OmniLab Diagnostics provides fast, reliable Drug Testing and DOT compliance services for individuals, employers, and transportation companies. Based in Riverside, California (CA), we offer both in-lab testing and mobile/on-site specimen collections. - By Appointment Only – All services are scheduled in advance for your convenience and privacy. - Extended Hours Available – We provide flexible before- and after-hours testing to accommodate your schedule. Our certified team conducts urine, hair, saliva, and alcohol screenings with strict chain-of-custody procedures to ensure accurate results. We also provide DNA testing, employment background checks, and more. Serving Riverside County, CA, and surrounding areas, OmniLab Diagnostics is your trusted community partner for workplace safety, compliance, and affordable testing solutions.

Website: omnilabdiagnostics.com

Phone: (951) 425-2130

Cross Streets: Near the intersection of Flat Rock Rd and Flat Rock Dr/Riverwalk Pkwy