Drug Testing Locations - Greenville, TX

Employment, DOT, Court Ordered, Personal
Urine| Hair Follicle | Oral Fluid | Blood | ETG

33 Drug-Testing Centers in Greenville

Minutes Away, Test Today

2406 Stonewall St0.24 miles

2406 Stonewall St
Greenville, TX 75401

4101 Wesley St, Suite G0.75 miles

4101 Wesley St, Suite G
Greenville, TX 75401

3101 Joe Ramsey Blvd E Ste 1051.29 miles

3101 Joe Ramsey Blvd E Ste 105
Greenville, TX 75401

2806 Mitchell St2.02 miles

2806 Mitchell St
Greenville, TX 75402

8110 Wesley St Ste 1003.28 miles

8110 Wesley St Ste 100
Greenville, TX 75402

1705 Live Oak St14.07 miles

1705 Live Oak St
Commerce, TX 75428

1607 E Quinlan Pkwy16.21 miles

1607 E Quinlan Pkwy
Quinlan, TX 75474

494 W Interstate 3017.87 miles

494 W Interstate 30
Royse City, TX 75189

2921 Broken Spoke Ln22.37 miles

2921 Broken Spoke Ln
Rockwall, TX 75087

4302 County Road 464023.63 miles

4302 County Road 4640
Trenton, TX 75490

103 N 1st St24.92 miles

103 N 1st St
Rockwall, TX 75087

9824 Lakeview Pkwy, Suite 20027.38 miles

9824 Lakeview Pkwy, Suite 200
Rowlett, TX 75088

9812 Lakeview Pkwy #10227.38 miles

9812 Lakeview Pkwy #102
Rowlett, TX 75088

6800 Scenic Dr27.54 miles

6800 Scenic Dr
Rowlett, TX 75088

1513 Houston St28.00 miles

1513 Houston St
Sulphur Springs, TX 75482

426 Fm 548 Ste 12428.84 miles

426 Fm 548 Ste 124
Forney, TX 75126

819 E Moore Ave Ste B29.28 miles

819 E Moore Ave Ste B
Terrell, TX 75160

115 Airport Rd29.62 miles

115 Airport Rd
Sulphur Springs, TX 75482

105 Medical Plz29.71 miles

105 Medical Plz
Sulphur Springs, TX 75482

910 W University Dr30.04 miles

910 W University Dr
Mckinney, TX 75069

504 Lipscomb St30.45 miles

504 Lipscomb St
Bonham, TX 75418

4510 Medical Center Dr Ste 21230.50 miles

4510 Medical Center Dr Ste 212
Mckinney, TX 75069

4510 Medical Center Dr, Ste 31030.50 miles

4510 Medical Center Dr, Ste 310
Mckinney, TX 75069

1920 W Eldorado Pkwy30.59 miles

1920 W Eldorado Pkwy
Mc Kinney, TX 75069

1515 Heritage Dr, Ste 10030.63 miles

1515 Heritage Dr, Ste 100
Mckinney, TX 75069

130 S Central Expy30.79 miles

130 S Central Expy
Mckinney, TX 75070

809 N Central Expy30.83 miles

809 N Central Expy
Mckinney, TX 75070

109 Tejas Dr Ste 10030.84 miles

109 Tejas Dr Ste 100
Terrell, TX 75160

591 Apache Trl30.96 miles

591 Apache Trl
Terrell, TX 75160

1551 State Highway 34 S31.08 miles

1551 State Highway 34 S
Terrell, TX 75160

2810 S Hardin Blvd32.13 miles

2810 S Hardin Blvd
Mckinney, TX 75070

1300 N Central Expy32.41 miles

1300 N Central Expy
Plano, TX 75074

1101 Raintree Cir, Suite 10032.77 miles

1101 Raintree Cir, Suite 100
Allen, TX 75013

Employment, DOT, Court Ordered, Probation, Family

Accredited Drug Testing provides extensive drug and alcohol testing services through our 33 locations around Greenville, Texas. We administer DOT and non-DOT urine tests, breath alcohol exams, EtG alcohol screens, and hair drug tests tailored for individuals, businesses, and legal purposes. Our Greenville, TX sites offer rapid testing with SAMSA certified lab analyses, including same-day service—most centers are conveniently situated close to your home or office. We also conduct Occupational Health Evaluations, Clinical Assessments, and Background Screenings.

Dial (800) 221-4291 or sign up online. Choose a test and pick a nearby center—available for personal, employee, or third-party needs. Scheduling is quick and straightforward, contact our team or book online anytime. Our simplified, intuitive system makes setting up a drug test in Greenville simple and stress-free.

* You must register by phone or online to receive your donor pass/registration prior to proceeding to the testing center. You must bring a valid government issued ID along with the registration/barcode number which was sent to you by email.

When you're searching for drug testing near me or drug testing locations, we provide a simple and convenient process to find a drug and alcohol testing location near you that is certified to provide all of your drug and alcohol testing needs.

Greenville, TX Drug Testing

Drug Testing Services Available at Our Greenville, TX Labs:

At our Greenville drug testing collection sites, Accredited Drug Testing provides one of the widest selections of drug and alcohol testing services available. Whether you're an employer, attorney, court, or private individual, we offer both DOT and non-DOT testing options—ranging from rapid tests to comprehensive lab-based screenings—capable of detecting nearly any substance.

Mobile/On-Site Drug Testing

If you're an employer needing to test 25 or more employees and looking to save time and money, we offer mobile on-site drug testing where we come to you. Call us today for more information.

Drug Testing in Greenville, TX

Greenville, Texas Statistics

In 2021, Hunt County reported a 15% increase in opioid-related overdoses over the previous year.

Greenville, TX accounted for 18% of all drug-related arrests in Hunt County in 2022.

A survey in 2022 showed that 12% of high school students in Greenville, TX admitted to using prescription drugs without a prescription.

In Hunt County, 45% of substance abuse treatment admissions in 2023 were for methamphetamine use.

Greenville Police Department reported handling over 500 drug-related cases in 2022.

In 2020, 28% of Hunt County residents who sought help at substance abuse treatment centers were uninsured.

How does the body eliminate Drugs

Drug elimination is the sum of the processes of removing an administered drug from the body. In the pharmacokinetic ADME scheme (absorption, distribution, metabolism, and excretion), it is frequently considered to encompass both metabolism and excretion. Hydrophobic drugs, to be excreted, must undergo metabolic modification making them more polar. Hydrophilic drugs, on the other hand, can undergo excretion directly, without the need for metabolic changes to their molecular structures.

Although many sites of metabolism and excretion exist, the chief organ of metabolism is the liver, while the organ primarily tasked with excretion is the kidney. Any significant dysfunction in either organ can result in the accumulation of the drug or its metabolites in toxic concentrations.

A variety of other factors impact elimination — intrinsic drug properties, such as polarity, size, or pKa. Also other factors include genetic variation among individuals, disease states affecting other organs, and pathways involved in the way the drug distributes through the body, such as first-pass metabolism.

Issues of Concern

Drug elimination is the removal of an administered drug from the body. It is accomplished in two ways, either by excretion of an unmetabolized drug in its intact form or by metabolic biotransformation followed by excretion. While excretion is primarily carried out by the kidneys, other organ systems are involved as well. Similarly, the liver is the primary site of biotransformation, yet extrahepatic metabolism takes place in a variety of organ systems affecting multiple drugs.

Given the multiple organ systems and the variety of metabolic transformations present, drug elimination can entail a significant degree of complexity. Hydrophilic drugs are typically directly excreted by the kidneys, while hydrophobic drugs undergo biotransformation before excretion. The purpose here is twofold – biotransformation serves both detoxify the exogenous substances as well as to increase their hydrophilicity, ensuring their elimination via the kidneys.

Two broad metabolic pathways of hepatic drug transformation exist. Phase I is the direct modification of the target molecule, whereas phase II entails conjugation of the target to a polar molecule of low molecular weight. Phase I prepare the drug to enter phase II, but single-phase metabolism also exists.

Phase I involves oxidation, reduction, and hydrolysis of the exogenous molecule. These reactions are accomplished by hepatic microsomal enzymes, which reside in the smooth endoplasmic reticulum of the hepatocytes. Best known among them is the cytochrome P450 system, whose enzymes are predominantly involved in oxidative metabolism. Within the cytochrome P450 family (CYP), the enzyme responsible for the metabolism of more than 50% of existing drugs is the CYP3A4. Its activity encompasses various classes of medications, including opioids, immunosuppressants, antihistamines, and benzodiazepines. The enzymes can also be induced or inhibited by a variety of substances they interact with, including pharmaceuticals. The increase in metabolic activity with CYP induction results in a diminished activity of drugs targeted by that particular isoform. Conversely, CYP inhibition will result in increased drug plasma concentration, potentially leading toxicity. The CYP3A4 is induced by phenytoin, phenobarbital, and St. John's wort, while diltiazem, erythromycin, and grapefruit inhibit it. Caution is, therefore, necessary when administering CYP3A4-metabolized drugs in the presence of any of the inhibitors or inducers.

Phase II consists of covalent bonding of polar groups to nonpolar molecules to render them water-soluble and allow renal or biliary excretion. Target molecules enter phase II directly or via initial processing through phase I. A variety of polar adjuncts is transferred, including amino acids, glucuronic acid, glutathione, acetate, and sulfate. Glucuronidation is one of the major pathways of phase II biotransformation. The UDP-glucuronosyltransferase (UGT) enzyme family performs this activity. Typically, glucuronide derivatives possess less or no activity of the original drug, but in some cases, pharmacologically active compounds result. Morphine-6-glucuronide is a phase II metabolite of morphine with significant analgesic activity. As with the CYP enzymes, inducers, and inhibitors of phase II, enzymes exist and may influence the efficacy of drugs that rely on conjugation before excretion.

The first-pass effect is a feature of hepatic metabolism that also plays a role in the elimination of multiple drugs. Here, the enteric consumed drugs are exposed directly to the liver via the portal vein, where they undergo biotransformation before entering the systemic circulation. This activity reduces the bioavailability and needs to be factored into the dose administered to the patient. Intravenously administered drugs are not subject to the first-pass effect.

Extrahepatic drug metabolism takes place in the GI tract, kidneys, lungs, plasma, and skin.

Renal excretion completes the process of elimination that begins in the liver. Polar drugs or their metabolites get filtered in the kidneys and typically do not undergo reabsorption. They subsequently get excreted in the urine. Urinary pH has a significant impact on excretion, as drug ionization changes depending on the alkaline or acidic environment. Increased excretion occurs with weakly acidic drugs in basic urine and weakly basic drugs in acidic urine.

Excretion in the bile is another significant form of drug elimination. The liver can actively secrete ionized drugs with a molecular weight greater than 300 g/mol into bile, from where they reach the digestive tract and are either eliminated in feces or reabsorbed as part of the enterohepatic cycle.

Other pathways of excretion include the lungs, breast milk, sweat, saliva, and tears

Employers in Greenville, TX & Drug Testing Policies

Employers in Greenville, TX, are particularly vigilant in their drug testing policies to ensure a safe and productive work environment. Many local businesses, especially in manufacturing and transportation sectors, adhere to stringent guidelines for workplace testing. Companies often follow federal standards as set by the Substance Abuse and Mental Health Services Administration.

Businesses in Greenville typically implement pre-employment drug screening and random testing to deter substance abuse among employees. The adherence to the Department of Labor guidelines ensures workplaces are free from the adverse effects of substance misuse. These policies are not only preventive but also aim to provide assistance and rehabilitation options for employees struggling with addiction.

Government Efforts with Drug Problems in Greenville, TX

The government in Greenville, TX, alongside Hunt County authorities, is actively involved in addressing the drug problem. They have implemented community outreach programs aimed at educating the public about the dangers of drug abuse and addiction. Additionally, the county works closely with local law enforcement to curb drug trafficking and distribution. Greenville's initiatives are supported by state programs such as the Texas Attorney General's Safeguarding Texans.

State initiatives from Texas Health and Human Services, such as the Substance Use Disorder Programs, provide crucial support to local governments. These programs offer funding and resources for prevention and treatment services. Federal collaboration also plays a role, with the DEA involved in high-level enforcement and regional operations.

Local Drug Busts & News in Greenville, TX

The local authorities in Greenville, TX have been actively working to combat drug-related activities. Recent operations have led to multiple arrests in the city, targeting key figures in a well-known distribution network. The efforts exhibited by law enforcement have not only disrupted illegal trade but also helped prevent potential violence associated with drug trafficking in the community.

In a significant recent operation, Greenville police executed a search warrant that resulted in the uncovering of a clandestine drug lab. The operation was part of a broader initiative to dismantle narcotics manufacturing in the region. Through collaborative efforts with regional agencies, Greenville police aim to curtail the production and distribution of harmful substances.

Community involvement has been pivotal in driving successful outcomes in drug-related incidents in Greenville. Residents have been encouraged to report suspicious activities, leading to increased arrests. This partnership between the public and law enforcement demonstrates the community's commitment to tackling drug issues that have affected local safety and prosperity.

Occupational Health Services

Accredited Drug Testing offers fast, reliable employment screening services in Greenville, TX. Trusted by employers nationwide for accurate results and exceptional service.

Texas DOT/Non DOT Physicals

Texas Vision Tests

Texas Audiograms

Texas Respirator Fit Tests

Texas Lift Tests

Texas Background Checks

Resources & Citations

Texas Substance Use Disorder Resources

North Central Texas Council of Governments

Impact Treatment Center

Recovery Resource Council

Dallas County DWI Resource Center

Grace Place, TX

Your Life Foundation

SAMHSA National Helpline

Greenville Drug Testing

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

Greenville DOT Drug Testing

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

Greenville DNA Testing

DNA testing for legal and non-legal purposes including child support, and child custody around Greenville, TX.

Greenville Industry Training

Including specimen collector training, DER training, reasonable suspicion training and much more in Greenville, TX.v

Greenville Hair Drug Testing

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

Greenville Alcohol Testing

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

Greenville Drug Testing Services

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

Greenville 5 Panel Drug Test

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

Greenville 10 Panel Drug Test

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

Greenville On Site Drug Testing

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

Greenville DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Greenville, TX 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 maintains access to numerous collection sites nationwide, so in most cases a testing location is available close to a donor’s home, workplace, or job site. Same-day scheduling is often possible for both drug and alcohol testing needs.
Employers, DOT-regulated companies, attorneys, courts, probation departments, and private individuals all use Accredited Drug Testing locations. You do not need to be part of a large company to request testing — individuals can order testing directly.
Locations support urine drug tests, hair follicle drug tests, saliva/oral fluid drug tests, instant/rapid screening (where permitted), and evidential breath alcohol testing. Post-accident and reasonable suspicion testing are also available.
Yes. Accredited Drug Testing supports DOT-compliant urine drug testing and evidential breath alcohol testing following 49 CFR Part 40 requirements. This includes pre-employment, random, post-accident, reasonable suspicion, return-to-duty, and follow-up testing for safety-sensitive employees.
In many cases, yes. Same-day or next-day appointments can typically be arranged. This is especially important for urgent needs such as post-accident, reasonable suspicion, court deadlines, or probation compliance.
Yes. Results are released only to the authorized recipient — for example, an employer’s designated representative, the court or probation contact, or the individual who ordered the test. Results are handled securely and are suitable for policy enforcement and legal documentation.
Yes. Accredited Drug Testing offers on-site and mobile collections for employers. Mobile testing is useful for post-accident response, reasonable suspicion situations, high-volume hiring events, and remote job sites where sending employees offsite would cause downtime.
No. You do not need a physician's prescription to request most drug or alcohol tests. Individuals, employers, attorneys, and probation officers can schedule testing directly and send the donor to the assigned collection site.

Customer Reviews

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

Sweet and helpful

Trish was amazing and got me through the sytem very fast and swift. I had a hard time hearing her a couple of times, but she was super sweet and helpful throughout the process. Highly recommend her!

Sophia Schutze - 6/19/2024

Reception is kind and helpful

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

Yusuf Narmuradov - 11/19/2024


(800) 221-4291