Contact Us
We’re Here to Help.
Your Partner in Drug Testing, Compliance, and Workforce Health.
Have a question or need to schedule testing? Our team is ready to assist you—reach out and we’ll point you in the right direction.
- Fast Response Times
- Confidential & Secure
- Experienced Team
- Committed to Your Success
Get in Touch
We’re Here to Answer Your Questions
Reach out for the support you need. Calling is the fastest way to schedule testing or get pricing.
Phone
(951) 425-2130Fax
(951) 633-1163
Location
Riverside, CA
By Appointment Only
Hours
By Appointment Only
Confidential & Secure
Your information is always kept confidential and handled with care. Please call for more information about our privacy practices.
Send Us a Message
Book an Appointment or Ask a Question
Fill out the form below and a member of our team will get back to you as soon as possible.
OmniLab Diagnostics is by appointment only. The map shows our general service region. Your exact appointment location is confirmed when you schedule—please call for more information.
Areas We Serve
Proudly Serving the Inland Empire & Beyond
We support businesses, schools, and organizations across Southern California, with nationwide coordination available.
- Riverside County
- Orange County
- Inland Empire
- Surrounding Southern California areas
- Nationwide via partner network
Need service outside our area?
We offer nationwide coordination through our trusted partner network. Please call for more information.
Ready to Get Started?
Schedule an appointment or get a customized testing solution for your needs.

