What are your business hours and how quickly will you respond?

Our customer service is typically available Monday–Friday 8:00–18:00 (local). Email inquiries are usually answered within 1 business day; phone support is available during business hours for faster assistance.

How can I schedule a DOT physical, drug test, or RTD appointment?

Use the online scheduling flow on the service page, or call 980-655-4455. If you need an observed RTD or urgent testing (post-accident), let the agent know so we can prioritize an appointment.

How do I get billing or invoice support?

Email billing or invoice requests to customerservice@gomdnow.com and include your order number or company name. For fleet invoicing, ask to speak with our billing team to set up account billing and Net terms.

How do I report a privacy or HIPAA concern?

Report suspected privacy or HIPAA issues to customerservice@gomdnow.com or call 980-655-4455 and request the Privacy Officer. We will acknowledge receipt and investigate according to our privacy policy.

Do you offer on-site or mobile collections for fleets?

Yes — mobile and on-site collections are available for fleet or large-group testing. Contact sales to discuss logistics, availability, and pricing.

Can I update my email or phone number on file?

Yes. Email customerservice@gomdnow.com with your account details and the new contact info. We'll verify identity and update records to ensure you receive notifications and results.

What information should I include in a support request to get help faster?

Include your full name, DOB, order or driver ID (if available), a brief description of the issue, and preferred contact method. For billing, include invoice/order numbers; for privacy requests, include identity verification details as requested.

Nationwide DOT & Non-DOT testing: Trucking, construction, healthcare, manufacturing, logistics & more · Call 980-655-4455, 980-246-9449

Contact goMDnow

Talk to a drug testing & compliance specialist.

Need help with DOT consortium enrollment, Return-to-Duty, follow-up testing, drug test orders, or employer workplace testing programs? Contact goMDnow for nationwide support.

25,000+ collection sites DOT & Non-DOT testing Owner operators, fleets & employers

Speak with our team

Questions? We’re here to help you get compliant fast.

Main line

980-655-4455

Alternate

980-246-9449

Email us

customerservice@gomdnow.com

Online ordering available 24 / 7

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Use this form for general questions, quotes, employer programs, account support, and service requests.

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What can we help with?

DOT Consortium EnrollmentOwner-operators, trucking companies, and employers needing random testing support.

Return-to-Duty SupportStep 5 RTD tests, Step 6 follow-up testing, and Clearinghouse questions.

Drug & Alcohol TestingUrine, hair, breath alcohol, pre-employment, random, post-accident, and reasonable suspicion testing.

Employer ProgramsWorkplace testing programs for construction, healthcare, manufacturing, logistics, and other safety-sensitive employers.

Need discounted testing rates?
Active consortium members receive lower member pricing on commonly ordered tests, including urine drug testing, breath alcohol testing, and eligible hair testing panels.

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