Why Choose Our Partner Clinics
How to Get Walk In Clinic in Ontario
Order Online
Select your test and choose Ontario location
Visit Clinic
Go to the lab at your convenience - walk-ins welcome
Quick Test
10-15 minute appointment, no wait times
Get Results
Secure online results in 1-3 business days
Testing Locations in Ontario
Labcorp
1310 San Bernardino Rd STE 107, Upland, CA 91786, USA, Ontario, CA
(909) 981-8888
Labcorp
12555 Central Ave Ste A, Chino, CA 91710, USA, Ontario, CA
(909) 628-2720
Labcorp
10801 Foothill Blvd STE 104, Rancho Cucamonga, CA 91730, USA, Ontario, CA
(909) 481-1985
Labcorp
400 N Mountain Ave # 109, Upland, CA 91786, USA, Ontario, CA
(909) 741-3217
Labcorp at Walgreens
12574 Limonite Ave, Eastvale, CA 91752, USA, Ontario, CA
(951) 880-0562
Quest Diagnostics
573 N Mountain Ave, Upland, CA 91786, USA, Ontario, CA
(909) 981-5941
Frequently Asked Questions
What can a walk-in clinic treat?
Walk-in clinics treat minor illnesses like colds, flu, infections, and minor injuries like cuts, sprains, and minor fractures.
How long is the wait at a walk-in clinic?
Wait times vary but are typically shorter than emergency rooms. Many patients are seen within 15-30 minutes.