The lab has always been very good to me. Get there early and you won't have to wait. The…read morenegative comments below is baloney. They are wonderful. I've been there so many times and have always received good service

7/10/2026 8:40am . My husband went in for blood test. The male technician did the blood draw. It…read morewas the most painful experience my husband has ever had in Sutter Castro Valley lab. My husband told him that it was so painful. He simply said: "sorry ". No explanation as to why it's so painful.

Normally I'd never write a review for LabCorp, but years of dealing with their condescending…read moreemployees sent my temper boiling over this afternoon. In terms of speed of service, these guys have typically always been fine, in my experience. I've never made an appointment, have always been a walk-in, and am seen almost immediately. Very little wait time. No issue with cleanliness, either. The issue is, 100%, the disgruntled jerks they seem to exclusively hire. Whoever is behind the counter at any given time (usually an older white woman with glasses) is never, ever pleasant. Not even decent. Just these grumbling, unhappy people who foist their bad day -- which seems to be every day -- onto patients. And I get it -- just sitting in there this afternoon you had one guy who comes in, obliviously crashes right into the table next to the door, and doesn't move it back, and a patient who had to be told twice which room to go into. People don't listen and they have rotten attitudes. But unless they've demonstrated rudeness or stupidity, there's no reason to treat people poorly. So when I walked up this afternoon and saw a sign that read the following, I read it as, "this place is appointment-only except during a short period in the morning": "Effective 9/25 until further notice: Due to unforeseen event [typo on their part], San Leandro location will be appointment only with accepting walk-ins when time permits from 7:00-8:30 am." I'm an English major and a content marketer, meaning, I write for a living. Anyone with a basic grasp of English would likely read this as I stated above: appointment-only location except during this short window in the morning, if time permits. Well apparently their phlebotomist, the middle-aged Asian woman who always wears her hair in a ponytail, thinks their poor, typo-riddled writing is so sublime that confusion on my part was just me being either too lazy or stupid to read the whole sign. Because when I asked her if they're appointment-only, she snidely remarked that if I'd read the whole sign, I'd see that they're only appointment-only in the morning. Apparently, what they meant to write was that they're appointment-only from 7:00-8:30 am, with the ability to squeeze in walk-ins during that window only as time permits. Not hard to write unless you're more focused on making everyone around you as miserable as you. I was extremely close to reading the phlebotomist the riot act, but I don't need to get myself banned from a LabCorp so close to my house, which I need regularly. So I just made sure to give her back her attitude in spades the entire visit and wasn't nearly as nice to her as I usually am. She seemed to be picking up what I was putting down because she tried to be nicer in the end. Way too late to play that game with me.

Arrived before 9am. Express check in using kiosk, iID and insurance card. Short wait. Courteous…read morestaff. Efficient service. Swift results

This is by far the worst Quest Diagnostics location I have visited. I attempted to schedule an…read moreappointment but was informed they were fully booked for the next month. Since walk-ins were listed as an option, I arrived at 1:30 PM. The check-in kiosk indicated there was only one person ahead of me, which I did not mind. However, there was no staff available to assist with the check-in process. The check-in area consists of a very small, windowless room with no access to speak to an actual staff member. This made the process especially difficult for several patients--mostly older individuals--who were not familiar with the technology and were visibly confused. I found myself assisting them as if I were an employee. I waited until 3:30 PM with no update. At that point, a staff member finally came out and informed us that walk-ins are not accepted after 2:00 PM and that anyone there for a walk-in could leave. This policy was never posted or communicated, which resulted in a significant waste of time. I explained that I had arrived before 2:00 PM, but was told I could stay until 4:00 PM to see if someone did not show for their appointment--though it was "more than likely" I would not be seen. The interaction was rude and unprofessional. Clear signage, staff presence, and better communication could have prevented this situation entirely. If it were possible, I would give this location zero stars.

Their personal is so unprofessional and no one help you! The room is so small and they make you…read morewait for hours even if you have an appointment

My husband was referred here by his doctor. Located in Castro Valley by Lake Chabot Rd. Easy to…read morefind by the freeway. For some reason, there is plenty of parking but is always full. I would get here early for your appt for easy parking choices. This office is located in the Eden Medical Building. Close walking distance to Starbucks/Denica's for coffee, drinks and food if you are the one waiting. Got here on time but was delayed due to missing a front staff person. The procedure went fast and smoothly. Each person was like an assembly line once one was done, the next patient was taken care of. Once you get that shot through the IV, you're out in 10 mins. It took about an hour and half from when he got inside. You will be spoken to the doctor if there was a big issue to be said but he was able to leave with paperwork of what happens next. Friendly, funny and helpful staff. They are caring as well. I would recommend this place for a Colonoscopy procedure. [6R,2025]

Well, we were told to be here at 7 am. It's now 7:46 am and we are still sitting in the waiting…read morerooms. So far, I give them 1 star and only because

IF I could give a zero I would. First they made a mistake with my collection, mis inputted my info,…read moreand then tried to say it was my fault and my QPassport was expired (it wasn't). Completely wasted my time and then tried to gaslight me into thinking it was my fault. I then called the scheduling company, explained my situation and gave them my QPassport and they confirmed that it wasn't expired and they simply made a mistake on their end. LACK OF ACCOUNTABILITY AND PROFESSIONALISM.

it's an Asian guy with glasses that very unprofessional who held up the paper with my social…read moresecurity with people standing behind me and then went on to attempt to say my social out. I swear his type his so ignorant and rude in certain capacities . if you have options go elsewhere. this location is convenient and this is why they are rated at a 2.6 out of only 17!reviews.

Shasta laboratory isn't just an amazing testing laboratory. They help me find and fix the problems…read morein my product development

From the owner: Shasta Laboratory offers a one stop solution to full compliance and quality assurance testing on…read morenationwide hemp and California grown cannabis with our ISO/IEC 17025 and DCC C8-0000003-LIC regulatory licenses.

Armando Cervantes is such a terrible doctor. Didn't care at all about what was going on just…read morebecause I am overweight. I have conditions that make it hard to lose weight and I have a referral that is 5 months out. But im made to feel like crap because someone doesn't want to do their job and just blame things on the weight, that shouldn't make you any less valued as a patient or a person. This phone appointment made me instantly depressed this tactic needs to change.

EXCELLENT CARE. Engaging with the healthcare system can be scary, and I found the staff here to be…read moreas soothing, reassuring, and kind as they were professional and capable. Dr. Bhamra has been overseeing my wound care, and has saw to my care with a confidence-inspiring sense of expertise, as well as the eye of an artist. It's been literally. Years. Since I've left a review for anything, but I have, in the last few ongoing visits been VERY impressed with the level of care I'm getting here.

Do not come here. Had appointment at 11:15. They called me when I'm otw and told me to come at…read more11:30. Now I'm just sitting outside in my car waiting an extra 30 min !

I procrastinated on getting my TB test done but was able to secure an appointment here on a…read moreSaturday (07/05). The entire experience was smooth sailing. It's very easy to schedule an appointment online and I received my results in less than 2 days after having my test taken. I wish I could remember the name of the person who was working when I came in because she was the sweetest person ever. My TB test was done professionally, painlessly, and quickly. I would definitely come back in the future for other services and would recommend friends to come here for a convenient option. The location is kind of hard to find when you nav to it, and when you get there you will think the area is a bit sketch... but don't let that fool you, this place is great!

We used Mobile Med Services for a blood test for my mother. This service is super convenient, super…read morefast, and super friendly. We were able to schedule for a next day appointment and they made sure everything went as easy as possible. We saved hundreds on wheelchair transport and we highly recommend Mobile Med Service for anyone needing mobile service!

I had such a great experience Mobile Med!…read more Charity Manning, the owner, is a licensed phlebotomist and certified medical assistant who comes right to your home to do blood draws. This is an incredible service for anyone who is sick, homebound, or simply unable to get what they need done at a lab. In my case, the lab actually wouldn't do the bloodwork I needed to donate a kidney, so having someone come to me made the whole process possible. Charity was professional, very communicative, and incredibly gentle and kind during the draw. She made me feel at ease and took care of everything (she came to my house, drew my blood and even took my bloodwork to FedEx for dropoff) I plan on using her services in the future not only for myself, but also for my kids. Having someone trustworthy and skilled come to the house is such a relief! Highly recommended.

This location is very busy. It took me months to get an appointment. Then I had to wait more than…read more30 minutes even though I arrived early . I would try another location.

Posting again in regards to the awesome phlebotomists we've had. Yesterday we had Ram the float and…read morehe was so great with my daughter! My daughter is special needs diagnosed with autism and epilepsy. It is usually very difficult to withdraw blood (and even get a shot) and takes 3 or more people (her Dad and I holding her and another staff member) but the phlebotomists we've had (Talpa, Aaron & Ram the float) have been so patient, understanding and friendly with her. Both times she didn't cry, get out of the seat or pull out anything. The only thing negative is waiting but they do their best to get to each patient fast and efficiently while still helping people at the kiosk since there is no one at the front desk