DOTDOC is a testing and Occupational Health clinic serving drivers, employers, and individuals in the greater Chicago area.

We focus on providing efficient, reliable testing so drivers can stay compliant, employers can meet workplace requirements, and individuals can access trusted testing services when they need them.

Who We Are

DOTDOC provides fast, reliable, and affordable testing and health services to businesses and individuals across Chicagoland, backed by certified professionals and a nationwide network.

At DOTDOC, we make compliance, testing, and workplace health simple. Based in Forest Park, IL and supported by a nationwide network, we provide comprehensive DOT services for businesses—including drug and alcohol testing, compliance support, respirator fit testing, and medical surveillance—to help employers maintain safe, compliant workplaces.

For individuals, we offer fast, stress-free DOT physicals, DNA testing, return-to-duty testing, and general lab services. Whether you’re renewing a medical card, establishing paternity, completing an SAP process, or checking your health, our team ensures accurate results without the wait.

With a focus on efficiency, reliability, and affordability, DOTDOC is proud to be your trusted partner for testing solutions that keep people healthy and workplaces safe.

Who We Serve

Employers & Businesses

Companies that require workplace testing programs, including drug testing, respirator fit testing, and occupational health services.

Construction, Manufacturing, and Healthcare Employers

On-site testing is ideal for construction companies, manufacturing employers, healthcare facilities, and other workplaces requiring employee testing programs.

Individuals

Drivers needing DOT physical exams, drug testing, or return-to-duty testing, as well as individuals seeking reliable DNA testing, laboratory testing, and other personal testing services.

Why Choose Us

Convenient Location & Hours

Located right off I-290, less than 10 miles from Chicago, with easy access and ample parking. Available evenings and weekends.

Trusted & Reliable

We’ve performed thousands of tests and exams and can guide you through any testing situation with confidence and care.

Certified & Accredited Labs

All tests are processed by accredited laboratories, including AABB and SAMHSA-certified labs, ensuring highly accurate and reliable results.

Qualified Professionals

Our staff includes FMCSA Certified Medical Examiners, Certified DOT Urine Specimen Collectors, Certified Breath Alcohol Technicians, and professionals trained in NIOSH-approved spirometry.

On-Site Testing

We offer on-site services including drug testing, respirator fit testing, and workplace screenings, helping minimize downtime and streamline compliance.

Clear, Upfront Pricing

Know exactly what you’re paying before your test, with no hidden fees.

Professional Affiliations & Certifications

DOTDOC maintains active professional affiliations and certifications supporting transportation safety and workplace health.

• Member, Forest Park Chamber of Commerce
• Member, Oak Park River Forest Chamber of Commerce
• Listed provider on the FMCSA National Registry of Certified Medical Examiners
• Authorized provider for FAA BasicMed examinations

These affiliations reflect our commitment to maintaining professional standards and supporting the communities we serve.

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