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    Jason Koh II DDS

    4.6 (16 reviews)
    Closed • Closed

    Services - Jason Koh II DDS

    Cavity treatment

    Dental exams

    Tooth filling replacement or repair

    Jason Koh II DDS Photos

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    Review Highlights - Jason Koh II DDS

    “The hygienist Ashley is so gently yet thorough and keeps my teeth so clean.”

    Mentioned in 3 reviews

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    Newcastle Dentistry - The design of the waiting room is amazing! Love the color scheme and comfortable seating for patients! Two thumbs up!

    Newcastle Dentistry

    4.2(77 reviews)
    2.3 mi

    Ok so let me start off by saying, if you want an amazing dentist office, then you need to come to…read moreNewcastle Dentistry. My husband was scheduled for 4.5 hours and needed quite a bit of work. Well, between Dr Strange and his assistant, and the rest of the friendly staff that just come to say hi and check in, thank you for another amazing experience. To the patient next to my husband, who came in immediately complaining to the hygienist about being 10-15 minutes late,stating that because they were running 10 minutes behind, YOU were going to be late for your next appt. I would like to say to you, that if you are reading this, and it was you at Newcastle Dentistry, it's not fair for you to treat the staff so poorly. People need to realize, things don't always work out where EVERYTHING is on time and by NO MEANS does any dentist office or medical office for that matter, have only one patient and everything runs smoothly. It just doesn't happen. The Hygienist was so kind and patient with you but most of all, the MOST professional but you still treated her terribly. So to the hygienist, I don't know your name but I apologize for this lady and the way she acted. Stay amazing! I have worked in the medical field for 23 years and because I cannot speak up for myself when patients get upset with my place of employment, I will speak up for the staff, at Newcastle Dentistry. Next time you come to an appt and you are that upset, maybe you should just reschedule, rather than go off on someone who is only trying to do their job, because emergencies happen and things come up and just because you have an appt time, that is an ESTIMATE. Next time you are running 10 minutes late because of things out of your control, maybe they should just tell you that your appt has been cancelled. They don't get paid for you to go off on them and do NOT deserve that type of treatment. So next time, think before you speak, if you don't have anything nice to say, then don't say anything at all and lastly... TREAT OTHERS HOW YOU WANT TO BE TREATED!!!!!

    I'm on the hunt for a new dentist after my last dental experience left me with an infected mouth. I…read morethought I would give Newcastle Dentistry a try. Bluntly I found Newcastle Dentistry warm and cold. Dr. Rosanna and her dental assistant were the warm aspects. I thought they were great for the little time they saw me. I was a bit surprised to find their x-ray machine was a bit inadequate. The last office I went to was able to x-ray all my teeth. This one's machine was unable to. The dental hygienist was cold. At first she was friendly, even complimented my teeth, but then seemed to become very irritated when I told her I rarely flossed. She went from friendly conversation to being very short and snappish. I also didn't care for the layout. It basically is the assembly line format - a line of chairs separated by dividers. I could hear everything going on around me, all the drilling, all the motors whirling. It did not comfort me. Upon checking out I was reminded how much I missed my old dental office's office staff. They weren't great at anything else but I always left with a cheery goodbye. The receptionist here barely said two words and it was enough that I opted not to schedule a follow up appointment.

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    Newcastle Dentistry
    Newcastle Dentistry
    Newcastle Dentistry

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    Coal Creek Dentistry - Beautiful place for aqua the entry.

    Coal Creek Dentistry

    4.2(9 reviews)
    2.3 mi

    Dr Cao was so kind and caring throughout my dental treatment. She did an excellent job and made me…read morefeel very comfortable. Even after my treatment was finished,she still took the time to text me and check on how i was doing.I truly appreciate her kindness and care.I'm very happy and grateful to have had Dr Cao take care of me.Thank you so much, Dr Cao! Truc Nguyen

    ### Springtime Between the Teeth: A Record of Painless Care at Seventy-Three…read moreThis clinic has stood for thirty-two years; for twenty-three of them, it has been my anchor. Twenty-three years--more than half of my adult life etched into a single dental chair. When the original doctor retired, I wondered if that long-held bond of trust could be sustained by a new hand. The hesitation dissolved at the threshold. Anetta, at the front desk, exuded a warmth that dismantled my psychological defenses. It wasn't mere politeness; it was a rare authenticity, treating a twenty-three-year veteran not as a patient, but as an old friend. In the operatory, Sarah and Helen moved with the rhythmic precision of a chamber orchestra. Their coordination was silent and absolute--instruments clicking faintly, every motion a mastery of time. Then came Dr. Christine Cao. Taking over a thirty-two-year legacy requires more than skill; it requires a certain steel. As the high-speed drill whirred--that sharp, cicada-like scream that usually pierces the soul--I felt absolutely nothing. Dr. Cao's touch possessed a surgeon's decisive crispness. Two hours of labor were collapsed into one through sheer, seamless expertise. Though I am seventy-three, I sat there with the lightheartedness of a young man. This youthfulness isn't about erasing wrinkles; it's about a refusal to grow timid. I observed their professional dignity and found a strange resonance. I am a hard-boiled man who has weathered the winds of the Inner Mongolian plains; I recognize quality when I see it. There was a fragmented half-tooth I could have ignored, but looking at this team, I made a choice: I will return next Tuesday to finish it all. No delays, no lingering tasks. Life is too short for hesitation. This cross-generational trust has found its continuation in Dr. Cao's fingertips, proving that as long as one maintains a sharp eye for life's details, vitality never withers.

    Photos
    Coal Creek Dentistry - From the left doctor Christine Cao dental assistant Helen and me.

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    From the left doctor Christine Cao dental assistant Helen and me.

    Advanced Dentistry - Cosmetic dentististry

    Advanced Dentistry

    4.5(72 reviews)
    0.4 mi

    I can't say enough good things about my NEW dentist! This is the first time I've ever cheated on…read moremy old dentist... and honestly, it was GREAT! Look at this transformation! She replaced the old yellow-looking composite with a beautiful new composite and reshaped some teeth that were too long, giving my smile a much more balanced and natural look. I'm honestly so happy with the result! She did an amazing job, was so detail-oriented, and made me feel comfortable throughout the process. And on top of that, she gave me a great discount, making her work very affordable. Sorry to my old dentist, but I cheated... and I'm not even sorry! I absolutely love my new smile! thank you advanced dentistry in Renton.

    I've been a patient here for the past couple years and I'd gladly recommend them to other people…read more It's a smaller office, but that also reflects the more personal care which is valuable than we know. The saturday flexibility is also extremely valuable when you're stuck with a M-F job. I've had cleanings, invisiline trays replaced, and gum grafts done. I'm eventually going to get my first root canal here too, which is nerve wracking, but I feel pretty assured doing it here.

    Photos
    Advanced Dentistry - Top internationally recognized dentist and AGD Master LLSR award winner | Advanced Dentistry Renton | Dr. Rochelle Nguyen DMD

    Top internationally recognized dentist and AGD Master LLSR award winner | Advanced Dentistry Renton | Dr. Rochelle Nguyen DMD

    Advanced Dentistry - Fresh new paint on our spacious Renton dentistry | Advanced Dentistry Renton | Dr. Rochelle Nguyen DMD

    Fresh new paint on our spacious Renton dentistry | Advanced Dentistry Renton | Dr. Rochelle Nguyen DMD

    Advanced Dentistry - Don't settle for less than the best equipment and a DMD certified Dentist | Advanced Dentistry Renton | Dr. Rochelle Nguyen DMD

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    Don't settle for less than the best equipment and a DMD certified Dentist | Advanced Dentistry Renton | Dr. Rochelle Nguyen DMD

    Family Dental Care of Bellevue

    Family Dental Care of Bellevue

    4.6(47 reviews)
    4.6 mi

    I've seen both Docs. They are great! This is a first class group. Highly recommend!…read more Dan

    Sixth months of pain thanks to this office's negligence…read more Going to this dentist resulting in me probably needing a root canal. I came in to get some simple fillings done, and I'm now saddled with hundreds of dollars of bills, to pay for procedures that screwed up my teeth. The doctors left (with full knowledge) overhangs on both of my fillings. This means that whenever I flossed, the floss would catch on the fillings and pull on them. The dentist informed me that this was normal and I would just need to pull through my floss for the rest of my life. After a month of pain, I went back to ask why the fillings still hurt. They took x-rays, shaved one of them down a little bit, and told me the other was fine and I should go home. I developed hot and cold sensitivity. I finally visited another dentist with 30+ years experience. I've now learned that purposely leaving overhangs on fillings is absolutely not normal, and that what they've done is careless at best. I saw the x-rays myself this time, and you can clearly see the sharp, jagged overhang's that were left after the fillings were put in. I've also learned that One of the filling simply broke because of the way that they left the overhangs. Until I've had over $700 in dentistry bills, and six months of dismissed pain. I know I will likely need a root canal in one of the teeth, and I needed to get both fillings replaced. This place looks great on the outside. The customer service is excellent. However, I would caution anyone against blindly trusting that this office knows what they're doing.

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    Family Dental Care of Bellevue
    Family Dental Care of Bellevue
    Family Dental Care of Bellevue - Digital X-ray machine

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    Digital X-ray machine

    Factoria Family Dentistry

    Factoria Family Dentistry

    4.3(11 reviews)
    4.6 mi

    I was a 10+ year patient. It's taken me time to post a review mostly because I didn't want it to be…read morea knee jerk reaction to the latest issue (of multiple) that have come up. - There has been a steady decline of customer assistance with both front office and dental assistants over the past 5 years. - My appointments are never on time. My hygienist "calls me in" after my appointment time, which then ensures a later end to my appointment. This is highly inconvenient for my work calendar. - I also don't appreciate being called after other patients who have checked in after I have. This too happened on the last 3 cleanings I scheduled. - Joy; office manager is quite unhelpful. I shared a financial hardship and attempted to explain my concern with the necessary procedure. She was implacable and resistant to offer solutions. After realizing there would be no movement or help from the office, I moved forward with the procedure and its original cost. I paid in full that day. Imagine my surprise when the office billed me an additional $78 post visit. That was the last straw. I had already paid over $1000; of which they had itemized for me and Joy said was non-negotiable. That should have been the final bill. I have already schedule a cleaning with another practitioner. It was time to move on. But the "nickle and dime" additional bill was my limit. I had to post a review. I was a long standing client. I actually *paid* my bills in full. If this is how they have treated me, I worry for other individuals in similar or more challenging life stages. I don't expect recompense. I just hope if you have read this fully, you are aware. There are *many* other general dental practices in the area. I suggest you look elsewhere for dental care.

    I HATE THE DENTIST WITH A PASSION!!!! I generally don't have bad days, but going to the dentist is…read moregenerally what I consider a bad day, and I have good teeth..... I cringe so badly and press my hands so tightly that my palms came close to bleeding from nail marks at the end of the session. But thanks to Factoria Family Dentistry and Drs. Kang and Nishimura and their crew, I have felt a lot more comfortable going to the dentist. They have made my dreaded visits to the dentist a lot more manageable. Mel, the girl at the front desk is very sweet and never fails to call with a reminder. They work great with our insurance company and both Dr. Kang and Dr. Nishimura are fantastic. They are absolutely great in explaining everything to you in every detail. They also have great hygienists who are patient and always try to keep you calm and collected. Our entire family goes to this clinic and we would not go anywhere else. The office is nice, there is a huge window with trees from every room, so nice environment throughout the experience. They always give you great supplies after and they work great with the insurance companies. And they have headphones available upon request as well. If you are looking for a good dental clinic, you should give this one a try. They are also conveniently located in Bellevue with ample parking.

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    Factoria Family Dentistry
    Factoria Family Dentistry - Factoria Family Dentistry

    Factoria Family Dentistry

    Factoria Family Dentistry

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    Da Vinci Dental - Distracting features of our patient's smile were eliminated with our World-class Veneers which allowed a new harmonious flow of beauty.

    Da Vinci Dental

    4.9(158 reviews)
    7.9 mi
    19 years in business
    Free consultations

    I shopped several cosmetic dentists for my porcelain veneers before deciding on Da Vinci Dental…read more Dr. Beau "got me" right away. I wasn't interested in the 1000 watt smile. He heard what I wanted and got to work designing based on my preferences. It looks like me, but better. Even though getting veneers is a multi-step process, it moves right along. Both Dr. Beau and Dr. Andrew worked hard to get my teeth just right. I truly feel like they care and were doing their very best to make sure I was completely satisfied. No egos, no gimmicks, no new fads. Just great teeth! And their front staff is awesome, too!

    I had an incredible experience with Da Vinci Dental in Bellevue from start to finish! The entire…read moreteam, including the office staff, is incredibly nice, welcoming, and professional. One of the first things I noticed is how efficiently they run--they always start right on time, which is so rare and highly appreciated. The doctors are true perfectionists who settle for nothing less than flawless work. They took the time to ensure the results were exactly what I wanted, and the pricing was very reasonable for the exceptional quality of care provided. On top of that, the logistics are seamless; parking is completely covered and handled, taking all the stress out of the visit. As a fun bonus, the clinic is located in a beautiful building with a fantastic French bakery just upstairs. The efficiency of their process is unmatched. The turnaround time from my very first appointment to getting my final porcelain veneers took just a few weeks. If you are looking for top-tier cosmetic dental work, I cannot recommend them enough!

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    Da Vinci Dental - Words can't explain the impact this new smile will have on her life. She can now explode with confidence when she smiles, speaks and laughs!

    Words can't explain the impact this new smile will have on her life. She can now explode with confidence when she smiles, speaks and laughs!

    Da Vinci Dental
    Da Vinci Dental - Our handsome patient Diydan with upper and lower porcelain veneers

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    Our handsome patient Diydan with upper and lower porcelain veneers

    Jason Koh II DDS - generaldentistry - Updated October 2026

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