Drug Testing Locations - Denver, CO

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

34 Drug-Testing Centers in Denver

Minutes Away, Test Today

1670 Broadway 28th Fl0.69 miles

1670 Broadway 28th Fl
Denver, CO 80202

777 Bannock St0.86 miles

777 Bannock St
Denver, CO 80204

1835 Franklin St0.98 miles

1835 Franklin St
Denver, CO 80218

1730 Blake St Ste 1001.10 miles

1730 Blake St Ste 100
Denver, CO 80202

1920 High St1.18 miles

1920 High St
Denver, CO 80218

1515 Wazee Ste D1.18 miles

1515 Wazee Ste D
Denver, CO 80202

2419 E 5th Ave1.74 miles

2419 E 5th Ave
Denver, CO 80206

2490 W 26th Ave Ste 200a2.05 miles

2490 W 26th Ave Ste 200a
Denver, CO 80211

120 Bryant St2.27 miles

120 Bryant St
Denver, CO 80219

3801 Brighton Blvd2.40 miles

3801 Brighton Blvd
Denver, CO 80216

695 S Broadway,2.42 miles

695 S Broadway,
Denver, CO 80209

2420 W 26th Ave Ste200d2.70 miles

2420 W 26th Ave Ste200d
Denver, CO 80211

1212 S Broadway Ste 1503.09 miles

1212 S Broadway Ste 150
Denver, CO 80210

469 S Cherry St Ste 1013.46 miles

469 S Cherry St Ste 101
Denver, CO 80246

875 S Colorado Blvd3.54 miles

875 S Colorado Blvd
Denver, CO 80246

4101 E Louisiana Ave Ste 1003.98 miles

4101 E Louisiana Ave Ste 100
Denver, CO 80246

Onsite Testing Only 3924 Wolff St4.05 miles

Onsite Testing Only 3924 Wolff St
Denver, CO 80212

420 E 58th Ave Ste 1114.32 miles

420 E 58th Ave Ste 111
Denver, CO 80216

5855 E Stapleton Dr N Ste A1304.36 miles

5855 E Stapleton Dr N Ste A130
Denver, CO 80216

1780 S Bellaire St Ste 3024.49 miles

1780 S Bellaire St Ste 302
Denver, CO 80222

6750 E Stapleton Dr S4.81 miles

6750 E Stapleton Dr S
Denver, CO 80216

6900 E 47th Avenue Dr Ste 1004.95 miles

6900 E 47th Avenue Dr Ste 100
Denver, CO 80216

5720 Holly St5.39 miles

5720 Holly St
Commerce City, CO 80022

5101 Quebec St5.57 miles

5101 Quebec St
Commerce City, CO 80022

1864 S. Wadsworth Blvd #35.75 miles

1864 S. Wadsworth Blvd #3
Lakewood, CO 80232

5275 Marshall St Ste 2015.78 miles

5275 Marshall St Ste 201
Arvada, CO 80002

499 E Hampden Ave Ste 2905.92 miles

499 E Hampden Ave Ste 290
Englewood, CO 80113

125 E Hampden Ave5.92 miles

125 E Hampden Ave
Englewood, CO 80113

7500 W Mississippi Ave Ste A 2305.96 miles

7500 W Mississippi Ave Ste A 230
Lakewood, CO 80226

730 W Hampden Ave Ste 2005.97 miles

730 W Hampden Ave Ste 200
Englewood, CO 80110

901 W Hampden Ave Unit 1035.98 miles

901 W Hampden Ave Unit 103
Englewood, CO 80110

7585 W Arkansas Ave Ste B6.09 miles

7585 W Arkansas Ave Ste B
Lakewood, CO 80232

3601 S Clarkson St6.09 miles

3601 S Clarkson St
Englewood, CO 80113

P O Box 179 Mail Stop 13986.26 miles

P O Box 179 Mail Stop 1398
Littleton, CO 80201

Employment, DOT, Court Ordered, Probation, Family

Accredited Drug Testing offers a wide range of drug and alcohol testing services across our 34 centers in the Denver, Colorado area. Our offerings include DOT and non-DOT urine drug tests, breath alcohol tests, EtG testing, and hair drug analysis for personal, employer, or legal requirements. Our Denver locations provide quick result testing and utilize SAMSA certified labs, with same-day service available and most facilities just a short distance from your home or office. We also provide Occupational Health Testing, Clinical Testing, and Background Checks.

Contact us at (800) 221-4291 or register online. Choose your desired test and find a convenient location—whether it's for yourself, your employees, or an individual. Test scheduling is simple: call our scheduling department or arrange your test online anytime. Our easy and efficient process ensures you can schedule drug tests near Denver without hassle.

* 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.

Denver, CO Drug Testing

Drug Testing Services Available at Our Denver, CO Labs:

At our Denver 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 Denver, CO

Denver, Colorado Statistics

In 2020, Denver County had a drug overdose death rate of 30.1 per 100,000 people.

Denver's opioid-related deaths accounted for 61% of all drug fatalities in Denver County in 2020.

Methamphetamine was involved in 35% of drug-related deaths in Denver County in 2019.

Denver Police Department reported a 10% increase in drug-related arrests in 2021.

Fentanyl-related deaths in Denver County surged by over 220% between 2018 and 2020.

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 Denver, CO & Drug Testing Policies

Employers in Denver, CO are increasingly implementing stringent drug testing policies. The Colorado Department of Labor and Employment provides guidelines on workplace drug policies, emphasizing a drug-free environment. Learn more at Colorado Department of Labor and Employment.

Many companies in Denver require pre-employment drug screening and periodic checks to ensure safety and productivity. Adhering to state laws, these tests often include checks for substances like marijuana, even though it is legal in the state.

Government Efforts with Drug Problems in Denver, CO

The government has been actively addressing drug issues in Denver, CO, by launching initiatives aimed at reducing substance abuse and providing rehabilitation services. The Denver Department of Public Health & Environment plays a key role in crafting policies and providing resources for affected individuals.

The city also collaborates with state and federal agencies like the Colorado Department of Public Health and Environment to implement comprehensive strategies for drug prevention and treatment. These efforts include public awareness campaigns and increased funding for addiction treatment programs.

Local Drug Busts & News in Denver, CO

Local authorities reported a significant drug bust in early 2023, where law enforcement seized over 200 pounds of narcotics in Denver, CO. This operation highlighted ongoing efforts to curb drug trafficking in the area.

In a recent collaborative operation with the DEA, Denver Police disrupted a prominent fentanyl distribution network, resulting in the arrest of multiple suspects and confiscation of a large quantity of illegal substances.

Occupational Health Services

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

Colorado DOT/Non DOT Physicals

Colorado Vision Tests

Colorado Audiograms

Colorado Respirator Fit Tests

Colorado Lift Tests

Colorado Background Checks

Resources & Citations

SAMHSA National Helpline

Chandra's Clinic

DEA Prescription Take Back

Colorado Behavioral Healthcare Council

Douglas County Behavioral Health

Mental Health Association of Indiana

West Denver Recovery

North Range Behavioral Health

Sourcewell Community Support

Denver Drug Testing

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

Denver DOT Drug Testing

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

Denver DNA Testing

DNA testing for legal and non-legal purposes including child support, and child custody around Denver, CO.

Denver Industry Training

Including specimen collector training, DER training, reasonable suspicion training and much more in Denver, CO.v

Denver Hair Drug Testing

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

Denver Alcohol Testing

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

Denver Drug Testing Services

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

Denver 5 Panel Drug Test

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

Denver 10 Panel Drug Test

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

Denver On Site Drug Testing

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

Denver DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Denver, CO 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

This is by far the easiest

This is by far the easiest way to get my lab work ordered and paid for. The phone calls are short and to the point. They don’t try to push extra sales on you and when I walk in to the clinic I simply show my donor pass and with in a matter of minutes I’m done. I will continue to use ADT in the future.

Jason Jackson - 7/19/2025

Everything was great

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

Olga Petrova - 9/19/2024

Excellant Performance

The visit here is always the best . The place is always really clean. The employees are super courteous, very polite, and professional. This is the only drug lab I like to go do my drug and alcohol test. I would like to tell them thank you so much for thier excellent performance and job

Eli Gonzalez - 1/4/2025


(800) 221-4291