Mona Lisa Smile Dental
Mohammad Khandaqji, DDS:
Practice Profile Page


Mohammad Khandaqji, DDS

Mona Lisa Smile Dental
San Ramon, CA

Mona Lisa Smile Dental
Antioch, CA














A list of major dental treatments which I offer my patients:

Dental cleaning

White fillings


Inlays & onlays


Clear aligners

Porcelain veneers

Teeth whitening

Dentures & partials

Root canal treatment

Tooth extraction

TMJ treatment

Dental implants


Offers Even28 at-home™? No

Offers Even28 at-dentist™? No

Offers Invisalign®? Yes


Monday: 9:00 am to 7:00 pm

Tuesday: Closed

Wednesday: 9:00 am to 7:00 pm

Thursday: Closed

Friday: 9:00 am to 7:00 pm

Saturday: Closed

Sunday: Closed


Monday: Closed

Tuesday: 8:00 am to 9:00 pm

Wednesday: Closed

Thursday: 8:00 am to 9:00 pm

Friday: Closed

Saturday: Closed

Sunday: Closed


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Check out what some of our happy patients are saying about us:

Hamed A. from Fremont, CA (Source: Yelp)


Through all my years I never enjoyed my experiences at the dentist however, all of that changed when my friend who received Veneers recommended Mona Lisa Smile to me. Dr. K and his team have been super professional and friendly during my experience with receiving FastBraces treatment. Their attention to detail is by far like nothing I have experienced before. Keep in mind that I received FastBraces at 26 years old and Dr. K was still able to successfully give me that ‘Mona Lisa’ smile. I went from avoiding the dentist as much as I could my entire life to looking forward to my dental visits for cleaning and checkups 🙂 I absolutely recommend this place to anyone living in the Bay Area or even visiting from out of town. A+++

Paula H. (Source: Zocdoc)


The whole staff was gentle and very caring, me and my family (Husband, 4 kids and myself) felt comfortable as soon as we stepped foot in the door. they were all very family understanding. I’ve been recommending Dr. K to everyone at work. Thank You PHH

April J. (Source: Zocdoc)


My visit was wonderful. All of the staff are very friendly and courteous. I appreciate how Dr. Khandaqji took out time to explain my X-rays and treatment I would need. You can tell that he really cares about his patients. I also was made to feel very comfortable and relaxed. I would highly recommend Mohammad Khandaqji to all my friends and family. Both my daughter and I had such a positive experience!

George W. from San Francisco, CA (Source: Yelp)


I was generally happy with my smile, but some teeth were overlapped slightly so Dr. Khandaqji suggested Fastbraces ®. I felt it necessary and went ahead with it. I had Fastbraces for about one year and now my teeth are straight. If you are considering braces I would recommend Fastbraces because they didn’t hurt me and they fixed my smile is only one year. You can’t beat wearing Fastbraces ® for one year vs. regular braces for two or three years! I am much happier now and think it was totally worth it. Now I love showing off my new smile! From the time I first walked in the door for my consultation, the staff at Mona Lisa Smile Dental and Dr. Khandaqji made me feel right at home. I would highly recommended Mona Lisa Smile Dental and Fastbraces ® to anyone wanting to improve their smile it is definitely worth it!

LH (Source: Zocdoc)


My visit to Dr. K’s office was fabulous! The place is clean & organized. The ladies in the front office were very welcoming. The assistants were friendly and very knowledgeable. The Dr. was caring and very informative to my needs. He was gental and was a good listener. I enjoyed every moment there!!

Jon B. (Source: Zocdoc)


Dr. K is well-known in the San Ramon community as the best dentist in the area. He’s great with kids (I’ve been bringing my teenage daughter to him for over 7 years) and a wonderful person in addition to being a great doctor. His staff are very friendly and make scheduling convenient – I’ve never had to wait at all. Dr. K seems to have the most up-to-date and advanced methods and I’ve never had any pain. Highly recommend, you won’t regret it!!

Jennifer O. from Orinda, CA (Source: Yelp)


I’ve been going to Mona Lisa Smile Dental in San Ramon for 4 years now, and I can’t say enough positive things about them. I’ve had crowns and veneers done here, in office whitening, clear aligners for my teeth and a night guard made on top of regular cleanings.Last week I went in looking for immediate help with a snapped tooth. The front desk got me in right away, respected my needs and situation, and went out of their way to make me comfortable while getting me fixed up quickly and smoothly that same afternoon. High tech and modern. Good people. Best experience I have had at a dentist to my memory.

Megan W. from San Ramon, CA (Source: Yelp)


This office was very nice. I was browsing on the web to find a good practice and I came across them. They checked my insurance and explained my coverage to me throughout before I made an appointment. My last doctor was out of network I had to pay very high co-payments. Second, the dentist took the time to go through my treatment with me and discuss my options. He was very kind and honest. I had a wonderful experience.

Kelly C. from Walnut Creek, CA (Source: Yelp)


I’m a new patient to Dr. Khandaqji and originally made an appointment because I had an old filling fall out and needed it replaced ASAP. The team was friendly and helpful with coordinating a time to come in and reviewing my dental benefits with me. I was ultimately referred to another doctor to have a root canal as Dr. Khandaqji explained what my best options were and then returned afterwards to have Dr. K put the crown on. His referral was excellent, Dr. K was excellent, the staff is always incredibly friendly and patient. The office is immaculately clean as well. It’s hard to find a reliable dentist let alone one as understanding and talented as Dr. Khandaqji. I will be coming back regularly and highly recommend Mona Lisa Smile Dental.

Tom K. from Walnut Creek, CA (Source: Yelp)


My family has been going to this dentist office since 2011. It is my pleasure to meet Dr. K, a truly knowledgable and wise person. I noticed some of the reviews people wrote about his office is falsifying information. It is obvious that these people have a grudge against him or his practice but don’t believe them! Go see for yourself how they truly care about their patients.

Mz. M. from Pittsburg, CA (Source: Yelp)


I had a really bad experience when I was younger at a dental office and I was really scared of going to the dentist….But Dr. K made me feel really comfortable being there and to be honest… NO PAIN! I got my 4 wisdom teeth extracted here and I didn’t feel a thing! I love Mona Lisa Dental and I will be bringing my family here also. Their staff is really nice and explained everything very well in detail…. Thank you guys!

Nessa T. from Walnut Creek, CA (Source: Yelp)


I was extremely nervous before coming in here, when i arrived Sahar greeted me & was EXTREMELY kind. She helped me get started, she took me to the back & the place was so clean. I met Dr. Mo & he was also very kind & honest & he was willing to help my situation with my smile in any way he can. They’re both so lovely & kind, i’m truly happy to find a place that makes you feel comfortable & confident with your smile. We need more people like Dr. Mo & Sahar. I don’t get nervous anymore going to a dental office.

Dennis D. from Danville, CA (Source: Yelp)


First of all! Dr. Mohammad Khandaqji and his team are awesome! Clean facilities and state of the art equipment! I came in for an emergency tooth repair in the back of my mouth and they took me the same day! In that visit Dr. Mohammad told me he could replace my old crown I had in the front. Which was old, dull and didn’t blend well with the rest of my teeth. Plus I had a small chip on the tooth next to my crown. I was worried but he assured me the new tooth comes from his state of the art laboratory and the new tooth will look natural! I agreed to do it and  he fixed both of my teeth in the front! I forget which tooth is a crown lol! Immaculate work! Unbelievable! I love my new smile! Thanks Dr. Mohammad!

Daniel M. from Alamo, CA (Source: Yelp)


Dr. Khandaqji and staff are great. Not only does he do exceptional work but he keeps me laughing through the entire process. He has designed a long term plan for the shaping of my mouth and straitening of my teeth as well as set up a short term schedule to take care of my dental needs. I’ll have you know that I have avoided going to a dentist for 10 years due to my previous experience as a child and my fear of all dental procedures, but Dr. Khandaqji makes me feel so comfortable that I actually look forward to my future sessions.

Roger B. from Dublin, CA (Source: Yelp)


Our insurance changed which led us to find a new dentist.  When we stopped by Mona Lisa Smile Dental in San Ramon we were sold. The facility is spa like and Dr K and his staff are awesome.  They also have some pretty cutting edge 3D scanner.  If you’re looking for a family dentist in San Ramon I’d highly recommend Mona Lis Smile Dental of San Ramon.

Julia B. (Source: Zocdoc)


I hadn’t seen a dentist in over 2 years and that last checkup seemed to be rushed. This time around, I went to see Dr. Khandaqji. He was extremely thorough and honest and explained everything to me so that I understood what he was looking at. Even though I thought I would just be getting an exam, they gave me the option to get started with a deep cleaning right away, which I did. The hygienist who did my cleaning, Sahar, worked WONDERS for my teeth. They immediately looked brighter and felt better by the time she was done and she was very careful to make sure I didn’t feel any discomfort whatsoever. I will definitely be going back here for all of my dental work.

C W. from San Ramon, CA (Source: Yelp)


Love Dr. Mo and Mona Lisa Smile Dental in San Ramon!! Had braces put on my middle son and it was the best experience we’ve ever had with a dentist. The rest of the family has only had a regular cleaning and check up but my wife is planning on getting her teeth whitened. If you are looking for a dentist in the bay area, specifically San Ramon, I’d highly recommend Mona Lisa Smile Dental.

Elizabeth L. from San Ramon, CA (Source: Yelp)


Extremely clean facility. Luxury dental chairs strictly for the comfort of us customers. The entire staff is so friendly and courteous they treat you like family.  Dr. K and his wife always try to figure out payment plans that are manageable. My family and I are so happy with the quality work provided and we trust them. We are so excited to show off our new and improved smiles!

Cicily P. (Source: Zocdoc)


I LOVE seeing Dr. K. He is an absolute delight. I am not just another patient in his chair; rather, I’m a human being in front of him that he cares to get to know and develop a relationship with. His staff is absolutely wonderful – they are waiting for me every time I come in, like I’m their only patient! As he was cleaning my teeth today, I thought, ‘I have no idea why people are so afraid of going to the dentist. I can’t wait for my next visit!’ I HIGHLY recommend Dr. K and his staff!!! 

John P. from San Ramon, CA (Source: Yelp)


I did a veneer here and let’s just say the work done was absolutely amazing. As soon as I walked in I was helped and felt extremely comfortable. The Dentist ( Dr. Khandaqji) who worked with me did a fantastic job and delivered the promises he made. I definitely am more confident with my smile. I highly recommend doing further work with this dental office and I mean that with the bottom of my heart.

Tim H. from Concord, CA (Source: Yelp)


Dr. Khandaqji is hands down the best dentist in San Ramon. He always takes the time to thoroughly explain my proceedures. The Mona Lisa Smile Dental staff is great, they are gentle and patient with those of us who are a bit more uneasy. I recently had three fillings done and it was one of the most relaxing appointments I’ve had for a very long time. You can really tell that they have a lot of expertise and skill in their craft. I also had a few teeth bonded afterwards and Dr. K even fixed a couple of flaws that were not included in the original plan, which meant a lot to me. I can’t say enough positive things about Dr. Khandaqji, everyone at the Mona Lisa Smile Dental office, and my experience as a whole. The office is always clean, welcoming and friendly. I never have to wait long and they get you in and out while still performing quality service. They get you in to your appointment on time and the check-out process is quick, also. I highly recommend to anyone looking for a great dental office! For the first time ever, I am looking forward to my next visit for teeth whitening.

Donna R. (Source: Zocdoc)


I greatly appreciate Dr. K accommodating my emergency and so quickly diagnosing and treating me. I also greatly appreciate how easy he makes it to talk to him and to make sure that I understand exactly what is happening and what steps/options I have to resolve. He and his staff are extremely professional and personable. Thank you.

AT (Source: Zocdoc)


I enjoyed being at this office. All the staff members were welcoming and friendly. Dr. K told me in detail the work that needed to be done and why. He was truly generous and caring. The office looks amazing and with improved dental equipment to make my visit easier. I would recommend this office to everyone.

Will S. from San Ramon, CA (Source: Yelp)


I read the reviews posted for Mona Lisa Smile Dental. I was in pain and booked an appointment with Dr. K. For the first time, I felt comfortable stepping into a dental office knowing I need a root canal treatment that my other dentist could not do. My wisdom teeth also needed to be removed in which my previous office did not have the proper x-ray machine to use. My dentist told me I needed a CAT scan (which he did not have). I felt like I was driving around and stuck in pain for too long. At this point I started looking for a second opinion, I wanted a dentist that would do all the treatment I needed with the right experience, Luckily, I found Mona Lisa Smile Dental. One thing for sure is, I am extremely happy with this office. The doctor is incredible and skillful. I got everything including my scan done in his office. He went over all possible options to help me decide after suggestions were given. I honestly wish to had met Dr. K before. Since I liked my experience at Mona Lisa Smile I also had my wife schedule there.

Gina M. from San Ramon, CA (Source: Yelp)


Dr. Khandaqji is truly outstanding, very highly skilled in his work and the same is with the other staff in his office. My family has been with his  practice 10+ years, and every visit has been  a truly pleasant one. Sahar and the office staff are  equally helpful, the bills have been accurate and timely, the insurance claims have been prompt.  I feel like Dr. Khandaqji is really honest about what you need without being pushy. On top of their service, their equipment is top notch and I love that they are so close to where I live. Dr Khandaqji’s dental practice is truly the best in the San Ramon area. I highly recommend Mona Lisa Smile Dental!

Silvia M. from Danville, CA (Source: Yelp)


Nervous or anxious? This is the place to go. I have social anxiety. I’d been away from the dentist’s for a while and was very, very nervous about going to a completely new dentist. My supportive family (who had already been going to Mona Lisa Smile) had to push me out the door and into the dentist’s chair, and boy I’m glad they did! As soon as I got there the friendly staff greeted me and treated me like a person first, patient second. I’m sure they could tell I was nervous, but they were kind and gentle and I eventually got over it (which is saying something!) They made sure I could understand what they were doing and even gave me some free toothpaste the dentist had ordered special for his son. That was the first visit. The second visit was even better, and I actually found myself loosening up and relaxing, even while having my teeth drilled! Amazingly they didn’t even numb my mouth–they just drilled and I didn’t feel a thing. I’m about to go in again today to pick something up, and for the first time in my life I don’t have that dreaded pit in my stomach that you get when you are nervous. The technology there is cutting edge too. They took x-rays without me even having to leave my chair, and it was over in a flash. Much better than my last dentist’s technology, which took forever. They also have a tv facing the patient that, when used with a special dental camera, lets you see inside your own mouth in real time. This allows you to see where you have cavities (if any) and where you have been brushing well. TLDR: An amazing environment with friendly people. If you are nervous about going to the dentist, don’t be–just go to Mona Lisa Smile.

Michelle M. (Source: Zocdoc)


I appreciated his honesty and expertise re; all of my dental issues; he gave me good professional opinions and the best options based on what he thought would be the best dental options for me long term. I learned a lot about my dental hx and am so glad 1800 dentists referred me to him..

Melissa Y. from Walnut Creek, CA (Source: Yelp)


Here’s a sentence I thought I’d never string together, “I look forward to my dentist appointments”. Dr. Mohammed is by far one of my favorites doctors. Firstly, the Mona Lisa office is extremely clean and up to date, which I think is very telling. Secondly, the staff is always so helpful and warm. You can tell customer service is a priority. Lupe upfront always kindly greets me and sends me on my way. I currently have FastBraces and am happy to announce that I will only need my braces for 4-5 months. So far my visits have been nothing but pleasant. One thing I really appreciate is Dr. Mohammed’s honesty and advice in making sure I get the most out of this procedure. I would definitely recommend Dr. Mohammed to all my family and friends. I know as long as I am living in the Bay Area I will always go Mona Lisa for all my dental needs.

Becca P. from West Sacramento, CA (Source: Yelp)


I’ll start by saying I have severe anxiety and am terrified of the dentist! I’ve had very bad experiences in the past and was referred to Dr K by my family after moving to the Bay Area. I am SO grateful that I made the change! Dr K and Sahar are so amazing, patient and go out of their way to make sure I am 100% comfortable. I feel confident that the treatment I am receiving is top-notch and that I am on the best hands!

Tiffany B. from Pittsburg, CA (Source: Yelp)


I have been to numerous dental offices in the bay area and after 10 years I finally found a dentist I feel comfortable with that I also trust. Dr.K is truly good at what he does and I highly recommend his services, I have gotten all my wisdoms removed by him. Going into my appointment I was so anxious because I can’t stand the sound of drilling and I have never gotten surgery before so I couldn’t believe how smooth the procedure went. I love the calm and clean environment of the office and the staff is lovely. One last thing I wanted to adress was that I had braces throughout high school and lost my retainers so basically my teeth shifted and on top of that I clench my teeth. I had fractures on my fronth two teeth and front bottom four (basically the most important teeth that is visible to everyone) . My teeth looked terrible and I was the person to not show teeth whatsoever bc It’s emberassing. I made the decision to get fast braces bc I had a friend that also got fast braces through Dr.K and I can honestly say it was worth it! My teeth aren’t just straight now but he shaped all my teeth beautifully and my fracture looks like it was never there! Seing my smile transformed I just felt like crying in my chair. Thank you Dr.K and Sahar for boosting my self confidence, can’t wait to show off my new smile.

Robert A. from Pacheco, CA (Source: Yelp)


I have been looking for a good Bay Area dentist specializing in cosmetic dentistry and was very happy and pleased after my visit to Mona Lisa Smile Dental. San Ramon dentist Dr. Mohammad Khandaqji and his staff were very friendly, the Hygentist, was wonderful! She explained everything she was going to do before she did it and was very thorough! The best part, I receive compliments about my teeth on a weekly basis and that makes me smile more!” Thank you very much and I’ll see you soon!

William G. from Hayward, CA (Source: Yelp)


For some reason my previous post doesn’t show so this is a re-post. 11/15/2011 Edit » Dr. Mo and the staff at Mona Lisa smile Dental in San Ramon are second to none. The office feels more like a spa then a dental office. I’m so glad my wife found Dr. Mo as we’ve been jumping from dentist to dentist for years… Five stars all the way!!!

Cory O. (Source: Zocdoc)


Dr. K and his staff were nothing short of wonderful! Friendly and patient, they listened thoughtfully and gave thorough responses. And no effort to upsell services! Just genuine honest care for my dental health. Also, check-in was efficient, using my pre-completed ZocDoc forms. Will definitely be making them my go-to for all dental care!

Cristina N. from Concord, CA (Source: Yelp)


I’ll start off by saying I’m not a fan of coming to the dentist. I was searching for a dentist to help me with my Root Canal and we all know how hard that can be. After several months of searching I came across Mona Lisa Smile Dental and it was the best decision I’ve made. Dr K, has done an exceptional job treating my root canal. I love the environment of the office, everything is nice and clean. He makes you feel right at home when seating you in the patients chair. During my procedure, I didn’t feel one ounce of pain, his attention to detail is very comforting. Knowing he’ll get the job done right and correctly! As soon as we got done, I still had no pain and I was actually able to go to work the next day. If you’re looking for a dentist come to Dr.K and you can thank me later! Will come again!

Anjela C. from Danville, CA (Source: Yelp)


After visiting there website I realized how outdated the technology was in my old dentist office (who is now retired) so I gave them a try. I really liked how patient friendly Dr. K was. He made the whole environment and experience very pleasant for me. I got some fillings and a deep cleaning done which stopped my gum from bleeding. I learned the importance of flossing because I saw how scary the build up looked in my teeth. I appreciate all the efforts from Dr. K, he showed me the true meaning of oral health.