Drug & Alcohol Testing Near Me - Riverhead, NY

Accredited Drug Testing provides drug and alcohol testing services at multiple locations throughout your local area.  

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

35 Drug-Testing Centers in Riverhead

Minutes Away, Test Today

230 W Main St0.20 miles

230 W Main St
Riverhead, NY 11901

877 E Main St0.80 miles

877 E Main St
Riverhead, NY 11901

1228 E Main St1.16 miles

1228 E Main St
Riverhead, NY 11901

887 Old Country Rd, Ste C1.24 miles

887 Old Country Rd, Ste C
Riverhead, NY 11901

170 Old Country Rd1.45 miles

170 Old Country Rd
Riverhead, NY 11901

47 Commerce Ave2.10 miles

47 Commerce Ave
Riverhead, NY 11901

74 Commerce Drive, Suite 22.17 miles

74 Commerce Drive, Suite 2
Riverhead, NY 11901

21 Eastport Manor Rd7.27 miles

21 Eastport Manor Rd
Eastport, NY 11941

6144 Route 25a, Building B, Suite 89.19 miles

6144 Route 25a, Building B, Suite 8
Wading River, NY 11792

617 A Montauk Hwy10.91 miles

617 A Montauk Hwy
Center Moriches, NY 11934

625 Main St10.93 miles

625 Main St
Center Moriches, NY 11934

240 Meeting House Ln14.83 miles

240 Meeting House Ln
Southampton, NY 11968

606 Middle Country Rd15.56 miles

606 Middle Country Rd
Middle Island, NY 11953

765 Route 25a16.61 miles

765 Route 25a
Miller Place, NY 11764

17 Howard Dr17.04 miles

17 Howard Dr
Coram, NY 11727

570 Expressway Dr South, Suite1-j17.47 miles

570 Expressway Dr South, Suite1-j
Medford, NY 11763

1647 Route 11217.94 miles

1647 Route 112
Medford, NY 11763

1850 Route 11218.02 miles

1850 Route 112
Coram, NY 11727

37 Beach Ave19.14 miles

37 Beach Ave
Port Jefferson Station, NY 11776

325 Middle Country Rd Ste C19.41 miles

325 Middle Country Rd Ste C
Selden, NY 11784

1723 N Ocean Ave, Ste D19.74 miles

1723 N Ocean Ave, Ste D
Medford, NY 11763

1743 N Ocean Ave19.85 miles

1743 N Ocean Ave
Medford, NY 11763

5225 Route 347 Bldg 131419.85 miles

5225 Route 347 Bldg 1314
Port Jefferson Stati, NY 11776

1660 Route 112 Ste E20.07 miles

1660 Route 112 Ste E
Port Jefferson Station, NY 11776

1010 Route 112, 2nd Floor20.07 miles

1010 Route 112, 2nd Floor
Port Jefferson Station, NY 11776

Brookhaven Professional Park, 285 Sills Road, Building 8, Su20.31 miles

Brookhaven Professional Park, 285 Sills Road, Building 8, Su
East Patchogue, NY 11772

475 E Main St 2nd Fl20.36 miles

475 E Main St 2nd Fl
Patchogue, NY 11772

235 Boyle Rd,20.49 miles

235 Boyle Rd,
Selden, NY 11784

100-10 South Jersey Avenue, Stop-n-shop Plaza20.63 miles

100-10 South Jersey Avenue, Stop-n-shop Plaza
East Setauket, NY 11733

82 12th Ave20.86 miles

82 12th Ave
Holtsville, NY 11742

18 Terrell St20.89 miles

18 Terrell St
Patchogue, NY 11772

35 Marlin Rd21.47 miles

35 Marlin Rd
Centereach, NY 11720

23 Technology Dr., Suite 222.24 miles

23 Technology Dr., Suite 2
East Setauket, NY 11733

203 Union Ave23.36 miles

203 Union Ave
Holbrook, NY 11741

4681 Veterans Memorial Hwy23.72 miles

4681 Veterans Memorial Hwy
Holbrook, NY 11741

Drug Testing Near Me

Searching for reliable drug testing services nearby? Accredited Drug Testing, Inc. is a renowned nationwide provider, offering same-day drug and alcohol screening with an expansive network of over 20,000 locations across the United States, including in Riverhead, NY. We cater to a variety of needs, including DOT-regulated tests, court-mandated screenings, employment-related tests, or personal testing requirements. Our process is designed to be quick, straightforward, and confidential. Our certified collection sites and advanced laboratories guarantee results that are both accurate and compliant with federal and state regulations. You can either call (800) 221-4291 or book online 24/7 to locate the most convenient drug testing center near you. With Accredited Drug Testing, your safety and compliance needs are ensured with precision and timeliness at every step.

Drug and Alcohol Testing Options

Urine Drug Testing Available Panels
5 Panel Drug Test (DOT/NON DOT)
5 Panel + Alcohol Drug Test
5 Panel + ETG Alcohol Drug Test
10 Panel Drug Test
10 Panel + ETG Alcohol Drug Test
12 Panel Drug Test
Hair Drug Testing Available Panels
5 Panel Hair Drug Test
5 Panel + ETG Hair Drug Test
10 Panel Hair Drug Test
12 Panel Hair Drug Test
14 Panel Hair Drug Test
16 Panel Hair Drug Test
Alcohol Drug Testing Available Panels
Alcohol Urine Drug Test
ETG Alcohol Test (Urine)
Breath Alcohol Test
Blood Alcohol Test
Peth Alcohol Blood Test
ETG Alcohol Test (Hair)

Customized Testing Options Available l Discounts available for Bulk Purchases l Onsite Drug Testing Services

How Urine Drug Testing Works

In Riverhead, NY and nationwide, urine drug testing stands as the preferred assessment strategy, particularly for DOT-regulated screenings under 49 CFR Part 40. This procedure detects recent substance use by evaluating a urine sample for drugs, metabolites, or alcohol indicators. The process is meticulously standardized, ensuring confidentiality and delivering results that withstand legal scrutiny, serving requirements of employers, individuals, and judicial directives.

Testing Methods & Collection Process

1. Donor Identity Verification

The individual must present valid government-issued identification and fill out the necessary chain-of-custody paperwork before testing commences.

2. Secure Collection Environment

Urine samples are gathered in a closely monitored restroom setting, tailored to avert interference. Personal belongings may be limited, and measures like securing water sources and dyeing toilet water are implemented to boost security.

3. Chain of Custody Documentation

A federally recognized Chain of Custody Form (CCF) meticulously records the sample from its collection through to lab analysis, safeguarding its integrity and legal validity.

4. Temperature & Validity Checks

Immediately upon collection, the specimen's temperature and appearance are assessed. The laboratory further conducts validity tests, examining parameters such as creatinine, pH, specific gravity, and screening for adulterants.

5. DOT Split Specimen

For DOT screenings, the urine sample is divided into two vials: Bottle A for initial analysis and Bottle B for retesting in cases of disputed results. Single vial collection suffices for non-DOT testing.

6. Laboratory Screening & Confirmation

Samples undergo rigorous screening in SAMHSA-certified labs following a dual-phase methodology:

  • Initial Immunoassay Screen: Identifies broad drug categories.
  • Confirmation Testing: Employing GC/MS or LC/MS for precise detection of drugs or metabolites.

7. MRO Verification

A licensed Medical Review Officer carefully examines any non-negative results, ensures accuracy, and consults with donors regarding possible medical justifications before finalizing results.

How Long Do Urine Test Results Take?

  • Instant Urine Test: Prompt negative results; positive samples forwarded for further verification (24-72 hours).
  • Lab-Based Urine Test: Generally, 24-48 hours for most negatives.
  • DOT Drug Test: 1-3 business days subject to MRO review and donor interactions.
  • Urine EtG Alcohol Test: Expected turnaround is 24-48 hours.

Extra time may be necessary for shy bladder conditions, invalid samples, or if lab confirmation or donor discussion is warranted.

Benefits of Urine Drug & Alcohol Testing

  • Currently the sole DOT sanctioned and federally acknowledged option for regulated testing.
  • Effective for detecting recent usage, suitable for workplaces and incidents post-accidents.
  • Low cost with rapid response time.
  • Widely recognized by judiciary systems, employers, and governmental bodies.
  • Rapid testing alternatives accessible for immediate results.
  • Exceptionally accurate with technological aids like GC/MS or LC/MS for confirmation.

Limitations of Urine Drug & Alcohol Testing

  • Shorter detection span (1-7 days for most substances).
  • Risk of tampering absent robust security practices.
  • Cannot detail long-term or historical consumption trends.
  • Necessitates restroom access and particular collection protocols.
  • Standard urine assessments do not reveal alcohol presence unless EtG/EtS assays are involved.

Despite these limitations, urine testing persists as the most viable and widespread form for substance and alcohol examinations across the country.

How Hair Drug Testing Works

In Riverhead, NY and beyond, hair drug and alcohol testing emerges as a remarkably credible and comprehensive laboratory method. While urine tests capture recent consumption, hair assessments offer a 90-day detection period, making them invaluable for identifying long-term substance use trends. This suitability makes it ideal for purposes such as employer screenings, legal considerations like custody battles, and any scenario demanding a panoramic review of an individual's history with substances.

Testing Methods & Collection Process

1. Donor Identity Verification

At the commencement of the collection, individuals are required to present valid government-verified ID, after which proper documentation including consent and chain-of-custody forms must be signed for accuracy and legitimacy.

2. Hair Collection Procedure

The procedure involves a trained specialist acquiring a small cluster of hair - generally about 100-120 strands - cut near the scalp. Ideally, the sample is taken from the crown region, but in the absence of head hair, body hair may serve as a substitute. The entire process is both rapid and conducted under direct observation.

3. Chain of Custody Documentation

Completion of a comprehensive Hair Drug Test Custody and Control Form is necessary to ensure evidence of the sample's collection, sealing, and movement, maintaining its legal credibility and protection.

4. Laboratory Preparation & Analysis

Once the sample reaches the lab, it undergoes a sequence of meticulous forensic steps:

This is followed by advanced laboratory testing:

5. Metabolite Detection

As hair grows, drug metabolites embed themselves within the shaft, creating an enduring and tamper-resistant account of substance use. The internal integration of these metabolites makes it exceedingly challenging to adulterate or deceive.

6. MRO Review

A certified Medical Review Officer examines any non-negative results to corroborate their accuracy, exploring potential medical explanations before issuing the official outcomes.

How Long Do Hair Test Results Take?

Although hair testing requires more extended lab processing than urine testing, it assures unmatched consistency in detection.

Benefits of Hair Drug & Alcohol Testing

  • 90-day detection period offering insights into long-term usage patterns.
  • Incredibly difficult to falsify or adulterate test results.
  • Delivers valuable insights into consistent, sporadic, or halted drug use trends.
  • Perfectly suits legal scenarios, custody disputes, and compliance programs.
  • Quick and non-invasive sample collection procedure.
  • Highly reliable findings verified through GC/MS or LC/MS confirmation techniques.

Limitations of Hair Drug & Alcohol Testing

  • Unable to detect recent consumption (5-7 days post-use).
  • More costly option compared to urine or oral fluid assessments.
  • Body hair cannot pinpoint an exact usage timeline.
  • Substance integration may differ based on hair type and growth speed.
  • Not applicable for DOT testing requirements.

Despite these constraints, hair testing remains steadfastly reliable for examining extended substance use and gains widespread utilization by employers, legal representatives, and individuals desiring dependable evidence.

Alcohol & Drug Testing-How Each Method Works

Accredited Drug Testing offers a comprehensive suite of alcohol and drugs testing solutions tailored to satisfy the demands of employers, DOT, legal bodies, and private individuals. An informed understanding of each examination technique aids in precise selections, guarantees trustworthy outcomes, and ensures adherence to both federal and Riverhead, NY's state mandates. Our expansive network, along with credentialed labs congregated with expert Medical Review Officers, provides the accuracy, faith, and professionalism indispensable for consistent testing results.

Alcohol Urine Drug Test

An alcohol urine test recently consumes alcohol by identifying ethanol metabolites present in urine content. This strategy thrives under workplace testing conditions, post-accident scenarios, and judicial prerequisites. Despite the lack of impairment measurement, it fortunately captures a concise detection period, rendering it practical and economic for such interpretations.

ETG Alcohol Test (Urine)

The EtG (Ethyl Glucuronide) urine test epitomizes a methodical sensitivity level adept at identifying alcohol consumption extending to 80 hours post-intake. Recognized as a direct byproduct of ethanol metabolization, its widespread application amongst courts, rehabilitation units, and regulatory chesspieces speaks volumes to its remarkable detection span relative to conventional urine alcohol assays. Renowned for its dependability and pinpoint accuracy, this approach garners well-deserved endorsement.

Breath Alcohol Test

A breath alcohol test quantifies existing impairment by measuring alcohol concentrations, particularly through the examination of deep lung air. Conducted with DOT-approved breath alcohol devices (EBTs), this method presents immediate and court-ready results. Essential for DOT-affiliated employees, breath scrutiny is commonly performed in workplace contexts, post-incident evaluations, and instances of rational suspicion.

Blood Alcohol Test

Through directly measuring the ethanol concentration coursing through one's bloodstream, a blood alcohol test resides at the zenith for determining current impairment. Hospitals, law enforcement realms, and authoritative legal partners prominently depend on blood alcohol evaluations for their unrivaled diligence, notably amid DUI undertakings, emergency response scenarios, and consequential investigative mandates.

PEth Alcohol Blood Test

By detecting alcohol-specific biomarkers entrapped within erythrocytes, a PEth (Phosphatidylethanol) blood test excels at identifying chronic or heavy alcohol usage. peaking the detection period to 2-3 weeks, this method enjoys recognition as a robust indicator for extended drinking conduct. Habitually utilized in family law practices, monitoring efforts, therapeutic establishments, and pre-employment screenings in industries defined by safety sensitivity.

ETG Alcohol Test (Hair)

The EtG hair alcohol test bestows a 90-day detection window by inspecting alcohol metabolites preserved within one's hair structure. More so than singular episodes of intake, it comprehends habits of repetitive or ongoing alcohol engagement. Courts, child custody matters, and long-haul monitoring agendas trust this assay due to its reliability, longevity, and resistance to temporary abstinence attempts.

Guided by experienced advisors, certified laboratories, and swift scheduling options, Accredited Drug Testing promises that each alcohol screening technique yields clear, legally robust, and regulation-aligned results, empowering clients and corporations to remain alert, safeguarded, and entirely compliant.


Accredited Drug Testing provides nationwide drug and alcohol screening solutions, including urine, hair, EtG, PEth, and breath alcohol testing. Backed by SAMHSA-certified laboratories, DOT 49 CFR Part 40 compliance, and scientifically validated testing technology, our services ensure accurate, defensible, and confidential results for employers, courts, and individuals.

Frequently Asked Questions

Urine tests detect recent use and are the only option approved for DOT testing under 49 CFR Part 40. Hair tests provide a 90-day detection window per the Society of Hair Testing (SoHT). Alcohol testing options, EtG, breath, blood, or PEth. These tests can identify recent use, impairment, or long-term drinking behavior depending on the method.

Urine: 24 - 48 hrs for negatives (SAMHSA guidelines).
Hair: 2 - 5 business days due to multi-step forensic processing (SoHT).
Breath Alcohol: Immediate results using NHTSA-approved EBT devices.
PEth: 3 - 5 days based on forensic toxicology studies.

Lab confirmation using GC/MS or LC/MS is the gold standard per SAMHSA & DOT.
Hair testing is highly tamper-resistant (SoHT).
PEth is considered the most reliable marker of repeated drinking (Journal of Analytical Toxicology).

No. DOT-regulated urine tests require validity checks and chain-of-custody documentation (49 CFR Part 40). Hair tests undergo decontamination and metabolite extraction (SoHT), making them extremely difficult to adulterate.

EtG urine detects alcohol for up to 80 hours (NIH/SAMHSA studies). EtG hair detects chronic alcohol consumption for up to 90 days (SoHT alcohol guidelines).

5 Panel DOT:49 CFR Part 40. Expanded non-DOT panels add benzodiazepines, barbiturates, methadone, oxycodone, MDMA, fentanyl, and more (SAMHSA forensic panel standards).

PEth blood testing identifies long-term and heavy alcohol use for 2 - 4 weeks. Used in child custody, treatment monitoring, and professional compliance programs (CDC & Journal of Analytical Toxicology).

Hair testing does not detect drug use within the past 5 - 7 days. It identifies long-term or repetitive use patterns per SoHT standards.

Yes. Results follow strict chain-of-custody procedures, DOT/SAMHSA requirements, GC/MS or LC/MS confirmation, and MRO review; making them acceptable in court, DOT, and legal settings.

Yes. Accredited Drug Testing offers same-day appointments at 20,000+ locations nationwide, instant testing options, and onsite employer testing with bulk discounts.

Customer Reviews

A very nice company

A very nice company of expertise. The staff will go above to help you out of your situation in a timely matter 👏

Tam Jack - 2/19/2025

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

Had very fast and good service

Had very fast and good service, was able to get an appointment same day with the nearest facility. My questions were answered thoroughly but quick. Definitely recommend

Jacob Matzke - 11/19/2024

Reception is kind and helpful

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

Yusuf Narmuradov - 11/19/2024

Unbelievably fast and Easy

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

Ren Wisby - 4/19/2025


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(800) 221-4291