Sierra, CA.

Sierra Industry Training

Including specimen collector training, DER training, reasonable suspicion training and much more in Sierra, CA.v

Sierra Hair Drug Testing

Get fast, accurate hair drug testing at our convenient Sierra, CA locations—results you can trust, every time!

Sierra Alcohol Testing

Fast, reliable alcohol testing to keep your workplace safe and compliant every single day in Sierra, CA.

Sierra Drug Testing Services

Reliable nationwide drug testing services ensuring accuracy, compliance, and quick results for businesses and individuals in Sierra, CA.

Sierra 5 Panel Drug Test

Accurate 5 panel drug testing with fast, confidential results—trusted by Sierra, CA employers and individuals nationwide.

Sierra 10 Panel Drug Test

Comprehensive 10 panel drug testing with fast, reliable results—trusted for Sierra, CA workplace and personal testing needs.

Sierra On Site Drug Testing

Convenient on-site mobile drug testing with fast, reliable results—saving time while keeping your Sierra, CA workplace compliant.

Sierra DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Sierra, CA drivers compliant and on the road with confidence.

DOT Consortium

Join our DOT consortium for hassle-free compliance, random testing management, and reliable driver safety solutions.


Frequently Asked Questions

Yes. Accredited Drug Testing provides access to DNA collection locations nationwide. In most cases, individuals can be scheduled at a site close to their home, workplace, attorney’s office, or court jurisdiction for convenience.
Yes, if it is ordered as a legal paternity DNA test and collected under strict chain-of-custody procedures. During a legal test, each tested party’s identity is verified, the collector documents the handoff of the swabs, and the lab issues a report suitable for court, child support enforcement, and other official proceedings.
Accredited Drug Testing also offers non-legal DNA testing. This option still compares DNA profiles but does not require the same level of identity documentation or chain of custody. These results are for personal knowledge and are typically not intended for courtroom use.
Immigration-related DNA testing is used to confirm a claimed biological relationship, such as parent and child, when other documentation is incomplete or unavailable. Properly collected and documented DNA samples can be submitted as supporting evidence in visa or residency applications.
Most DNA tests use a painless cheek swab (buccal swab). A trained collector swabs the inside of the cheek to collect cells containing each person’s DNA. In legal and immigration cases, this process is witnessed, logged, and sealed to protect the integrity of the results.
Yes. Results are released only to the authorized requesting party, such as the tested adult, legal guardian, attorney, court/probation contact, or designated immigration representative. All results are handled under strict confidentiality and documented securely.
Yes. Accredited Drug Testing provides relationship DNA tests, including grandparent DNA tests, sibling tests, avuncular (aunt/uncle) tests, and other kinship analyses. These tests help establish or confirm a biological relationship when one or both biological parents cannot participate.
In many cases, DNA collection appointments can be arranged quickly to meet legal timelines, court dates, immigration requests, or custody hearings. The collection is performed at an approved location and then sent for laboratory processing.

Customer Reviews

Excellent service!

Excellent service! Trish went above and beyond to find me a testing site as close to my home as possible. Results were faster than expected, as well. Thanks for your help, Trish and Accredited!

Es Hache - 4/13/2025

Unbelievably fast and Easy

Unbelievably fast and Easy, I wont be using Any other provider from now on.

Ren Wisby - 4/19/2025

Pretty Straightforward

It was a pretty straightforward process getting an appointment and making payment. Getting to the testing site was quick. I was in and out in no time.

Sadiat Ogunyemi - 12/19/2024

Fast and efficient service

Fast and efficient service for employers wanting to do pre employment drug screening that meets DOT requirements!!

Mary Thomas - 4/5/2025

Quick, knowledgeable and courteous

Quick, knowledgeable and courteous Janelle worked diligently to support me. I am recommending their services to anyone looking.

Greensboro Joseph - 11/19/2024

phone support has been excellent

I have used ADT several times. Their phone support has been excellent, both when putting in the orders and when asking for help to interpret results.

Tee Ess - 12/19/2024

Clear and Competent

I was so surprised with the quality of customer service I received today when I called Accredited Drug Testing. The representative was so clear and competent. She was able to reschedule an appointment at my preferred location. The representative whose name is Justice, was so polite and competent. She expedited the whole process. It was a relief to me.

Rachel Padian - 9/6/2024

Very easy to get scheduled

Very easy to get scheduled and easy process once checked in and the staff were all extremely friendly! I would recommend this company!

Ronickia Moore - 11/19/2024

Very helpful

They were very helpful in finding a place to get tested on the route back home! They made a difficult time seem easy with no judgement!

Anne Creden - 11/19/2024

Fast,easy and efficient

Fast,easy and efficient. They made the whole process stress free and simple. Thanks 😊

Micheal Ankenbrandt - 2/19/2025


(800) 221-4291