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    Quest Diagnostics

    2.4 (67 reviews)
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    6 months ago

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    1 year ago

    If you don't have an appointment plan on sitting and waiting 3+ hours. It is ridiculous

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    3 years ago

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    3 years ago

    Make an appointment... Wait times for walk-in's are long... Appointments are the way to go...

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    2 years ago

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    3 years ago

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    2 years ago

    On time service. Nancy is always very polite, professional and pain free! I travel from Lake Arrowhead for all my bloodwork.

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    4 years ago

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    2 years ago

    Terrible customer service. Make sure to have an appointment. Staff does not care for any walk in patients at all.

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    2 years ago

    2hrs wait and no one will try to help you. Worst customer service ever. No one to ask or talk to.

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    2 years ago

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    3 years ago

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    3 years ago

    Zero stars. Horrible service. Nurse was rude. Completely unprofessional and embarrassed by the nurse.

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    3 years ago

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    7 years ago

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    9 years ago

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    Page 1 of 2

    Ask the Community - Quest Diagnostics

    What hours is Quest open?

    Hi Carol- Thank you for reaching out. Our 2250 S. Main St Ste 105, Corona, CA 92882 location is set to be open Monday-Friday 6:30AM-3:30PM. You can find this and all other details for this location on our website at… Read more

    View All 2 Questions

    Review Highlights - Quest Diagnostics

    Nancy is always very polite, professional and pain free!

    Mentioned in 4 reviews

    Read more highlights

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    Norco Urgent Care Center - Sign in at Kiosk, Really.

    Norco Urgent Care Center

    (462 reviews)

    They are awesome!!! It took like 5mins in and out…read more Can you believe that???! All the staffs and the doctor are super nice!! Make sure you make an appointment online first and go there for faster process!! I'll definitely come back if I need the urgent care. Thanks everyone there!!

    Has to be in the top worst urgent care experiences so far. At 10am I made an online appointment for…read more1:45pm. I checked in for an appointment 10 minutes earlier and my estimated wait time was 27-42 minutes even though I had an appointment. They send you a text message before your assigned appointment explains that if you are 10 minutes late your appointment will be canceled. But when you arrive they want your payment upfront. Should waive payment if they are over 10 minutes from your assigned appointment. However, their monitor is very inaccurate and misleading as it informs you in real-time what approximate wait time is. The problem is that is was way off. I was not called into the office until 1 hour and 18 minutes. Then it took another 19 minutes for the physician to see me in the exam room. Dr was friendly and I diagnosed and exited the room after 2 minutes after being seen. A couple observations were made from this experience. 1. You are better off getting a better wait time but reporting in person and returning. 2. Just go to ER. I did not see the benefit for making an online appointment. Total waste of time! This is so sad because the VA contracts with this establishment and after this experience I am writing to the VA to inform that they should not renew and future contracts if this is how they treat veterans! I literally could have waited less by driving to the VA hospital ER and getting a better treatment.

    Quest Diagnostics - laboratorytesting - Updated May 2026

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