I had my regular cleaning today and I can't express enough how wonderful the staff treats us patients. My schedule is a little tough but they are always flexible. I've been coming here for a few years and I'm always greeted with such a friendly genuine smile. Thank you Mia, Shaun, Pamela and George for doing what you do to make my dental appointment experience so smooth and painless. You guys are the best! Roger read more

This place is a scam. I strongly advise everyone not to go here for treatment. I clearly told them I did not want to continue, yet they stopped answering my calls and were unwilling to issue a refund. They have a long-standing issue with overcharging and recommending unnecessary treatments. Even worse, they sometimes schedule appointments without your permission or add procedures without your knowledge or consent, just to charge you more money or ask more money from your insurance! This kind of dishonest and unethical behavior is completely unacceptable. Please be cautious and avoid this dental clinic. read more

I love coming to Diamond Bar Smiles! My kids and I have been coming here for over 10 years. Because of their experienced and welcoming staff, we won't go anywhere else: Lisa and the front office staff are always extremely helpful at keeping me aligned with my busy schedule and upcoming appointments and reminders. They're even willing to work with me if I need flexible payment arrangements. Jorge Carlos, the X-ray technician, is professional, but also personable and funny which is important in making me feel welcomed right away and puts my nerves at ease right off the bat. I can't say enough about this guy! Shaun Reilly, the hygienist, also makes this place a great experience because he's not just easy to look at, but he's also thorough and gentle with my deep cleanings, making them feel weirdly relaxing and leaving my teeth feeling exceptionally clean afterwards. Peggy Chu, the dentist, is a boss lady that really knows her stuff! She's a great dentist. I love her because she's fast, thorough, and efficient. Yet, she also takes the time to get to know you on a personal level. I've only ever had a great experience here and I won't go anywhere else. Period. read more

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They gave me a quote for over 9,000 for deep cleaning and three cavities. Pushed for me to sign up for their dental insurance so I can get deep discount which was 3500. Also after the exam, they gave me a discount cash price for 5800$ without insurance. Now, I get a second quote from another dentist and I only have 2 cavities and do not need deep cleaning. I said are you sure??? They said yes. I only have 2 cavities and do not need deep cleaning. A regular cleaning is what I needed. Grand total was less than 800$. Asked how much was deep cleaning and it was 600$. This dentist is a total fraud. read more

I've been a patient here for a year and had a root canal with crown replacement in February. While that experience was all right (though thinking back maybe not? they documented the wrong tooth number leading to some confusion between root canal and crown), I don't think this is the dental office to stay with. I went in for a cleaning this afternoon (July). 30 minutes in the waiting room before being called in, got a polish, waited another long while for the hygienist, got the normal cleaning, asked to skip the deep cleaning. The hygienist then tells me to wait for the dentist to come by for an exam and then leaves...the office, as in, I heard him say his goodbyes to the front desk. I didn't think anything of it until 20 minutes later when Jorge (who is amazing, by the way) comes by and asks me if I was waiting for anything and he tells me the dentist wasn't coming since I wasn't due for an exam. If you value your time and want to feel like you're in good hands, the disorganization and the miscommunication in this office isn't for you. read more

SCAM ALERT! DO NOT GO TO THIS DENTISTRY! They are the worst dentistry I've ever experience!Many people complain about the front desk staff but they're only part of the problems. The priority of the dentists and staff there is not patients' health, it's money. They over book so when you get there at your appointment time, you could end up sitting at the waiting area for over an hour easily with no apologies. They would give you treatments you don't even need so they can charge you more. And the amount they charge you in the bill tend to be a lot higher than the amount you agreed on. There's no integrity and transparency in this dentistry and it's sad to see it's still there and more people are getting scammed. read more

Pamela at the front desk of diamond bar smiles dental is absolutely amazing. From the moment I walked in, she was kind, welcoming, and helpful. She explained everything clearly, helped with scheduling and insurance questions, and made the whole process stress. You can tell she genuinely cares about patients and goes above and beyond to make you feel comfortable. Pamela is a huge reason I'll continue coming back she truly makes the experience so much better! read more

We made an appointment at 1 pm and arrived at 12:50 pm. We were told that we should have arrived at 12:30 pm and the provider already left. Cannot image that they treat patient like this. read more

Don't go here if you value your time. I've been a patient here for over five years. Every time ai go in, which is about every four months for cleaning, I tell myself I need to find a new dentist. The wait is always long, they always mess up on the scheduling, every time I go in it's a new crew from the front desk to the assistants, and they always tell you to do procedures that aren't necessary. I finally had enough and left. read more

The House of Horrors in a Dental Chair; Shameless Greed with a Drill For years I came here because it was close by. That convenience was a curse. This office is not a place of healing. It is a house of horrors where pain and greed are perfected into ritual. Go in for a routine cleaning, leave with a sore, painful mouth, and a bill for the cost of a luxury vacation to Hawaii. Finally had enough and walked out today. It begins with the x-ray con. Always the x-rays. Even for a routine cleaning, they demand more radiation, as if your body exists only to feed their machines. Refuse, and the pressure begins, as if disobedience were a sin. Then comes the deep cleaning scam. Always the con. I have had periodontal surgery. My gums are healthy. Yet they circle me like vultures, whispering of urgency, inventing dangers, insisting I need endless scaling and root planing. A simple cleaning becomes a bill for thousands. It is not medicine. It is an extortion racket. (They are so greedy that one time they forgot I had periodontal surgery a few months earlier, yet STILL pushed me for a deep cleaning. Once they realized their mistake, they backed off.) And then the pain. Always the pain. The good hygienists (like Andrina) fled long ago. What remains are butchers. They carve, they gouge, they tear. When you flinch, they scold. When you bleed, they sneer. The last one, Shaun, inflicted such torment that I demanded the dentist (Dr. Chu) take over. When I recoiled from his cruelty, he shouted at me, enraged that his victim dared to resist. Imagine paying for the privilege of being brutalized and then rebuked for not suffering quietly enough. And then the betrayal. Always the betrayal. This is not dentistry. This is cruelty for profit, commerce disguised as care, greed with a drill. They care nothing for your comfort, nothing for your health, nothing for your trust. All they worship is your insurance information and your credit card number. Avoid this place. Avoid it as you would avoid plague, pestilence, and rot. For at least the plague does not smile as it destroys you. At least pestilence does not pretend to heal. This house of horrors will take your money, take your health, and take your peace. And here, the drill is not a tool of care but an instrument of punishment. read more

It was not a good experience. I waited in a chair for about 30 minutes because the dental assistant forgot about me. I was at the front talking about insurance coverage and the dental assistant was literally scrolling on his phone at the front desk. After the dental assistant came like 30 min later he put on my varnish messily as he apparently "finished applying" after like 30 seconds while I was sitting up in the chair and got it all over my lip and mouth :/. ts fr pmtfo ifykyk. And my appt was at 12:30- I came out at like 1:50 -_-. read more

To interested individuals who are looking for quality dental care, in my opinion, you have found the place. I've been coming to Diamond Bar Smiles Dentistry for over a year, and each visit has always been a positive experience. Extending my "thank you" to Shaun, the hygienist. He always provides the utmost care, answers all of my questions, and most importantly puts me at ease. This old gal gets anxious at times. Also extending my "thank yous" to Laura and Lisa who are manning the front desk. They're both cheerful and welcoming. Thanks, Lisa, for providing important information regarding my dental insurance. It is a tremendous help that I don't have to do the research myself. read more

Finally found a new dentist for myself. Everyone was so nice and friendly here . I was already nervous coming to the dentist but Pam and Lisa in the front help calm my nerves by chit chatting with me. They are beyond friendly and nice especially Pam. read more

STAY AWAY FROM THIS PLACE. If you don't want to pay thousands of dollars on unnecessary procedures. My in-law lives in Rowland Height and went to this dental office in 2024. AVOID THIS DENTIST AT ALL COSTS. They also inflated the service fees. read more

Before I go to this dentist. I read review. Very scary. I give up to make appointment. One review, one patient passed away 10 days later after visiting this office. I have to be careful because I had very bad experience with another dentist. They break my teeth. They are young doctors like internship. Nowadays, it's not easy to find honest people. I actually call and I feel already unsafe through their rudeness. Warning alert!!! read more

Let the reviews speak for themselves.. Horrible front desk staff with no patience or competence. They will put you on hold and stop answering your calls to avoid helping you. They're quick to seat you in the dentist chair before giving you any sort of estimates just to up charge and scam you later. How do ya'll sleep at night treating people this way and cheating people of their money? Glad my family dodged a bullet by canceling their appointment. read more

The WORST dental experience here. 1)Appointments was rescheduled twice because they told me the dentist leaves early. Each time notified me less than 1 week. Why schedule patients at the time there is no dentist. I understand if it happens once, but can't understand it happens twice in a row for the same appointment. I had to keep requesting time off from work!!! 2) front office called me at 1:15pm stated I have appointment at 1pm. Actually I booked 2pm appointment for 2 kids, it confirmed by text messages and email. Ended up can only bring 1 kid in and reschedule another appointment. 3) on the day of the appointment and arrived the office, front desk told me I need to pay $40 for cleaning and check up with insurance, which I never paid before and never changed insurance. I asked why I was not informed and why I didn't need to pay before. They said insurance change, but I never changed my insurance. 4) Force patients to get xray so they can get paid. If you refuse, they don't want to see you, or the Dr. Chiu gives you attitude. My kid had full mouth xray in a different office in a year, so I don't want her to get more X-rays. They requested me to show them the X-rays and I had to call the other office, luckily was able to show them. After the assistant polished teeth, she said we can leave, I asked "the doctor will not check her teeth?" She said doctor said you only wants polish teeth, do you want her to check her teeth? omg of course! Even if we don't want xray, I never said don't check her teeth. After another 15 minutes, Dr. Chiu came in, roughly looked at her teeth for 10 seconds, and told my kid "hurry up open big!" I was upset. She didn't say anything about her teeth, just said "all done". I asked her a couple of questions about her crown, she was not willing to answer me and gave me an attitude. I have never seen a doctor like this, very unprofessional, only thinks about money, not the patient, maybe just because we refused X-rays and they don't get paid more, she doesn't even want to look at you, then should not bill insurance for check up! This place is definitely the worse dental office I have been to, will never come back. read more

First of all, this business is not honest. They do unnecessary treatments on patients. Deep clean every single visit? laser treatment every other visit? And unnecessary oral surgeries they try to talk patients into so that can charge more. I didn't realize how many unnecessary treatments I've had there over the years until I finally switched to another dentist and all of a sudden, my teeth are mostly good - not as bad as what diamond bar smile dentist told me at all! Basically every time you go there, they make sure you don't walk away without spending a couple hundred dollars minimum even after insurance. As a business, I understand revenue is everything. But as a dental clinic, patient health should be the top priority not the money. The front desk lady talked me into getting a credit card with "0 APR" so that they can give me an oral surgery that costs $1600+. The credit card was another scam, ended up having 32.99% APR - how wonderful. I'm considering suing them. it's a shame that diamond bar has this kind of business around. Diamond bar people deserve better. read more

I wish I could give it zero star. Very rude front desk. They tell people to sign on the pad without showing the actual documents. They charge for no show appointments after 15 minutes, but how about when they keep customers waiting for over 45 mins l. They should pay the customer too for the long wait. Whoever wants to come to this office, better think twice. read more

This office was my dentist for 10 years until I was laid off with no fault of my own. They refuse to take my insurance through Covered California though they will accept other employer plans under "CalDental" even Medicare. How is this fair? Every medical profession takes an Hippocratic oath to take anyone regardless of income and status. The office manager refused to give me their parent company and phone number. More importantly I have struggled with patience during teeth cleaning but get pestered on allegedly for me not doing my part of brushing my teeth daily. Be warned they have lost a customer like me who is forced of the inconvenience of having to find another dentist. Such a sad commentary. read more

Don't evver go here! The Biggest liars and thieves in the field by far! Tried to pull teeth drill posts and add crowns, the 2nd dentist looked over the x-rays and found no cavities at all, of course they wanted to proceed that very day. Shame on u smile dentistry. read more

Very nice staff. But I waited about 20-30 minutes in the chair. they tried to give me producers on two cavities about 1000-1500 a tooth that i didn't have. i went to another dentist and they said i have no cavities at all. would not recommend very upsetting they lied to me. read more

The office manager, Lisa, is very intelligent and so personable that she remembers the names of each and every patient! Shaun R. is very considerate and gentle when he does my cleaning! With such a nice staff, I don't mind going to the dentist! :) EH read more

My experience with this office very pleasant , front office staff very welcoming and professional. I am satisfy with Dr Chu's treatments and assistants are all very friendly. Another reason I stay with this office because they are one stop for all specialties. I refer families and friends to come to this office for any dental care. It's hard to make everyone happy but I am happy and satisfied. read more

My dad was a patient of this dentist. He was recommended by the dentist here to extract all of his teeth and passed away 10 days later. I am not saying they caused my father's death but it's a very strange coincidence. The dentist staff allowed my dad to drive home after the procedure in immense pain. They did not give him a prescription ahead of time to ease the burden or pain until 4 hours after this procedure once I called. The front desk staff seemed so careless when I was trying to obtain the prescription or when I asked additional questions. I have never seen my dad in such pain! He could barely eat and the teeth they had given did not even fit for him. When I called the staff to get more information I was never returned a phone call. I am writing this review to warn you to get a second opinion before a procedure and help someone elses loved one... read more

I've been coming to this office for years and have always received excellent care. Thank you to Dr. Tammy and her assistant Jorge for my most recent visit and taking care of my broken crown... my fault for eating that questionable gummy bear on Halloween. read more

Everyone was polite. However I received about 20 more x-rays than I needed. A single image needed to be repeated 4 or 5 times before it was acceptable. I am unsure if this was the technician's fault or if the X-ray machine was not working properly. Further, Dr. Tammi Chu said I needed a crown. When I sought a second opinion regarding this, the dentist (Dr. Lee) said the tooth was perfectly fine. Further, this second dentist said he worked there about four months and he intimated that he was very happy to leave. There is a push to schedule more appointments. They want you to make an appointment for some other procedure before you can get out the door and are still in your chair. I told several staff that I was changing dentists and leaving Diamond Bar Smiles because of the above mentioned reasons. However a year later I am still getting calls that a cleaning has been scheduled for me without my permission. There is pressure to get a deep cleaning at Diamond Bar Smiles which is not necessary and a money grab to get more money from my insurance company. I have never been to a dentist office with such a strong goal to make more money. It is very obvious and you will realize this in your first visit. I recommend that you go elsewhere for your dental care. read more

Predatory practice. Performed 30k + worth of work while knowing it was not approved by insurance and did not let my parents know. Also performed certain procedures on the same day when insurance said it has to be done on different days to be covered. read more

Why is it so hard to find a good dentist? The dentist who performed the work are great. It's the front desk receptionist that you are have be careful. They over charge and don't know what they are doing! The quote they gave me was expensive and I called my insurance. I had to go in and ask them to revised the quote based on what my insurance gave me. Super shady or they need to retrain them. While waiting for them to revised the quote, another customer came in for a regular cleaning. The receptionist was saying it would be $40. The lady just looked at her and said no. The reception was like okay, regular cleaning is $0 but if you wanted with fluoride cleaning it would be $40. That is when I knew I needed to look for another dentist. I needed my full mouth xray emailed to me so I can show to my new dentist. After 3 follow up phone calls with them to email me my xray they still didn't do it. I had to go in and asked for it in person. Finally, they emailed it to me. BEST TO AVOID THIS PLACE. read more

If there's a negative star, I'd give it. BEWARE!! YOU ARE FOREWARNED!!!! This is a shady operation. Do not trust this establishment for an honest practice, and simply don't trust them to take care of your dental health. Or you could, and pay a stupid amount of money for something that would have been a fraction of what these people charge. And be lied to and pay for unnecessary things to be done on your teeth. Plus, whatever the "membrane" they charged, and put on my mom's tooth fell off after TWO days!!!!! Before the procedures, my mom advised the front desk that she has insurance. Multiple times the front desk simply said, "we can't find you in the system" despite the fact that my mom had her insurance card with her and everything (normally, any medical establishment will call the insurance company to confirm for the patient, this clinic doesn't even bother, because they know if my mom has insurance, it will be a different ball game for them. Perhaps, they won't be able to cheat the stupid amount of money out of my mom directly then). My mom expressed that it is too expensive for her to pay out of pocket for the whole thing they proposed, they then sold her some sort of payment plan to cover the exorbitant amount they charge for a simple tooth extraction. They did not explain to her which are covered, and which are not covered by insurance, and simply wanted her and can't wait for her to pay for EVERYTHING out of pocket (necessary and unnecessary items). I called this dental office multiple times afterwards advising them that I checked with the dental insurance, for my mom, and they said yes her insurance is fine, she has the insurance and the items are supposed to be covered, or from the looks of it, shouldn't be charged egregiously. The front desk always had some sort of excuses why they didn't call back, or why this has not been investigated and looked at. I had to call the insurance company to file a grievance. Mind you, that back and forth, it's a total 3-month ordeal dealing with this to get to the bottom of it. Meanwhile the credit card bill kept coming. In the end, my mom is entitled to $$$$ back, which was how much this dental office over charged her WITH insurance. Find another dental clinic and save yourself from these greedy and immoral people. They are out for your money BAD! read more

This dental clinic is extremely unprofessional and overcharges. Every treatment room is filled with advertisements for white material crowns. For new patients, they repeatedly confirm that there are no fees but then perform a large number of X-rays, about 4-5 times more than my previous dentist. Regardless of the situation, they always recommend crowns. The quote is in the tens of thousands, and the unprofessional front desk told me that insurance would cover most of it. After I pointed it out, they changed their statement. They kept insisting it was free, but kept pushing for copays and also billed my insurance company. A complaint has already been filed. read more

If you are looking for a dentist that has good bed side manner. Dr. Peggy is not your person. She started to warm up at the end, but by that time it was little to As much as I wanted to give her another chance, i dont think thats possible. Read the reviews below. They are losing the best dentist they ever had. Dr. Addison. and Hygienist Adrianna. read more

I had always came here since I was a teenager and I'm in my second year of college. Everything was great including removal of my wisdom teeth and this is my go to dentistry even when I moved out of the town. Shout out to Shaun who is a new doctor that I met two days ago in the office and he gave me one of the most comfortable dental cleaning and he was really really nice. Highly recommend if you are a new or old customer. read more

Despite the previous reviews, I had a great experience here. I've had anxiety about visiting a dentist for years and staff here was able to sit down and explain the different procedures they are recommending me which really calmed me down. I do agree that the pricing is a bit high but I did receive excellent service here. read more

Run away! This is a follow up on my prior review! Scammers! My copay according to my dental plan should have been less than $375, they charged me $990.00! And no they did not make a mistake! Asked 5 times for an itemized bill for the procedures done along with copay required and got nothing! They all know it is a scam!!!! STAY AWAY! read more

Update to my review below. Received a $239 bill from my insurance!!! Apparently they did an expensive X-Ray without any insurance pre-auth, explanation or permission given to me. I came in for a routine cleaning and they did the special X-Ray without any explanation, tried to sell me a $200 saliva test which they said is needed to do the cleaning, when I declined they said they had to reschedule. Never came back and went to a different dentist to get my cleaning done (No Problems with the new dentist). AVOID THIS PLACE as these people are not trustworthy as you can see from other reviews as well. read more

This dentist no longer works at this facility. New staff wanted to say I needed this expensive treatment, cause I brushed my teeth to hard. I barely brush my teeth. Told them I would need to reschedule and high tailed it outta there and never went back. Brush to hard. Sheesh!! read more

My family and I were customers since they open this practice, approximately 15 years. Well! They lost 3 customers! Since they do shady billing! It was great 15 years ago. Very customer service oriented, front desk personnel were amazing, they took the time to explain in detailed your cost and what your insurance covers. Now new staff, don't know what they are doing, rude and they want you to do their job! I don't do billing! I am paying for their services! You do it! Don't trust them when they tell you the amount of money you pay out of your pocket. Ask for it in writing! Don't get work done without verification of your insurance. They are not loyal to their clients. I will NEVER GO BACK TO that practice read more

I thought I did 2 fillings but apparently I did 3. Don't come here if you: -Aren't a baller -Don't know what the hell is going on with your teeth -Don't know anything about dentistry -Have a hard time saying no to pushy sales people -Don't check what you're signing :( So I just got the bill for my dental work as financed by Smile Generation Financial, which was offered to me as an alternative when I said the fillings were too expensive (so I thought, eh why not drag out payments for 6 months interest free rather than stand here for another 20 minutes listening to these pushy people try to convince me? Too good to be true? YES!). The bill had a pretty number of $510. I called Diamond Bar Smiles Dentistry to find out why in the world 2 fillings cost $510. Their response, "Oh you signed for 3 fillings. Yes it is $510." I guess that makes it better. Especially because that is the interest-free cost AND the cost after the in-office insurance of $96 / year. On a plus note, that shows how numbed out I was and how quickly the fillings were done. So far, my $59 teeth cleaning has turned out to be: $59 teeth cleaning $96 in office insurance $154 for a shot of something $510 for 3 fillings for a grand total of $819. This is why I don't like the dentist. It's not the physical pain, it's the emotional. Note: Take heed to the fine print attached to the $59 teeth cleaning offer -- "in absence of periodontal disease". Well apparently anyone that goes after this offer will find out from Diamond Bar Smiles that they have some form of periodontal disease. read more

Diamond Bar Smiles Dentistry - A bill for 3 fillings - General Dentistry Near Me - Diamond Bar, California

This use to be my favorite dental office until the doctor changed. DR. PEGGY CHU, has been my worst experience. She's rude, lacks bedside manor and is petty (attempted to bill my insurance for Invisalign that I paid for in full before she was at this office. I will file a fraudulent complaint against her). Her attitude needs a definite adjustment and it doesn't appear she enjoys what she does. The office staff and dental assistants are helpful and courteous, unfortunately, Dr. Chu is there, so my husband and I will no longer patronize this office. read more