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Find TB testing in Ontario, CA

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15 instant-book locations

4.12(482 reviews)
Lab testing
I came in one day without an appoint and waited two hours as a walk-in before I had to leave without being tested. I made an appointment through Labcorp for the next day, showed up on time, got tested easily and was on my way in 15-20 minutes. Staff is friendly and helpful.
4.3(418 reviews)
Lab testing
I came in one day without an appoint and waited two hours as a walk-in before I had to leave without being tested. I made an appointment through Labcorp for the next day, showed up on time, got tested easily and was on my way in 15-20 minutes. Staff is friendly and helpful.
4.51(520 reviews)
Lab testing
I thought it was extremely easy to book a lab test appointment with Labcorp. Getting the test done was simple and so was the getting the results! Great job putting together something so user friendly.
4.42(486 reviews)
Lab testing
I came in one day without an appoint and waited two hours as a walk-in before I had to leave without being tested. I made an appointment through Quest Lab Testing for the next day, showed up on time, got tested easily and was on my way in 15-20 minutes. Staff is friendly and helpful.
4.44(403 reviews)
Lab testing
After receiving my results, I called Labcorp and discussed the results with a consultation. This consultation filled in my knowledge gaps and made me more aware of my particular situation.
Urgent care
Lab testing
Urgent care
Lab testing
4.37(400 reviews)
Lab testing
I would 100% recommend this company to anyone wanting to check their health status. The process was incredibly easy and done through certified labs. The results are frequently back by the next day.
4.16(486 reviews)
Lab testing
I came in one day without an appoint and waited two hours as a walk-in before I had to leave without being tested. I made an appointment through Labcorp for the next day, showed up on time, got tested easily and was on my way in 15-20 minutes. Staff is friendly and helpful.
4.51(479 reviews)
Lab testing
A great experience for something I had a lot of anxiety about. Had no wait time or issues at the testing center/lab. Had blood drawn at 3pm and had results by email at 9am the next morning.
4.88(8 reviews)
This clinic has shorter than average waiting periods

Short Wait Time

Urgent care
Lab testing
The staff is extremely nice & informative.
Urgent care
Lab testing
Urgent care
Lab testing
4.25(523 reviews)
Lab testing
After receiving my results, I called Quest Lab Testing and discussed the results with a consultation. This consultation filled in my knowledge gaps and made me more aware of my particular situation.
4.54(576 reviews)
Lab testing
I came in one day without an appoint and waited two hours as a walk-in before I had to leave without being tested. I made an appointment through Labcorp for the next day, showed up on time, got tested easily and was on my way in 15-20 minutes. Staff is friendly and helpful.
4.26(510 reviews)
Lab testing
I was able to choose a Quest lab location and schedule an appointment. Check in was easy, and I only needed to provide my name and DOB. They were able to locate my order in their system. They were already aware that my labs were paid for prior to the appointment. I had my labs done on a Wednesday, and I received my results by Saturday. Great experience.
4.48(482 reviews)
Lab testing
I highly recommend for anyone thinking of getting tested. From start to finish the whole process was hassle free and and very professional. I had my results very quickly and discreetly couldn't be happier with the service.
4.38(499 reviews)
Lab testing
I thought it was extremely easy to book a lab test appointment with Quest. Getting the test done was simple and so was the getting the results! Great job putting together something so user friendly.
4.35(475 reviews)
Lab testing
I thought it was extremely easy to book a lab test appointment with Labcorp. Getting the test done was simple and so was the getting the results! Great job putting together something so user friendly.
4.2(483 reviews)
Lab testing
A great experience for something I had a lot of anxiety about. Had no wait time or issues at the testing center/lab. Had blood drawn at 3pm and had results by email at 9am the next morning.
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