I have gone to Dr. Keller for abour 30 years. His practice was sold and he is only there part time…read morenow. Debbie is still my hygienist who is wonderful. She is professonal and I feel completely confident i am in good hands. Thank you Dr. Keller and Debbie for taking such good care of me all these years. The new staff seems nice and patient with all my questions. I haven't had anything done with the new dentist, but I am hoping her skills are up to Dr. Kellers standards. She seems nice.

I have gone here for years and each time with Debbie it has been wonderful! I highly recommend…read morebecoming a patient here! Thanks for all you guys do!

I called this dental office to schedule a routine cleaning and politely mentioned that my last…read moreexperience with their hygienist felt subpar -- I paid full price for what felt like a half-effort cleaning. Instead of showing any concern, the receptionist (Mary) was immediately dismissive. She flat-out told me that if I didn't like their performance, I should find somewhere else to go. As a fellow business owner, I was shocked by the lack of professionalism. A reasonable response would have been to ask more about my concerns and consider addressing them internally -- not to push a patient out the door with sarcasm and a "good luck." This office clearly doesn't value long-term clients or community relationships. Discovery Bay is a small town, and word gets around. I'll be sharing my experience on other platforms to ensure others are aware of the level of customer service being offered here -- or lack thereof.

Dr. Sandu, her Hygienists, and office staff have been outstanding to work with over the past 3…read moreyears. My first visit was while I was 6 months pregnant and I felt I got the care and attention that a very tired/irritable pregnant woman needed to feel better :) The kind, diligent care continued over the years with my loved ones and now my 2 yr old angel. Dr. Sandu responded to my emergency call a few weeks back and she made herself available the same day, examined the issues as soon as we got there, then promptly urged us to go to urgent care (w/sincre concern), providing us w/ her suspected diagnosis. She was right about the diagnosis! Her office even called us the next day to check on our health I'm forever grateful for Dr. Sandu's care for her patients (like family) above her profits (which we hope she has plenty of). Thank you, Dr. Sandu!!

Family dentistry is supposed to be for the entire family, but their care and concern for my…read moredaughter was abhorrent. They were late for starters, 9 am appointment and we weren't in the door until 9:10. We weren't the only patients waiting. Thus none of the stations were ready. If they have creature comforts for kids they weren't out and the staff wasn't bringing them out, to the point of they couldn't find the remote for the overhead tvs that help keep the kids distracted. They refused to find the remote so no distraction for my kid. When Alex showed up he had no patience and tried to force his way into her mouth. I asked him to stop so I can console and get my kid to relax but he ignored me ( I would give benefit of the doubt but his assistant heard me and she was further away. I know because when I said stop she pulled back). I had to physically grab his shoulder. No one like touches so I understood his irritation at that but my concern was with my kid. He states that if she can't handle this then he wouldn't be able to go forward with the procedure. I asked for a little more detail so I could talk my kid through the process and it turns out that he was about to perform a procedure that we hadn't confirm!ed The office had messed up the paperwork and put down the wrong thing for the wrong day and person. At this point my irritation level is high so I questioned the professionalism of the establishment. He wasn't happy that I called out the multiple failings of this office that morning and we were asked to leave. I asked the women on staff if I was wrong for protecting my daughter. Why couldn't they take the time to find the remote to distract a little girl from the sounds of drills and suction which can be scary for a kid. They were already late so what's another couple minutes? Why rush my daughter and then get upset because she needed a little reassurance? It's hard sometimes to not believe that our mistreatment wasn't because of our skin tone. In honor of AAPI month I won't say that I will never go to another Asian dentist or doctor again but I know I did the right thing in protecting my daughter from Alex Jhang!!

Though I previously left a 5 star review at this site, after being a customer of three years I am…read morewarning all patients do not come to this location!!! I initially went in for a cavity filling, which later turned into a root canal per Jhiang's suggestion. I got referred to an endo to complete the root canal. Endo I got referred to was actually a general dentists, and could not perform my root canal. I was without any help from the receptionist who suggested and drafted my referral, and forced to find an endo on my own to finish the root canal that was already started!! Again -- i went in for a filling!! It took weeks and I was left in great pain. Now here I am six months later ready to purchase my crown and I've been informed that dr.Jhiang has "dismissed" me as a patient since January 2023. If that was the case, why was I getting texts that I was due for a cleaning? Keep in mind I've had no prior issues with this office except for the receptionist, Berta, who was rude and unhelpful with the referral process. She not only gave me a referral to a location that could not even operate on me, but did not aid in finding any other options. She was extremely rude despite me being in deep pain, and I had to find my own provider to finish the job this location couldn't complete. I was not given an explanation for my dismissal except that I missed two appointments -- I was unaware of this "policy" and I think if this office is going to make patients lose their dental providers, a warning would be nice!! AsDr. Jhiang has been nothing but exceptional, his receptionist Berta makes simple processes difficult, is extremely unhelpful and it's clear her biases have now resulted in me being dismissed by my dentist of three years -- still without my root canal treatment complete!! Wow!! If this is how Dr. jhiang's practice will treat long term patients, as even I've brought my mother to this location to receive cosmetic work done out of pocket! The lack of hospitality, communication and flexibility is ridiculous here. Glad to be gone. At least their receptionists are no longer pocketing cash payments like was occurring in 2021. I stayed through that mess just to be "dismissed" Never even heard of that. Will be finding an alternate site.

I just had all 4 of my wisdom teeth removed from here and it was the best experience ever!! They…read moremade me feel super comfortable and eased my worries, I didn't even remember feeling the IV in my arm nor falling asleep!! The best oral team ever. I will be suggesting everyone here. I am so grateful for everyone here who made me feel safe and comfortable. I am now on day 2 and have no swelling, and pain is very minimal. Thank you!!!

When you think oral surgery it's kinda scary, right? Well, let me tell you that Dr. Iranmanesh and…read morestaff make you feel so at ease that your procedure and the process is smooth and they make you feel so comfortable! I have been in the dental field for over 30 years and hear from my patients that they had a great experience with this office and Dr. Best of all great results! I have had several family members see Iranmanesh as well, and have all been very pleased. I will definately continue to refer patients as well as my friends and family!

All the staff are very kind and professional. They do not over book. There is never a long wait…read moretime.

I have been going to River Delta Dental for 6 years now. I was referred to them by my long time…read morefriend, who I called to ask if she knew of any after hour dentists that could help me, immediately. I had severe pain in one of my lower molars that had brought me to tears. Being 7 months pregnant, I could not take anything strong enough for the pain. I called Dr. Spalding late on a Saturday night. He answered and got me in first thing the next morning. He gave me the most glorious shot of Novocaine I've ever experienced. LOL Him and his staff were so compassionate and caring. He had extracted my tooth and provided immediate relief within 20 minutes. I will forever be grateful. Since that day my family of 4 have patients there. The staff are all so accommodating, kind and understanding. All of us really like Dr. Thomas, as well. My 6 year old daughter will be having her first "real" exam next month and she is so excited. I had my teeth cleaned yesterday by Summer and it really felt like visiting with a friend. I love this place. Thank you all for all you do!

Our children have been receiving care with Dr. Mendoza and Dr. Negron almost since they first…read moresprouted teeth. Overall the experience has been good in terms of regular check-ups. However once my 2 older children had issues requiring procedures (fillings or extractions), the experience has been not always so great. The main concern is that their level of pain control was sometimes suboptimal and treatments seemed rushed at times, which led my older two children to ask to see a different provider (which we arranged and the kids are both pleased with their new dentists) However our youngest child has expressed interest in staying with Dr. Mendoza-Sobel, but the office discharged us from the practice and will not allow my 8 y/o son to continue with the practice because of the fact that my older 2 children wanted to leave. I spoke to Dr. Mendoza-Sobel a few minutes ago and explained that we have nothing against her as a provider and asked if my youngest could stay....but she flat out refused, saying "it is our policy that once one family member receives care at another dentist the rest of the family can no longer be seen here" Now I have to figure out a way to explain to my 8 year-old son that he has to give up the only dentist he has ever known and go someplace new because "Dr. Leti" won't allow him to come back. I have nothing against the dentists, they are both nice enough to the children, but I am feeling a bit sad and betrayed by the practice and their ridiculous policy that does not honor patients as individuals, that seems to take an all-or-nothing approach to treating family members. I like Dr. Mendoza-Sobel and Dr. Negron and wish I didn't have to write a negative review, but I feel this could be useful feedback for them. I wish them wellness and continued success.

Awful. She said she would only fill my super-cooperative and mellow 3-year old son's tooth if they…read moredid conscious sedation or strapped him to a papoose board. Thankfully, I got a second opinion from Dr. Katsura who said that he could fill the cavity with just a little nitrous. He was 100% correct and the procedure was flawless. My son was fine and the filling was perfect. I realized at that point that there are dentists who have confidence in their ability to do work on young children and those who don't. She (like so many other dentists) either wasn't willing to do the hard and stressful work necessary to save a kid from being traumatized or didn't care. So happy we got away from her before she had a chance to inflict emotional and physical harm. The only good thing I can say is that she was very nice during the checkups.

Dr cotton is now retired, has been for a few years. Came back just to say he set the bar just for a…read moreroot canal last year and was shocked by the pain because dr cotton never made me feel any pain he was so smooth so gentle. His staff was amazing and I'm sad he's gone.

I've been going here for 10 years. Great staff, Doctor is very friendly and timely…read more My only complaint would be that they have issues responding over email and they are usually very booked so make sure you get your appointments ahead of time! Overall I love them!

Been here for about 5 years…read more Dr. Van Sicklen is a very awesome person and comes speak to you personally. The place is clean and very organized. Judy I believe is the main front desk lady, and I love her to death, with my complicated college student schedule- she was able to hear me out and take notes of the days I wouldn't be able to come in. The hygienist ladies are awesome. I had this girl who was Chinese-White, I don't remember her name but she's a gem. I always feel comfortable going there and it was always a situation of being able to socialize do your dentist place! Who would of thought! I mean they are people as well! Anyhow, I'm sadden that April will be my last visit and I hopefully in the future can return to them when I move back to California.

Dr James Van Sicklen has been my Dentist since I was 2 years old. Kelly is the hygienist that has…read morebeen doing my cleanings for the last 20 years. I look forward to going every 6 months. This office has a great team of experienced, friendly and knowledgeable staff. I recommend them to anyone in search of a Dentist!