DNA Testing Locations - Westley, CA

Paternity, Child Custody, Court

With 38 testing centers in the Westley 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.

38 DNA-Testing Centers in Westley

Minutes Away, Test Today

1700 Keystone Pacific Pkwy

5.43 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1700 Keystone Pacific Pkwy
Patterson, CA 95363

801 E St

6.74 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
801 E St
Patterson, CA 95363

1064 Woodland Ave Ste F

12.01 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1064 Woodland Ave Ste F
Modesto, CA 95351

3125 Conant Ave

12.76 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3125 Conant Ave
Modesto, CA 95350

400 12th St Ste 23

12.85 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
400 12th St Ste 23
Modesto, CA 95354

400 12th St Suite 23

12.86 mi
🕑 Testing Hours: Mon–Fri: 9:00 AM-5:00 PM✓ Walk-in with Electronic Donor Pass
400 12th St Suite 23
Modesto, CA 95354

4601 Dale Rd Fl 4

13.57 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
4601 Dale Rd Fl 4
Modesto, CA 95356

1441 Florida Ave

13.70 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1441 Florida Ave
Modesto, CA 95350

1541 Florida Ave Ste 102

13.72 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1541 Florida Ave Ste 102
Modesto, CA 95350

1524 Mchenry Ave Ste 500

13.79 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1524 Mchenry Ave Ste 500
Modesto, CA 95350

1524 Mchenry Ave Ste 160

13.87 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1524 Mchenry Ave Ste 160
Modesto, CA 95350

1524 Mchenry Ave. Ste 120,

13.87 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1524 Mchenry Ave. Ste 120,
Modesto, CA 95350

2112 Mchenry Ave

14.14 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2112 Mchenry Ave
Modesto, CA 95350

600 Coffee Rd

14.18 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
600 Coffee Rd
Modesto, CA 95355

1550 Colony Rd Ste B

14.51 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1550 Colony Rd Ste B
Ripon, CA 95366

1700 Coffee Rd

14.75 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1700 Coffee Rd
Modesto, CA 95355

1340 Mitchell Rd

14.91 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-5:00 PM✓ Walk-in with Electronic Donor Pass
1340 Mitchell Rd
Modesto, CA 95351

1140 Norman Dr, Ste 2

16.90 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1140 Norman Dr, Ste 2
Manteca, CA 95336

1341 Historical Plaza Way

17.01 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1341 Historical Plaza Way
Manteca, CA 95336

965 E Yosemite Ave Ste 9

17.15 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
965 E Yosemite Ave Ste 9
Manteca, CA 95336

1779 W Yosemite Ave Fl 202

17.33 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1779 W Yosemite Ave Fl 202
Manteca, CA 95337

1205 E North St

17.40 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1205 E North St
Manteca, CA 95336

901 Darcy Pkwy

18.22 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
901 Darcy Pkwy
Lathrop, CA 95330

632 West 11th Street, Suite 115

18.39 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
632 West 11th Street, Suite 115
Tracy, CA 95376

644 W 12th St

18.51 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-5:00 PM✓ Walk-in with Electronic Donor Pass
644 W 12th St
Tracy, CA 95376

1248 Main St,

18.78 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1248 Main St,
Newman, CA 95360

1048 Geer Rd

19.47 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1048 Geer Rd
Turlock, CA 95380

911 E Tuolumne Rd

19.90 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
911 E Tuolumne Rd
Turlock, CA 95382

2160 W Grant Line Rd Ste 230

19.93 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2160 W Grant Line Rd Ste 230
Tracy, CA 95377

1801 Colorado Ave Ste 130

20.11 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1801 Colorado Ave Ste 130
Turlock, CA 95382

2000 Paulson Rd

20.79 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2000 Paulson Rd
Turlock, CA 95380

1390 W H St Ste C

23.45 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1390 W H St Ste C
Oakdale, CA 95361

3663 Arch Rd Ste 400

24.61 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3663 Arch Rd Ste 400
Stockton, CA 95215

1429 W Fremont St

28.66 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1429 W Fremont St
Stockton, CA 95203

1800 N California St

29.52 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1800 N California St
Stockton, CA 95204

1805 N California St Ste 303

29.52 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1805 N California St Ste 303
Stockton, CA 95204

5570 Stockton Loop

30.05 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
5570 Stockton Loop
Livermore, CA 94550

2291 W March Lane, Suite 145 F

31.16 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2291 W March Lane, Suite 145 F
Stockton, CA 95207

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.

Westley DNA Testing

DNA Testing Services Available at Our Westley, CA Labs:

Explore a new dimension of certainty in Westley, CA with our extensive DNA testing services. At Accredited Drug Testing, we specialize in delivering highly accurate genetic insights covering paternity, ancestry, and more. Our certified laboratories leverage advanced DNA sequencing and profiling techniques to ensure unparalleled test accuracy. From genealogical explorations to legal requirements in Stanislaus County, every DNA test supports your quest for knowledge and resolution. With a focus on confidentiality and speedy processing, our DNA analysis services offer reliable results tailored for both personal use and official needs, providing pivotal clarity and peace of mind. Discover your story, confirm vital relationships, or address critical legal documentation with the precision your circumstances demand.

Testing Types Available:

Legal DNA Testing

Designed for judicial use, our Legal DNA Testing delivers irrefutable proof of biological relationships, maintaining rigorous chain-of-custody protocols and court-recognized results, vital for family law matters, custody disputes, and immigration cases.

Non-Legal DNA Testing

Non-Legal DNA Testing offers a flexible approach for personal insight into genetic markers, family connections, and genealogical exploration without the requirements imposed by court procedures, perfect for ancestry and health research.

How Our DNA Testing Works

Begin with a simple appointment setup at our nearby Westley, CA testing center. Our professional team ensures easy and hygienic sample collection.

Samples are then securely transferred to our accredited lab where expert technicians conduct detailed genetic assays and DNA profiling.

Within 3-5 days, results are delivered with precision, providing comprehensive insights into your DNA composition and familial relationships.

Accuracy and Reliability

Accredited Drug Testing prioritizes test accuracy through our AABB Certified Laboratories, ensuring your results are both reliable and repeatable.

Our DNA testing process is enhanced by stringent quality control measures and expert oversight, providing you with confidence in every test result.

Common Reasons for DNA Testing in Westley

Establishing parentage for custody/support.
DNA testing is a critical tool for verifying parentage in custody and support legal matters, providing indisputable proof necessary for judicial resolutions that ensure proper parental roles and accurate support commitments.

Confirming familial relationships.
Confirm the bonds that unite your family through precise DNA testing. This process resolves questions of biological connections, from siblings to extended relatives, offering assurance and resolving family heritage or inheritance discussions.

Immigration cases requiring proof of biological relationships.
For immigration documentation, ensure your applications are supported by legal DNA evidence, eliminating ambiguities in family relationships. These genetic tests are recognized for visa approvals, aiding in the prompt unification of families.

Adoption cases or identifying unknown biological relatives.
Our DNA testing facilitates adoptees in finding biological family members, which is instrumental in understanding genetic heritage, contributing to emotional well-being, and supplementing family medical histories.

Genealogy and ancestry exploration.
Delve into your past with genealogical DNA testing, revealing hidden ancestry, diverse ethnic roots, and ancient kin, enriching your comprehension of cultural and familial lineage.

Westley Legal and Court-Admissible Testing

Your DNA tests adhere to strict legal standards in Stanislaus County, ensuring their reliability and admissibility in court proceedings. With meticulous chain-of-custody procedures, all tests are conducted in accredited labs to meet Westley, CA's legal requirements.

Accurate biological verification is paramount in family law and custody situations in Westley, CA. Our certified services meet Stanislaus County's legal conditions, providing comprehensive documentation to preserve the authenticity of your DNA test conclusions.

Adhering to Stanislaus County's rigorous court standards, our DNA testing services empower families in Westley, CA with precise clarity in complex legal matters, supporting fair resolutions in custody cases, inheritance issues, and paternity confirmations.

Westley California Community Resources

Stanislaus County Superior Court
Local court handling family law and legal disputes requiring DNA evidence.

Stanislaus County Bar Association
Find qualified family law attorneys in Westley, CA for legal guidance.

USCIS Sacramento Field Office
Manage immigration cases requiring DNA test confirmation.

Stanislaus County Health Services Agency
Local health department providing public health support and resources.

Westley Family Law Office
Expertise in handling family law matters and legal DNA testing.

Immigration Direct Services
Guidance and support for immigration procedures involving DNA verification.

Westley Drug Testing

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

Westley DOT Drug Testing

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

Westley DNA Testing

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

Westley Industry Training

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

Westley Hair Drug Testing

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

Westley Alcohol Testing

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

Westley Drug Testing Services

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

Westley 5 Panel Drug Test

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

Westley 10 Panel Drug Test

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

Westley On Site Drug Testing

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

Westley DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Westley, 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

Friendly and Knowledgeable

I reached out Accredited Drug Testing/Secure Screenings to partner for my drug testing business (Discovery Diagnostics Columbia SC) and the process was extremely easy. I worked with Sicilia who was amazing. She was friendly & knowledgeable, and answer all of my questions with ease.

Kendra Harley - 3/26/2025

Super Easy to Schedule

Super easy to schedule and get what you need, weather for a job, personal, or court ordered! I believe I spoke with Justine who was helpful in answering all my questions and stayed on the phone with me until she was sure I was all set and got the emails I needed.

Mandy Ryan - 12/14/2024

Hassle Free Experience

It was easy to make the arrangements to get to someone in regards to renewing my DOT medical certificate. They took care of everything over the phone which made my experience hassle free. I will definitely be using them again and you should too.

Jim Raymond - 10/18/2024

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

Saved My CDL!

Time was running out before my Cdl got downgraded because of a violation I had on clearinghouse. I couldn't find an employer to send me for my return to duty test, but these guys had my test scheduled and done in the same day! They saved my cdl. Thank you again!

Michael Williams - 12/2/2024

Everything was great

Everything was great, the staff was very polite. Thank you.

Olga Petrova - 9/19/2024

ADT is truly the best

Where do I start?!! ADT is truly the best!! I had the pleasure of speaking with Tori today! She was excellent, professional and truly went above and beyond in her kind, compassionate care and commitment to providing me with the best service possible. I was in such a time crunch, but I was able to call, order the test, pay for it over the phone and get the test I needed within the hour. Not only did this put my mind at ease, they saved my job!! I am forever grateful for this team of hard workers, that care, with such great work ethics! Thank you from the very bottom of my heart!!! If you need a drug, alcohol, etc… screening, this team will be your lifesavers!!

Sarah Patterson - 4/8/2025

Reception is kind and helpful

Reception is kind and helpful , everything quick and simple , best urgent care

Yusuf Narmuradov - 11/19/2024

Extremely pleasant

Initially Torrie helped me but I needed to call back. When I called back Kayla stepped in and finished my order. Both were extremely pleasant over the phone and provided wonderful customer service. Kudos to them!

Brynne Beverly - 4/19/2024

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


(800) 221-4291