Amazing doctor, awesome staff. Very personable and empathetic. Takes time to understand the…read morepatients. My only complaint is the location being so far (worth the travel) and days they are open.

I decided to try this doctor being a DO after he saw my mom in the hospital and did an amazing job…read morein my opinion. I needed a new doctor since my Asthma/Allergy doctor left his practice. However, since seeing him in his office and the last two visits with PA Steiner, my opinion has completely changed on these guys. First off I'll say, I will never go back here and I don't recommend them. As pulmonary doctors, having asthma, a PFT test should be done, but that's not the biggest issue. I have a history of pneumonia in my right lung along with other issues. The last time I saw PA Steiner, I was extremely sick with pneumonia and other issues. He did absolutely nothing for me. Didn't offer any medications, no advice, nothing. I fortunately decided to go to pulmonary at the VA. She immediately ran a boat load of blood tests, ordered a CT Scan and a PFT initially which after that one a more advanced one. So this is why I'm not recommending these guys.... The blood work came back showing issues, the CT of my lungs came back showing issues, I'm waiting for the second PFT. These guys are Intensive and Pulmonary and did absolutely nothing for me or made any attempt to diagnose me. Beware if you have serious pulmonary issues. I should not have to request or demand for them to do their job. I'll stick with the VA as these guys did not want to do anything to help me or earn my business or recommendation.

Place is a joke. Don't waste your time here. The staff is rude and won't even call you or give you…read morea follow up.

He is absolutely Amazing! He personally came to waiting room and called me back. I thought he was…read morethe medical assistant. After my testing, he personally called me on a Sat to give me my results!! I wish he was my primary care doctor!!!

I have no complaints except they can run behind. Staff and doctors are pleasant. Dr Sayal and…read moreSamantha listen to what you have to say, they don't rush you out the door. I feel they are very knowledgeable.

I rarely leave negative reviews, but my experience with this doctor's office was extremely…read moredisappointing. I was referred here by my primary care doctor for a persistent cough. After providing my insurance information, they scheduled an appointment. When I arrived, I was seen by a nurse practitioner instead of a doctor. She asked basic questions but when I asked if she had reviewed my medical records, she said yes--then admitted she hadn't actually looked at them. That was my first red flag. She ordered two studies and suggested it might be asthma, then sent me on my way. When I went to schedule the tests, they gave me two separate appointments. I asked why everything couldn't be done in one visit, and I was told it was "for insurance purposes." It felt very misleading, and I later realized this likely meant they were trying to bill my insurance twice instead of once. That was enough for me to decide not to return. Fast forward to this week--I started receiving a bill for a "no-show fee." I had canceled the appointments when they called to confirm, yet I'm still being charged. Overall, the experience felt disorganized, unprofessional, and financially driven rather than patient-focused. I would not recommend this office.

My son also used to see him for urticaria and eczema. We saw a different allergist initially and we…read morehad disappointing experience both with that doctor's knowledge and skill, and the clinic. Thankfully I heard about Dr. McKnight ! My son saw him for about 2 years and then was completely healed and no longer has to follow up with him. We are very happy about that. I had chronic idiopathic urticaria when I used to live in LA but became well-controlled for years and then recurred in 2020. My son was still seeing Dr. McKnight then and so I also started seeing him then. My urticaria has definitely improved and are now well-controlled. Treatment plan was all medications (no shots were required). I was also found to have seasonal allergies and are also well-controlled with the treatment plan I am on. I am very happy with the medical care I have received and continue to receive. Everyone in the office - front desk and in the clinic- are all nice, friendly, patient and always with a good demeanor. I like the option that I am able to book my follow up appointment 6 months out and their calendar is available that far out. I also like that when the office sends the appointment reminder there is an option to check in online which I always do so that the office check in is quick. Clinic is clean. Parking availability is generally not an issue. I always refer Dr. McKnight to my friends who need allergy consult.

Dr. McKnight is AMAZING! I have suffered from allergies all my life, but I thought taking my Zyrtec…read morewas enough until COVID19 hit! I got bilateral pneumonia and chest tightness with reactive airway for months after. I had to see a pulmonologist for the first time, and he did some testing. He believed my allergies were not under control and they caused me to have COVID19 complications. As soon as I started feeling better, I made an appointment with Dr. McKnight. I wish I would've done it sooner! He is so thorough and smart. He had allergies as a child and had to get allergy shots (allergy immunotherapy) for years. Therefore, he's very understanding. He puts everything he suggests in writing for you to take home. It's been a long time since I've met a healthcare provider who provides such quality service. I teach at a local nursing school, so I like asking questions. I want to understand why a treatment is beneficial and all options. Dr. McKnight always answered my questions, provided all options, and allowed me to make an educated and informed decision. He also gave me the most detailed explanation of how I should begin to exercise again because after COVID19, I kept getting a tight chest with exercise. I monitor my heart rate now, thanks to Dr. McKnight. I loved Dr. McKnight's office so much, I brought two of my kids who suffer from allergies to see him, too. Below are two pictures of my kids getting allergy testing. (Yes, my son has a ton of allergies.) They didn't complain at all. We can't wait to get started on our allergy shots (allergy immunotherapy), so our family can get our allergies under control. The staff at the Henderson location are really nice. Dr. McKnight is the best physician for allergies, asthma, and immunology. Warning: he's so good, it may take you 3 months to get an appointment to see him, but he's worth it!

I still do not recommend seeing Dr. Nguyen!!!! They have other options…read more After leaving the Henderson office in tears yesterday, the office manager Lisa reached out to me today and was very amazing at talking to me about what happened yesterday. I expressed my gratitude for the quick scheduling and also the girls at the front desk. She offered for me to see a different doctor at their practice and was very confident I would not be disappointed. I am changing my review from 1 to 5 stars but only because the office handled this situation exceptionally. Still think the doctor experience was the worst I have ever had. Thank you Lisa for making this right!

I had high expectations of this service provider after my first visit, where I was seen by Dr…read more Nguyen, he was very very thorough and I had high hopes. He diagnosed me with moderate to severe eczema and wrote two prescriptions, this was on January 7th. I asked about allergy testing and he told me that it had to be approved by my insurer. I made a follow up appointment to see Dr. Nguyen and get the allergy tests. I had to cancel the follow up appointment (three weeks after my original appointment) as my prescriptions had not been fully approved and there was no confirmation that my allergy testing had been approved. When I cancelled my appointment online, I was "told" that someone would be in touch to reschedule, they were not in touch. I left detailed voice messages that went unanswered. I spoke to my insurer and pharmacy and they both told me that there were errors in my prescription. One had the prescription for a daily maximum that was mean to be a monthly maximum. It took a few calls to have that corrected. My main prescription remains unfilled, and I am told that it was because of an error in how it was written and submitted. My pharmacy told me that they had tried to resolve it with Allergy Partners and they asked me to intervene, as they were unable to make progress with the prescriber. I spoke at length with someone at Allergy Partners, she took great care to understand the issues and promised to pass the matter for the attention of one of her colleagues. She asked me to allow a week for an update. What a shock, a week later and I have heard nothing. The level of administrative support provided at Allergy Partners has been abysmal, even when you get an excellent clinician, the, like their patients, are let down by a back office function that is wholly inadequate. Interestingly, I am not the only person having this type of experience. The clinicians need to do a better job on follow-ups, then they might better understand their patients' experiences.

I had my first appointment with Dr. Sayal as a new pulmonary/allergy patient two months ago. The…read moreoffice sent me several reminders and asked me to fill out the patient profile on-line before arriving to save time. His Henderson office is in a new building and the waiting area was comfortable and the front desk staff were friendly and professional. I've had a total of 4 appointments here and the average wait time was 15 minutes. Dr. Sayal comes across with a pleasant demeanor and genuine caring for his patients. He has examined me, gave me a treatment plan, and answered all my questions. He did not rush our appointments which is always appreciated. I can see why he has such high Google reviews. They are well deserved.

my husband was scheduled for a sleep study (for the 3rd time) on dec 10, 2025 that he did not go…read moreto because the clinic told us that they will verify it with the doctor first since he already had a 2 sleep studies, one at home and one in the lab. they did not call to confirm or call at all about the appointment. when i called them the day before the appointment i was told that its very late to cancel and that i need to go but i explained to them that we have been waiting for their call but they did jot bother calli ng at all. we ended up rescheduling the appointment but we were still charged no show fee of $200 even it was the clinic's fault for not communicating with us. we also overpaid and has a negative balance that we were supposed to get back but the clinic doesn't bother sending a check but is very good at charging people. i filled a dispute and refund, i better get this money back. also, not coming back to this clinic anymore since they want to keep charging patients unnecessary tests and multiple sleep studies. ridiculous! they care more about money and not their patients.

I have been seeing Dr. Schwartz now for over seven years…read more She is straight to the point doesn't share or sugar coat nothing! That's all I want in a doctor. She might not cater to all the nonsense, but she will tell you the way it is and what you need to do to get better. When I had stage four cancer, she was the person that diagnosed it and got me the best care that I could received. I am still here and they gave me a 20 to 25% chance of survival. I attribute my life to her diagnosing it and seeing it before it got worse than it was. So if you want nonsense care, I'll highly recommend Dr. Schwartz

They make up an appointment and never reminder you, you shout carefully never know an apointment…read moreThey will not call you to confirm or remind of your appointment.

I called them made an appointment for the following morning . They called me back two minutes later…read moresaid they had a cancellation. Then I got a call a minute later that they were 30 mins away . Between the call the visit and picking up my son's script it was about an hour and ten minutes . Thank you so much to all the staff members . 100 percent recommend.

While nobody likes when their PCP is out of town and they get sick, this wound up being a blessing…read morea few weeks ago because I discovered Doctoroo. I had a clinician in my home within 4 hours of calling, and she was also thorough, kind, and candid in her assessment. I loved that a technician traveled with her so she didn't have to chart, and she could focus on putting my strange symptoms together, make an accurate diagnosis, and arrange a series of medications to be called in directly to my pharmacy. The best part? The visit was more affordable than urgent care under my insurance plan, and I got to be treated in my home. I considered not posting this review, because I don't want too many people to know about Doctoroo, but my experience was too great to stay quiet. I will definitely be reaching out again in the future (but, hopefully, I won't have to too soon.)

Ok so heads up Typically a long wait but, the knowledge and quality of care this doctor provides is…read moreoutstanding. Before my child was under his care. My child went through several doctors and hospitals. Thankfully Dr Nakamura was at Summerlin hospital when my child was there he treated him and gave us his business card for a follow up. Since then my child does great Dr Nakamura is a phenomenal doctor and has a great attitude and sense of humor. Won't go anywhere else except to him.

Dr. Craig Nakamura and his staffs are professional, kind and compassionate. My 3 year old son…read moreenjoys visiting this amazing & fun office. He has been wheezing since March of 2019. Dr. Nakamara help strengthen his lungs and he have not wheezed since his last visit in September. This office is completely decorated with Super Heroes, Disney characters, Animations, Sports and many more interesting collections. Dr. Nakamura knows how to make my son feel comfortable & important. Ruby also made our visit very enjoyable and welcomed as well. Thank you for your great service