Schedule Your Test ONE Testing accepts appointments Mondays – Fridays from 9:00 a.m. – 4:00 p.m. Saturdays walk-in appointments from 12:00 p.m – 4:00 p.m. ONE TestingM – F 9 am – 4 pmSaturday walk -in 12 – 4 pm7365 Carnelian Street Suite 112, Rancho Cucamonga, CA 91730Phone: (909) 360-8818 ONE Testing Services is a private business. Please check with your insurance provider about any reimbursement options. Payment for all testing services is due on the day of your appointment. We gladly accept Visa, MasterCard, Debit Cards and Cash. ONE STEP TOWARDS GETTING US BACK TO LIFE COVID-19 Test SiteDrug & Alcohol TestingFingerprintingDNA About Services Appointments Policies Contact | SCHEDULE APPOINTMENT | CONTACT7365 Carnelian Street Suite 112Rancho Cucamonga, CA 91730Phone: (909) 360-8818Hours: M-F 9:00 am – 2:30 pm