Our story
D.D.W stands for
“Drugs Don't Work.”
Serving New York
since 2012
D.D.W Drug Testing Services, INC was established in 2012 in New York City by O. Michael Hollingsworth. What began as a neighborhood collection site has grown into a full testing operation with its own laboratory, a 24-hour mobile testing unit, and clients ranging from local employers and family courts to government agencies and the U.S. Coast Guard.
We test people, not just specimens. Individuals come to us for probation, court-ordered, custody and personal testing. Employers rely on us for pre-employment, random, reasonable-suspicion, post-accident, return-to-duty and follow-up programs. And with our new OSHA respirator fit testing service, we now keep entire safety-critical crews compliant — on site, in a single visit.
Helping to create a safe workplace environment — that is the work, seven days a week.
What sets DDW apart
Our own laboratory
Rapid instant results read on site, and lab-confirmed panels without third-party delays.
Harlem, born and based
214 Lenox Avenue, steps from 125th Street — open 7 AM to 7 PM, seven days a week since 2012.
Trusted by government
A registered federal contractor testing for private clients, government agencies and the U.S. Coast Guard.
Certified & qualified
Collectors qualified under 49 CFR Part 40, with chain-of-custody procedure on every collection.
Credentials &
registrations
DDW is a registered federal contractor. Agencies, primes and compliance officers can verify us directly.
- Unique Entity ID (UEI)
- PNQGGJH6KUK9
- CAGE Code
- 9XV23
- NAICS
- 541380 — Testing Laboratories
- DOT collections
- Qualified under 49 CFR Part 40
- Service area
- Harlem HQ · mobile across NY · NJ · CT · PA · MD · OH
Come see us in Harlem
214 Lenox Avenue, Floor 2, Suite 1 — open 7 AM to 7 PM every day of the week, by appointment. Call (929) 353-8231 to book and we will have everything ready when you arrive.