★ 5

professional, clean, friendly and has two of the best hygienist

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★ 5

Dr Mahon is the best in town. Ms Liddy the Hygienist has had my back for years on cleaning and shinning the teeth.

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★ 5

Very nice staff and the office is immaculate. Always on time

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★ 5

The waiting room and offices are very clean. The services are stellar. Very comfortable and calming atmosphere.

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★ 5

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★ 5

I had a great experience here at Sienna Dental.

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★ 5

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★ 5

Friendly, professional and skilled. That’s all you need to know.

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★ 5

Friendly and competent staff.

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★ 5

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★ 5

I had an excellent experience at Sienna Dental today! I went in to have a cavity filled, and they took me in right away. As soon as I sat down, everyone made me feel welcomed by asking how I was doing.

Dr. Mahon was professional, thorough, and efficient. He explained each step of the procedure as he worked, which helped me feel comfortable and at ease the entire time. The treatment was quick, but I never felt rushed, and I truly appreciated the attention to detail.

Lourdes was also incredibly kind and helpful throughout my visit. Best of all, I felt absolutely no pain during the procedure. The entire experience exceeded my expectations, and I highly recommend Sienna Dental to anyone looking for compassionate, high-quality dental care!

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★ 5

I have been going to Siena dental for a year now. I am impressed with the care and professional approach. I recently cracked a tooth. The staff got me in and Dr. Mahon performed the restoration treatment quickly with minimal discomfort. Highly recommend Siena Dental.

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★ 5

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★ 5

Libby is amazing! I can always trust her with my dental health. Dr. Mahon is also amazing and a true expert especially with trickier procedures. I also want to shout out Lourdes. She helped in one of my procedures, and she was very caring. No judgment zone, and the staff is very welcoming.

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★ 5

Couldn't ask for a better dental facility. Staff is friendly and highly professional.

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★ 5

I love Siena Denta! Dr. Mahon and the entire office is amazing 🤩

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★ 5

I’ve been a patient at Siena Dental for years. Truly the friendliness and most professional group of people anywhere.

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★ 5

Krisdie is the best....She is efficient and an excellent Hygienist.

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★ 5

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★ 5

My husband was a new patient and his experience was absolutely fantastic. He had X-rays and a teeth cleaning from Libby and then an exam by Dr. Mahon. The entire team was thoroughly engaged and he already has his next 2 cleaning appointments set up over the next year. Thank you Siena Dental!

Source: Google

★ 5

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★ 5

Best Dentist in Town. Everyone there is so friendly and helpful. Every visit has been a pleasure. The facility is always kept clean and comfortable. All my cleanings and dental work has been quick and painless. Excellent Dentist!!

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★ 5

The best dental office in Las Vegas hands down!!!

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★ 5

Everyone was terrific. The dentist, the hygienist, and the rest of the staff were great. I just found my new dentist. Update, my second visit and they are still fantastic. Update, my fourth visit and they continue to impress. Update, fifth visit ... always great. Update, sixth visit ... I look forward to going to the dentist.

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★ 5

Dr. Mahon and his staff are always very professional yet polite. No pain and excellent work! I highly recommend Siena Dental for all of your dental needs.

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★ 5

Libby is a wonderful hygienist! My teeth felt refreshed and she was gentle. Dr. Mahon is a great dentist! He is honest and trustworthy. I enjoyed my visit.

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★ 1

I went for a teeth cleaning they said we only needed to pay 80 dollars but now apparently we owe 149 dollars and I remember paying that day we had the appointment!!!!

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★ 5

Excellent, friendly service from Dr. Mahon.

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★ 5

Love the location, staff is friendly and Krisdie is excellent when it comes to cleaning my teeth. Very friendly and thorough!!

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★ 5

I had my teeth cleaning and Xrays done today. Libby did a great job with the cleaning!! Dr. Mahon did a fantastic job checking my teeth and mouth.This office runs like a well oiled machine. In and out seamlessly.
Please go to Sienna Dental at 10075 S Eastern as they are great! Dr Mahon is so professional and caring.

Give them a try, you will be VERY Happy you did.

Source: Google

★ 5

Quick update: 5/22/26 Consistently the Best Dentist and Hygienist anywhere. Honest, ethical, knowledgeable, thorough, and competent. Libby & Dr. Mahon are 6 stars. I've been a patient since 2004. They have made me comfortable going to the dentist!

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★ 5

First visti to Siena Dental, great service, nice staff and I'm glad to have chosen them for my dental care!

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★ 5

The service is professional and friendly. I found Siena Dental shortly after moving here and have been happy ever since!

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★ 5

Great dental staff.

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★ 5

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★ 5

Always a pleasant experience!

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★ 5

Superb staff and excellent, courteous service!+

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★ 5

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★ 5

I am a veteran to this building… lol….and a patient to Libby … The Best Dental Hygienist. The entire Office including
Dr. M are kind, patient and very Welcoming.

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★ 5

This place is very good. They explained their work and listened to my questions. I feel very pleased with this office. I moved here from Denver and I needed to find a good dentist. I’m grateful that I found this one.

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★ 5

I have been a patient of Dr Mahon's [aka "Dr Sav-a-tooth"] for over 10 years! He and his dedicated staff are outstanding! I hope to be his patient for many years to come [I told him that "He can't retire"!!]. Superb dentist!

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★ 5

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★ 5

Excellent service, at the front desk, Susan was very kind. The Dentist is very experienced
And took her of my problem right away!

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★ 5

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★ 5

The staff is very pleasant and professional. It makes you feel very comfortable. The facility is spotless.

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★ 5

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★ 5

Great service, kind and friendly people. Makes a typically uncomfortable experience more calm.

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★ 4

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★ 5

Bree , RDH and Dr. Mahon were both excellent. Glad I found him..Everyone is nice. Best dental place I've been. Been in las vegas since 1980.

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★ 5

Very professional and does excellent work.

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★ 5

I actually rarely leave reviews. However, Siena Dental has been amazing and I’m so appreciative of Dr. Mahon and the whole staff, from the reception to the hygienist. I’m very happy I found them and felt I should share. What a different experience than previous dentists in the past. I’ve been going here for a couple years now and they’ve never had me wait past my timed appointments, never tried to upsell me, always worked with my insurance first before charging me, family atmosphere, and most important…pain free excellent work. Dr. Mahon has done some great work on my teeth at a very fair price. Krisdie is thorough, patient, and probably the best hygienist I’ve ever had. Thank you Siena!

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★ 5

Dr Mahon and his staff are absurdly incredible! I have been going to his practice for 12 years now and love how everyone is making it so easy. I have never waited longer that few minutes and they go above and beyond to accommodate me. Truly the best dental practice and a dentist I have ever met. Dr Mahon is so gentle and never recommends unnecessary work. Highly recommend this practice!

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★ 5

Dr. Mahon is the best. We’ve been going to him for years and we are always happy.

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★ 5

Great staff. Getting my teeth cleaned was almost enjoyable

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★ 5

Great staff…and workmanship!

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★ 5

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★ 5

Dr. Mahon filled my tooth instead of the usual crown which costs a lot of $$. And he did a good job. Got the appointment right away and I can tell he’s an experienced dentist. Thanks.

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★ 5

I've been going to Siena Dental for 18 years and the staff is exceptional. Libby is the best hygienist I have ever had.

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★ 5

The most wonderful staff. Always a great experience.

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★ 5

Sienna dental is my trusted source for all of my dental needs. Dr Mahon and his staff are very friendly, caring and professional. The "Apple" of dentistry!

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★ 5

Amazing! Office atmosphere comfortable. Admin outstanding. X-rays, exam outstanding. Cleaning outstanding. Billing fast and accurate. Highly recommend!

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★ 5

The incredible efficient staff and Dr Mahon are the Best !!

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★ 5

I broke my tooth and called to have it repaired they took me in asap and
repaired and did wonderful job.
I commend Dr Mahon

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★ 5

Caring staff and dentist. This was my first visit and I will be back. Good experience

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★ 5

It was my first visit, and I loved it! Everyone was so kind and welcoming, and the service was amazing. I definitely recommend them!

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★ 5

Staff and doctor are a magnificent team. Would highly recommend. My family is very pleased with Siena Dental

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★ 5

Outstanding

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★ 5

I love Dr. Mahon and all of his staff. They are the best! I had a recent emergency and they fit me right in and were so kind and caring.

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★ 5

Twice a year I get my teeth cleaned with Brea. The office is welcoming, clean, quiet and calm.
I am promptly called at my scheduled time. Brea is a consummate caring professional without trying to upsell me unnecessary dental procedures.

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★ 5

Great staff, prompt attention, fair pricing. These folks actually care about their patients.

We have used them for years. They treat us really well.

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★ 5

Great staff
On time

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★ 5

Good hygienist, good experience. Thank you

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★ 5

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★ 5

The best ever! Very nice and friendly. Clean and great employees. Love my hygienist Sunshine!!

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★ 5

Great experience, staff and Dr. Mahon are top notch professionals. Warm and friendly environment, highly recommend. Thank you again for taking such good care of me!

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★ 5

Libby is the best hygienist and Dr. Mahon is great.

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★ 5

I received outstanding service at Siena Dental. Sunshine was exceptional cleaning my teeth and the dentist and staff were very pleasant, kind and friendly. Great place for your dental needs

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★ 5

5 Star ⭐️⭐️⭐️⭐️⭐️ everything about Sierra Dental is excellent!

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★ 5

First off, I was greeted with smiles and professionalism in every direction, Susie and Kiana were very welcoming. I only waited a few minutes and the hygienist "sunshine" took me right back to her station. I felt very comfortable there. It's a beautiful office. Her chair-side manners were very professional and courteous. "Sunshine" did the x-rays, the cleaning and the flossing as well. For the first time in years, there was no pain or discomfort. Very well done. Will i come back to Siena Dental, you bet your teeth and gums I will........!

Source: Google

★ 5

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★ 5

I have been going to Sienna Dental for about 18 years. Dr Mahon and his staff are by far the most professional, caring, and highly trained in their field. My entire family also goes to their practice. Hopefully it will be another 18 years.

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★ 5

I always enjoy my time going to Siena dental they always do a great job and deliver great experience.. Today I had a new hygienist and she did an outstanding job..

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★ 5

The best dental care in Henderson!

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★ 5

I love this place, the staff is so kind and helpful..

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★ 5

I came here based on the reviews after frequenting an office (RS, you can guess) that was absolutely all about over charging and trying to upsell you on services (felt like I was in a timeshare presentation.) This is my personal opinion, but loved my experience here. Super professional dentist and staff. Loved my experience and excited that I found a dentist I can trust.

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★ 5

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★ 5

I have been attending this Siena Dental facility since 2011 and I live in centennial hill. I will always use them because they are friendly, professional, and, honest. The facility is always clean with a grate appearance.

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★ 5

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★ 5

Thank you very much for taking care of my family for over 20 years. Hugs Libby! You guys are the best !

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★ 5

My grandfather referred me to his dentist Dr Mayhan (not sure if I spelled this right) for an upper denture, after my own dentist from a different practice failed to make a pair that I could wear or fit properly. I spent nearly 2yrs with no top teeth before coming to see Mayhan.

I am amazed and very happy with the denture that was made by Dr Mayhan and his team, the denture fits like a glove and works great. I was able to comfortably eat with them the same day I picked them up from his office. I still can't believe how easy my new dentures are to wear! Dr Mayhan got it right on the first try!

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★ 5

I've been to Siena dental for several years! Krisdie does an excellent job cleaning my teeth with very little discomfort . All staff are pleasant and professional!!

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★ 5

Love Siena Dental have used them for close to 20 yrs all clinicians and front desk staff provide excellent care and service

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★ 5

They did a great job on my cleaning and xrays.

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★ 5

I've been going to him for close to 20 years. I really trust him and he is always first class. You cant find a better dentist.

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★ 5

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★ 5

I have years of experience in the field of dentistry and easily recognize varying levels of skill, expertise and client service. Siena ranks as one of the best dental practices I have used. Highly recommend them for all your dental care!

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★ 5

Always the best !!

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★ 5

I had a dental emergency, the fit me in the same day and the staff and Dr Mahon are excellent as usual

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★ 5

Fast, friendly, gentle service.

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★ 5

Great place to go, fair prices and great awesome service.. They do have the best hygienist their without hurting your gums..

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★ 5

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★ 1

After going to this Dental practice for decades I was sent a letter recently informing me that the practice no longer takes my insurance because they don't get paid enough for cleanings. Libby is by far the BEST Dental Hygienist I have ever met, she has taken care of my family of 6 for over 15 years. Because of a greedy Dentist who wants more money from a insurance company instead of keeping his patients coming back to his practice he is forcing us to go elsewhere. Thank you Libby for being a great person whom served my family well with her careingnesss and professionalism. I hope that the Greddy Dentist will suffer greatly in lack to business because of his stupid decision to stop taking many patients insurance.

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★ 5

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★ 5

Best Dental Practice in Las Vegas, very professional dentist that know and love what they are doing.

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★ 5

Always the best. I have been coming here for 10 years and they are true professionals. Every time I get my teeth cleaned it is a quick and easy process. If you are looking for a dentist look no further

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★ 5

Very helpful as the aging population struggles with changing coverages in Medicare. We all need to work together! Thank you Siena Dental team. We’ll figure it out!!

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★ 5

Great dental office! Super clean, quick and everyone is so kind.

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★ 5

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★ 5

Always a great experience at Siena dental. The staff are always friendly, informative, and skillful.

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★ 5

Friendly Service and Overall Great Visit!
Thank you Guys!

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★ 5

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★ 5

The office staff is very friendly, and my dental hygienist was exceptional!!

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★ 5

I have confidence with this dental office. Always great service.

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★ 5

The staff is great and Dr. Mahon is truly kind and does magnificent work. I feel that he is trustworthy, and that's hard to find in a dentist. I tried Absolute Dental, and they were a nightmare in every aspect. He is a great dentist, and I will never go anywhere else.

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★ 5

This team is a class act! Always on time, friendly patient interaction and good, solid dental work. My wife and I have been going there for several years and I highly recommend.

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★ 5

Dr Mahon is an amazing dentist! And his staff is wonderful too.

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★ 5

Been a patient there for many years Always satisfied with the services rendered the front office staff is great and Libby my hygienist is fantastic

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★ 5

Absolutely fantastic customer service and top quality hygienist! Very efficient office. I highly recommend this practice.

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★ 5

Outstanding professional service.

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★ 5

Dr Mahon is so awesome. And his staff is very very friendly and his associate today was so sweet to me. I would recommend them highly.

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★ 5

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★ 5

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★ 5

Everyone is very friendly and very helpful. I had a great experience.

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★ 5

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★ 5

It was my first time visit at Siena dental. I did a cleaning with Sunshine and it was the best experience I ever had! Highly recommend!

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★ 5

She is really good

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★ 5

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★ 5

Libby, the hygienist, is superb!

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★ 5

Excellent Dentist who did an incredible job! I am so pleased and grateful for his expertise, kindness, patience and knowledge.

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★ 5

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★ 5

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★ 5

We moved to Henderson in 2020 and have been looking for a good dentist. Been to a couple of different ones and was NOT satisfied. Mostly because they wanted to do procedures that, we found out, were "unnecessary "! We passed by Siena Dental on Eastern Ave several times and decided to try them. From the very first visit, they were very sincere and understanding. The hygienist (all of them) are very gentle and makes you feel like "family". Dr. Mahon's bedside manner is excellent and we are so thankful we found them!

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★ 5

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★ 5

I swear this is the best dentist I've ever been to. From cleanings to fillings. They are quick, efficient, and very kind. I've had issues in the past with dentists office's where I wasn't 100% numb or it was painful and this made me nervous to get a filling done but they made sure I was completely numb and made me feel very comfortable.. So happy I found this place definitely recommend!!

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★ 5

Just had a cleaning from Libby. She us the BEST!!!!

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★ 5

I had an excellent experience at this dental clinic! Libby, the hygienist, is incredibly skillful and friendly. She made me feel at ease with her pleasant demeanor and skillful hands. Dr. Mahon and the entire staff are very professional, knowledgeable, and welcoming. From the moment I walked in, I felt well taken care of. I highly recommend this clinic for anyone looking for top-notch dental care.

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★ 5

Great Staff. Krisdie is exactly what you want in a Hygienist, careful and meticulous, and Dr. Mahon has a great patient interaction and is very knowledgeable. Dentist appointments can be uncomfortable, but I am never nervous visiting Siena Dental.

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★ 5

I know I’m in good hands. I’ve been coming to sienna dental for 8 years. The whole staff is considerate and do an excellent job.

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★ 5

This is a great find! The place is super clean and run very efficiently. The ambiance is calming and bright, and the exam rooms are private. More importantly, the staff are excellent. They are friendly, courteous, professional and greet you with a smile and appreciation. Dr. Mahon is also great and very thorough. I’m extremely happy to have become one of their patients.

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★ 5

Always run on time and service is excellent with care and gentle.

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★ 5

Excellent service. The best I have ever used.

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★ 5

I just had a wonderful experience at Siena Dental. They were caring, professional and extremely efficient! I will be back.

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★ 5

Excellent dental clinic. Staff are wonderful and amazing.

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★ 5

Krisdie she is the best. I love this dental office and Dr Mahon is a great dentist

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★ 5

I LOVE Siena Dental! Been going there 3 years now and it’s always wonderful. Dr. Mahon is THE BEST. And so are all the staff.

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★ 5

I always enjoy going to the dentist. It’s a great place and the staff does a great job 👏🏻👏🏻👏🏻👏🏻👏🏻

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★ 5

Dr Mahon & staff are the best!

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★ 5

Libby is always fantastic! The entire office could not be more outstanding. Have been going there for many years -- would go no where else.

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★ 5

I highly recommend! This place has taken away all my Anxiety when I go to the dentist.

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★ 5

Great service and friendly staff.. Definitely recommend Siena Dental.

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★ 5

Great doctor, great staff. Never had to wait long. I have been a patient there ever since Dr. Mahon took over the practice. I have experienced a few different procedures. All were done well .

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★ 5

Got me in early to my teeth cleaning and did a great job. Thank you!!

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★ 5

Great experience! Highly recommend.
Libby is the best!

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★ 5

I drive 35 miles to see Dr Mahon. I moved and tried 3 different dentist. They didn’t even come close to the expertise of Dr Mahon. No waiting for an hour, Sherie at the front desk is the best. My teeth are in the best hands of Las Vegas dentist! Siena Dental is the only place to go!!!

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★ 5

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★ 5

Dr. Mahon is the BEST!!
His professionalism, knowledge, gentleness along with his amazing staff are second to none in patient care.

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★ 5

I had a crown fall off a couple of days ago while eating. The office was able to schedule me in the next day to re cement in place. I appreciate it immensely!

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★ 5

Libby is the best hygentist, kind, gentle and thoughtful. My teeth look amazing... Thank you Libby.....

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★ 5

Emergency visit. Took me right away. Staff are wonderful! Dr is great!!

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★ 5

Professional staff, care about your issues & handle all services efficiently

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★ 5

I can't say enough for Dr. Mahon and his wonderful staff. I have been going here for 15 yrs and drive from NW centennial hills cause they are that great!

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★ 5

Best Dentist ever~^^

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★ 5

It took me a while to find a dentist that I felt comfortable with. Dr. Mahon and the staff here are amazing. Plus they open early!!!

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★ 5

I broke a tooth eating chicken fried rice and I was seen the very day I called and I was taken care of sensitively and professionally- very nice service

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★ 5

No waiting, Libby is an excellent hygienist, and her work is painless.

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★ 5

I have been going to this office for many years and I love them! I recommend them to anyone looking for a superb dentist or hygienist all the time. Deserve more stars than five.

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★ 5

I’ve been a customer for years! Everybody is so awesome! Dr. Dave Mahon is amazing and always ready to help me when I have a tooth issue! Always thankful! 🙏🏻🙏🏻🙏🏻

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★ 5

LIBBY CLEANED MY TEETH-DOWN TO MY TOES!!HAVE BEEN GOING HERE FOR YEARS❤️❤️❤️❤️

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★ 5

The Dental Hygienist Bree was absolutely excellent. Extremely thorough, paid a lot of attention to how I was feeling and had excellent technique. TOTALLY recommended.

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★ 5

Hands down Best Dentist i have been to the entire staff is Awesome on time every time

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★ 5

Very professional and courteous.

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★ 5

Great place to have your teeth worked on.

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★ 5

Love it here! Been coming here for dental work since 2002! Everyone is friendly and professional.

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★ 5

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★ 5

I switched to this dental office based on reviews and had my first appointment yesterday.
They surpassed my expectations! Bree, the hygenist was absolutely wonderful!
Dr. Mahon was friendly and welcoming.
So pleased to have found them!

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★ 5

Excellent care. When I go there I don't get nervous. You feel very comfortable. Been going there for years. Great people.

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★ 5

I highly recommend Siena Dental. Dr. Mahon is an excellent dentist. The Siena Dental staff is excellent, as well. I give them 5 Stars for their friendliness, professionalism, and performance.

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★ 5

The staff is great. The hygienist is very pleasant and knowledgeable. Always feel like we are getting the best care possible.

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★ 5

You always feel welcome everytime were coming! and Cristy she goes above & beyond for giving an excellent service! Highly recommended for sure👏👏👏

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★ 5

Staff is so easy going! The most reasonable dental office I’ve been since I moved to Nevada.

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★ 5

I highly recommend Dr. Mahon and his team! I have been coming here for several years now and the staff is consistently efficient, professional, friendly and their work is outstanding!

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★ 5

I've lived out here 7 years now and wish I had come to Siena Dental from day one. This staff is awesome, best service too.

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★ 5

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★ 5

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★ 5

Dr. Mahon and his staff are awesome. I would highly recommend him.

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★ 5

As usual my experience was wonderful. Dr Mahon and his staff are courteous, professional, and personable. They’re interested in your well being and do everything they can to insure a positive outcome. They are as flexible and accommodating as possible to see to your dental needs.

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★ 5

Love this office !! BEST DENTAL OFFICE EVER ! BEST DENTIST, BEST HYGIENIST, BEST STAFF, all around STELLAR and EXCEPTIONAL!! Thank you and soooo happy I’m an established patient.

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★ 5

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★ 5

Couple years ago I was referred to Dr Mahon from an endodontist after a horrible experience. Best dentist I have ever been to and I have seen a lot of them over the years. Live in Pahrump and commute is nothing knowing I am getting great service.

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★ 5

I highly recommend Siena Dental for all of your dental needs! The staff together with Dr. Mahon and his hygienist are wonderful!
Always the best,

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★ 5

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★ 5

Best Dental Office in town! Full Stop!
Always prompt and not looking for “ make work “ Dental
Love them!

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★ 5

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★ 5

The best dentist office ever! Dr Mahon and his team are amazing. I strongly recommend them. Super professional and honest.

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★ 5

Krisdie took great care with us to clean our teeth and we would highly recommend her. The front desk was friendly and welcoming. The dentist took time and checked us over. Everyone worked well together and we are glad our friend recommended Sienna Dental.

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★ 5

Friendly staff great dentist nice office. Been a regular customer for years. No matter where in Vegas you are some things are worth the drive.

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★ 5

Awesome as always.

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★ 5

Dr Mahon, Sherry and Kiana are all 5 star professionals. The office is conveniently open 8-5 Monday-Thursday and I never are kept waiting for my appointment.👍👍👍👍👍

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★ 5

Sienna Dental is great. Sherry is at the front desk and you see her upon entering, and talk to her when you leave. She is efficient, friendly, and an exemplary employee.

I have had Libby as my dental hygienist for 20 years and she is gentle and detail oriented. I have never tried another in the office, but I am sure they are as good as Libby-or they wouldn’t be there.

Dr Mahon is a man of character. Not only does he have a gentle touch, he is a good dentist, honest, and explains what you need to do without any pressure. He sets the tone of his office. It’s why his staff is so friendly, efficient and drama free.

Source: Google

★ 5

Dr. McMahon, Sherri and the hygenists are the best! Latest tech but conservative approach.

Source: Google