Quest Diagnostics

Foster City, United States

2.9

Closed now

20 reviews

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Telephone:
+1 650-212-7426
Website:
secure.questdiagnostics.com
Address:
1098 Foster City Blvd Ste 102, Foster City, CA, 94404
Nearby public transportation stops & stations:
2.5 miBelmont
2.5 miHillsdale Caltrain Station
3.1 miSan Carlos
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Bussiness info

By Appointment Only
No
Accepts Insurance
Yes

Today

Today 7:00 am – 12:00 pm
1:00 pm – 4:00 pm
Closed now
Local time (Foster City) 04:10 Wednesday, 9 July 2025

Business hours

Monday 7:00 am – 12:00 pm
1:00 pm – 4:00 pm
Tuesday 7:00 am – 12:00 pm
1:00 pm – 4:00 pm
Wednesday 7:00 am – 12:00 pm
1:00 pm – 4:00 pm
Thursday 7:00 am – 12:00 pm
1:00 pm – 4:00 pm
Friday 7:00 am – 12:00 pm
1:00 pm – 4:00 pm
Saturday 8:00 am – 12:00 pm
Sunday –

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20 reviews of Quest Diagnostics

No registration required
Place rating: 4
Menlo Park, CA
I’ve been going to this lab for a few years and have never had to wait more than 5 minutes or had a problem with any of the staff. In fact, the staff has always been professional, friendly and very helpful. When my doctors handwriting was illegible they called the doctors office to verify the tests, which took several minutes after they placed her on hold. Very helpful.
They’re also great at drawing blood. I’ve never experienced any pain or black and blue marks in the days after. One stick, so fast, and you’re done!
Place rating: 3
San Mateo, CA
Didn’t have to wait long, as I was one of the first walk-​ins in the morning on Saturday. The place is somewhat hidden, but clean and quiet.
Unfortunately the staff are brisk and not particularly courteous, adding snarky comments about patients’ and doctors’ handwriting. They also don’t seem particularly concerned about patient privacy. Not that I necessarily need much privacy when giving blood samples, but it wouldn’t have been very difficult to just close the door to the waiting room.
At this visit there were two women staffing the lab, so must have gotten better compared to what previous commenters report.
Place rating: 1
Newark, CA
Service is very bad. They closed earlier than 12pm on Saturday when we were trying to drop off a lab specimen for a patient.
Place rating: 1
Burlingame, CA
Horrible! Spent months (yes months) trying to get my records after I switched OBGYN. Service was bad!
Place rating: 1
Redwood City, CA
Waited 1−½ hours! There is only ONE person staffing the entire facility. Quest needs to hire more people!
Place rating: 5
CA, CA
Its a lab. Just a boring lab. For me they draw blood regularly. Lots of forms in triplicate they must produce for each patient and vial. The queue moves slow because of that. Once all that is done Its over quick.
If you are in a rush make a reservation. You skip the queue, but they still have to churn out your forms.
Its pain free needle wise and the people are nice.
Place rating: 1
San Mateo, CA
The phlebotomist was extremely rude to begin with. She was looking for something on the computer and I asked what she was looking for so I can help. She said «oh am looking for the doctor s information. You have been here before, you know i need the doctor’s information, right?» This can be excused if she was competent. She couldn’t find a vein and was extremely frustrated and huffing and puffing. She then told me «you don’t have veins, u know that right?» I was infuriated. That’s stupid and completely unprofessional. She tried in both my arms, then poked the back of my palm, didnt get any blood. Then poked me in my arm, didnt get any blood. I may have been dehydrated, so I understand the difficulty in collecting enough sample to do the tests. But If there is no blood, not a single drop in the test tube, I am sure it’s not my dehydration, but sheer incompetence of the phlebotomist. Quest needs to invest in better training. These lab technicians are extremely incompetent and potentially dangerous. I am never going to Foster city Quest ever again.
Place rating: 3
San Mateo, CA
I would give 4 stars but due to the flaws, it’s 3.
First of all, I arrive around 8:05, there were only 2 patients ahead of me. There was only one tech on duty so I had to wait between 20 to 30 minutes. Other than that, the tech was friendly and took care of me in a timely manner when it was my turn. One other patient came in and was advised it was going to be about half an hour and another patient that walked in was advised it would be for about 45 minutes. This location should have at least more than two people on duty, especially in the morning. Other than that, I had no other issues here. But after looking at the reviews for the San Mateo location, I decided this would be a better attempt based on recent reviews on the staff. My visit was a walk-​in.
Place rating: 1
Half Moon Bay, CA
I’m sorry I had to put one star. This Quest location merits zero stars. I am the sort of person who doesn’t complain and I’m not high maintenance as a customer, so I hope this information will help others who may be wondering which reviews are most relevant. I arrived on a Saturday at 10:44 for a 10:45 Appointment for my niece. At the same time, I put my son on the list as a walk in. Even with an appointment, we waited 30 minutes for my niece to be called and then she waited in the back room for another 15 minutes before she was seen. My son waited for one hour and fifteen minutes before we were called, at closing time (12:00). There were two women working and they clearly needed a receptionist to manage the list of appointments and walk-​ins. They were clearly stressed and this did not instill a sense of confidence or professionalism in the facility. Shame on the owners for not providing enough staff support. I’m sure they are not well paid. Frankly, I have gotten better service in a 3rd world country. I will not return and will warn my friends away.
Place rating: 5
Belmont, CA
I did this as a walkin, which worked out great. Only a short wait. Very friendly and very competent staff. Nice clean facility. I was in and out for a regular lab test in 15 minutes.
I also had an appointment for later that day (just in case), or so I thought. They could not find it, so they researched it and tracked it down to a misunderstanding on how the web site scheduling works. Well, I would say this is not a very intuitive design, which is obviously not something the folks in the office can fix (and I will accept that I didn’t pay close enough attention). After entering all information and pressing «Continue», the next screen is «Appointment Review», unless one presses «Make Appointment» it’s not actually scheduled. Given that the content in the first screen is basically the same as in the review screen, and the buttons happened to be below the page fold on my browser, I ended up not making an appointment when I thought I had.
Place rating: 5
Burlingame, CA
I had a great experience today! After reading the Unilocal reviews I was nervous I’d have to wait forever especially b/​c I didn’t have an appt. I showed up at 9:00 when they open for Drug Screening. There wasn’t a soul in the office!!! Lacey took me within 2 minutes. She was funny, kind, efficient and FAST. I was out of the office by 9:15 and so happy I go this done. Thank you Lacey!
Place rating: 1
San Mateo, CA
horrible all around, the place is under staffed, bad service, they overcharge and are very rude and incompetent. The girl that works there needs to be replaced.
Place rating: 1
Vernon Hills, IL
Unless you show up as the first one at the door at 7:00 be prepared to wait at least half an hour. There is only one person attending the front desk and taking the samples. Super inefficient. Hire some more people!
Place rating: 5
San Mateo, CA
Glad I didn’t read the reviews before I scheduled an appointment. I had a wonderful experience with Quest Diagnostics in Foster City and kudos to Lacey for my positive experience.
I had gone in a few weeks earlier to ask a few questions concerning my upcoming lab appointment. I was warmly greeted by Lacey who answered all my questions with a cheerful disposition. I went in for my lab work this morning and was surprised to find her there again. Apparently she works the entire office by herself. The place is clean and Lacey has a wonderful disposition. She is friendly and efficient and gave great instructions. I was finished with my labs in about 10 minutes.
I am glad that Lacey was brought in before I made this appointment. I hope to see her there the next time I return.
Place rating: 5
San Francisco, CA
I was expecting the worst after reading all the one-​star reviews, but I got in and out in no time (and I was a walk-​in!) Evidently, they have hired some new people. Because Lacey was cheerful, personable, and efficient. Glad to know I don’t have to drive to San Mateo for labs…
Place rating: 3
Foster City, CA
PRO:
The wait isn’t as terrible as most are saying. I showed up at 9:45 as a walk in and was seen at 10:15.
Very clean and easy to find.
CON:
They are really disorganized. Lots of back and forth between the two techs about which test for what code, whether I had to fill out paperwork, if they were supposed to charge me etc. I had to drop off something at 7am the next day only to be told «Oops, you were also supposed to do another test. Sorry, the other guy is new.» This was told to me by the tech that gave me my kit in the first place. So I basically had to come back three times and had to wait two extra days to begin taking a medication I needed badly (AND already had) because they couldn’t get the tests straight.
A bit of a disappointment because I’ve always had positive experiences at other Quest offices.
Place rating: 5
South San Francisco, CA
Returned to Quest for another test. Margie remembered my name and our last conversation. Very Personable. Once again, painless!
Place rating: 1
Los Angeles, CA
Don’t go. Only one person working the desk who also is the one who attends to all the patients so all in all only one person running the whole operation. There is no point making an appointment because the worker was so far behind, appointments get pushed back an hour or an hour and a half. Extremely long wait.
Place rating: 5
San Mateo, CA
Monday — Friday: 7 AM — 11:45 AM, 12:45 PM — 4 PM
Saturday: 8 AM — 12 PM
Closed for lunch from 11:45 AM — 12:45 PM
Dug Screen Hours: 9 AM — 11 AM, 1 PM — 3 PM (Monday through Friday only)
PROS:
–very clean
–minimal to zero wait time
–spacious parking lot (part of the 99 Ranch market plaza)
–quick and easy
CONS:
–I came on a weekday morning and there was only one employee (not really a con for me since there was no one else there but if there were a few people waiting, I’m not sure how long the wait would have been)
Place rating: 1
Foster City, CA
I decided to try this new location since its down the street from me and my friend told me she has always had a good experience at Quest. The office is nice, but there was only one technician who was also the receptionist. She was very friendly and welcoming.
My veins «pop» so they are very easy to locate. Usually, the technician takes 3 tubes in less than a few minutes. However, this technician easily found the vein, but had difficulty getting the blood out. Instead of trying a different spot, she repositioned the needle and massaged my vein to get the blood out… and it trickled out VERY SLOWLY. This took at least 10 minutes, and hurt the entire time. I even asked the lady… is it not coming out? She said it was, «it’s just slow» and kept asking if I was okay. When she was finally done, she took the needle out and blood started coming out.
An hour later, there was a huge bruise on my vein and the surrounding area. This has never happened to me before, and I’ve had blood drawn at least 3x just in the last 2 months. I’ll post a picture of my arm in the photos. This was my first and last time at this lab. I will be looking elsewhere for my next blood draw.