Drug Testing in Riverside, CA
Need a drug test in Riverside - for a job, a court, or a custody agreement? Order a lab drug panel online and walk into one of 11 approved Quest drug-collection centers in the area. Your specimen goes to a certified laboratory for a full screen with confirmation testing, and results are usually ready in 1-2 business days, posted privately to your online account. No appointment and no insurance needed - just check the center's drug-screening hours before you go. Serving Riverside since 2008. Inland Empire logistics hires by the thousand, and every DC badge wants a screen first. Don't lose a start class to slow paperwork: order a lab drug panel online, stop at a center on Magnolia with your pass and photo ID, and the laboratory posts your result usually in 1–2 business days.
🔒 100% confidential
⚡ Walk in today - no appointment needed
💵 All-in pricing - no fees at checkout, ever
📄 Results usually in 1-2 business days
Not sure which test you need? Talk to a Care Advisor - no pressure, just answers. Since 2008.
(866) 873-0879
Have your ZIP code ready - we'll find your nearest test center and the right test while you're on the phone.
Quest Diagnostics Riverside 9041 Magno
Nearest to you
9041 Magnolia Ave, Ste 205, Riverside, CA 92503
M-F 9:00 am-11:30 am & 1:00 pm-3:00 pm; TSPOT: M-F 7:30 am-5:00 pm
Test centers don't accept payment - you pay securely here; the center just does the draw.
Over 4,500 testing centers nationwide · 48 states, including New York
Drug-screening centers near Riverside
Drug-screening hours often end earlier than a center's general hours - check before you go, and go early.
Quest Diagnostics Riverside 9041 Magno
9041 Magnolia Ave, Ste 205, Riverside, CA 92503
🕐 M-F 9:00 am-11:30 am & 1:00 pm-3:00 pm; TSPOT: M-F 7:30 am-5:00 pm
Directions →
Quest Diagnostics Riverside Canyon Spr
2711 Canyon Springs Pkwy, Ste 101, Riverside, CA 92507
🕐 M-F 7:30 am-3:30 pm; TSPOT: M-F 8:00 am-3:30 pm
Directions →
Quest Diagnostics Corona W 6th St (308
308 W 6Th St, Suite 201, Corona, CA 92882
🕐 M-F 8:00 am-3:30 pm; TSPOT: M-F 7:00 am-12:00 pm
Directions →
Quest Diagnostics Eastvale Orbis
6102 Orbis Way, Ste 510, Eastvale, CA 92880
🕐 M-F 9:00 am-11:30 am & 1:00 pm-3:00 pm
Directions →
Test centers don't accept payment - you pay securely here; the center just does the collection.
Getting tested in Riverside
Magnolia corridor centers have free lots and morning-weighted drug-screening hours — verify yours, collect early, and be on the 91 with the screen behind you.
Questions people in Riverside ask us
Every one of these gets asked on the phone daily. No judgment, just answers.
What do I bring to my drug test?
Two things: your test pass (on your phone is fine, printed works too) and a valid government photo ID - driver's license, state ID, or passport. Drug screens check both. Go within your pass's time window, and inside the center's drug-screening hours.
How fast do I get my result?
Lab drug panels post to your secure online account, usually in 1-2 business days. Every non-negative screen is confirmed by the laboratory before anything is reported - the report you receive is the finished, confirmed answer.
My employer needs the result - how do they get it?
From you. The report posts to your private account; you download the PDF and share it with the employer yourself. You stay in the chain and see exactly what they see.
Will this work for court, custody, or probation?
That's what lab panels are for - a full laboratory screen with confirmation testing, the standard courts expect. Match the panel count your paperwork names (9 or 10; every substance is listed on the product page), and if the order's wording is unclear, call us and a Care Advisor will match it with you.
What if I can't get there within my pass's window?
Call us at (866) 873-0879 and we'll issue a fresh one. Life happens - the test still gets done.
Warehouse start class is Thursday — test when?
Monday or Tuesday morning: results usually take 1–2 business days, and testing early in the week puts the report in hand before class with margin. Order tonight; the collection itself takes about five minutes.
