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    Quest Diagnostics

    2.7 (113 reviews)
    Closed Closed

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    The short staff incident and sometimes from the next door neighbors, they did indicate that if they're not there by 7, just go home.
    Garman C.

    There was no warning that the office is closed due to the short staff from the online web. No communication whatsoever. It had also said that it would open the next day at normal hours. Showed up at 7AM sharp and left at 7:30 with no one there still even though it had said opening time was 7AM. The lack of communication is frustrating.

    Danny N.

    I usually visit a different Quest location, but I couldn't get an appointment. I tried this location in San Carlos. I was very pleased with the facility and technician. There's plenty of parking on the street and in their lot. I had an appointment so I did t have to wait long at all. I like their checkin process and it's pretty easy to do online or at the machine when you arrive. The technician that took my blood was very nice and well trained.

    I had an appointment and when I got there they were closed. I was never notified that they closed. The blood test I was having done required fasting. 22 hours later I was starving and rather upset.

    Long waits at 11:30am on a Friday. Behind is also a waiting room full of people.

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    Carolina and Hélen are great! They were super comforting and made my experience much better.

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    Page 1 of 3

    Ask the Community - Quest Diagnostics

    Review Highlights - Quest Diagnostics

    I just came back from having my blood drawn and I have to say that this facility is really nice and clean.

    Mentioned in 15 reviews

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    3.3(96 reviews)
    6.1 mi

    Chelsy was absolutely amazing from the moment I walked in she was welcoming professional and…read moreextremely efficient she made the entire process completely painless and comfortable the office environment was very clean organized and well managed I really appreciate her great attitude and top notch care

    Your mileage (experience) may vary from mine but I found my visit to be somewhat problematic for…read moreblood sample extraction. The nurse / tech performing the blood draw had issues finding the vein. They had to use both arms. Even then, they use the needle on the extraction device to probe in, out, and around in each arm multiple times. 7 times in the right arm. 4 times in the left arm. With success only in the left arm. The blood draw experience at this site, with that person is different from almost every other experience in a clinic, hospital, or blood donation site. With other nurses / techs being able to easily find the vein. Historically, I have given blood test samples in over 60 various office visits, and blood donations of 19 pints over my life. So I have more than a few experiences to compare LabCord San Mateo against. Outside of the blood draw, the staff at the San Mateo location was both pleasant and professional to deal with. The front office and draw rooms were both neat and clean. With the site location signage easy to see and understand. The office location itself was easy to find. With plenty of parking available. If I use LabCorp San Mateo again then I will likely ask for a different nurse / tech to perform the blood draw. Otherwise I give LabCorp San Mateo a "Definite Maybe" for my recommendation. Maybe that will change in the future.

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    Kaiser Permanente Lab - Correct hrs as of 03.11.23  |  screenshot for KP app

    Kaiser Permanente Lab

    2.0(6 reviews)
    1.9 mi

    3.5 stars. Hmm, my Fri early evening experience was efficient @ 5:50p. Clean, newish facility, but…read morequiet af w/ other services long closed. I guess it could be a lil scary, esp coming up from the underground parking lot, but I wasn't alone. With that said, appreciate the late hrs. I tried to check for appts in app beforehand, but it seemed like no same day availability later than ~3:20p. Dropped by to check since we were already nearby. No clerk at the window, but the ticket generator spit out #s when prompted. I proceeded to peek inside. Then heard faint computer voices to approach certain windows. The female tech had trouble finding a vein & poked around my arm for quite a bit, which wasn't pleasant. The male tech didn't know how to print a copy of the requested labs for my fam like she had offered to me. Inaccurate hrs on here. I'll submit an edit. FYI in case Yelp doesn't get around to approving it: M-F 7a-7:30p & wknds 7:30a-4p (esp helpful compared to SM, which is M-F 7:30a-7p & closed wknds)

    The operator named Rosa who answered around 4:45pm today, who sounds like a 50 yr southeastern…read moreasian lady, was very rude, condescending, and would NOT look up more than 2 clinics to check availability for my schedule saying "Company policy"?! Like what. I have had numerous operators in the past look up 5 to find the best time to schedule an appt. Absolutely ridicoulous. She also told me NONE of the clinics take in walk-ins for injection? Which I know is not true since I did a walk one last time.

    Quest Diagnostics

    Quest Diagnostics

    2.9(55 reviews)
    4.8 mi

    I did a walk-in on a Saturday and was 3rd in line, so I ended up waiting about an hour--but it was…read moreabsolutely worth it. Rose was incredibly kind and professional throughout the whole process. I tend to bruise easily, so I asked if she could use a butterfly needle, and she was very accommodating. Even though she had to draw around 10 tubes of blood, she was patient, gentle, and made the entire experience go smoothly. I'm really glad I chose this location today. Thank you so much, Rose!

    I did a walk-in today , August 7th at 12noon and waited for 3 hours just to find out they will not…read morebe able to see me. The 2 lab workers were just slow and non communicative to walk-ins . I understand scheduled patients are prioritized over walk-ins but simply there was no effort made what so ever to acknowledge the walk-ins in between to squeeze them in . It was simply and ignorance and lack of training . Things were maybe not in their control and they were overwhelmed by appointments, however some communication and acknowledgement should have been exchanged with patients waiting for hours in the waiting room. I think it was simply an ignorance. A patient before me also waiting for 3 hours finally raised her frustrations, then it only initiated a response by a lab tech to call her in.?? What about the rest of us that was waiting as walk-ins. ?? Also, walk-ins opportunity and options should not be an option if appointments were fully booked . There should be a better way to handle walk-ins then to have them wait and not be acknowledged at all. This is just simply being rude !!

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    Quest Diagnostics - laboratorytesting - Updated August 2026

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