Hayashi David, DDS

Dr David Hayashi is one of the best dentist I have seen. His staff is commensurate with his reputation as well. I am sad that I have moved to Union City away from San Mateo. But who cares a 20 mile drive when you get the best treatment and best service.
I highly recommend!

Best dentist I’ve ever had. Dr. Hayashi is super friendly and genuinely cares about his patients dental hygiene and personal well being. Receptionist and staff have always been very friendly and accommodating. I always look forward to getting my teeth cleaned with Dr. Hayashi & his staff =)

Dr Hayashi is a great person & very competent. I’ve been treated by him for 35 yrs. I recommend him whole-​heartedly!

I love Dr Hayashi and his staff, not only is their work excellent but they are great people too. Even my daughter who is shy and hates going to the dentist loved Dr Hayashi. You will always leave the office feeling better than when you went in.
I highly recommend Dr Hayashi and everyone in his office.

You know a dentist is the BEST when you can’t find images or ads of him or her on a web search! You won’t be inundated with post cards or email newsletters or spam. you don’t see his handsome face on billboards… he doesn’t hire models who «aren’t actual patients» or have clever attempts at slogans or logos.
Dr. David Hayashi needs no advertising! He’s got so many referrals the old fashioned way – with happy customers who look forward to their appointments with him and his equally outstanding staff – and then gush about their happiness to anyone who’ll listen!
My husband and I have been going to Dr. Hayashi since the early 1990’s and have never had any major dental problems as a result.
We love that he’s always safe and concerned about prevention of problems like cavities and gum disease etc.
He is smart and hilarious and caring. He remembers personal things about you that make you feel he really cares about you in total.
Anna –who is his office manager is also amazing. As a patient, it’s rare to go to a Doc whose staff is just as talented and caring as the Doc you’re seeing.
The hygienists are also the best – very thorough – and are good about educating without talking down.
You are THE BEST, Dr. Hayashi!

I’ve been a patient of David Hayashi for 25 years. All the comments below are true, and beyond those, David goes the extra mile. I cracked a molar on a Saturday morning, the day before a planned departure on vacation to Mexico. David was able to schedule an emergency root canal with an endodentist that afternoon, and personally served as the assistant in the procedure to get me fixed to still make my trip.
Believe it or not, I actually look forward to my 6-​month visits.

Dr. Hayashi is a great dentist! Very nice, listens, does great work, and everyone in the office is amazing. I moved away 11 years ago and still try schedule trips to get all my cleanings done in his office. It’s a great family dental office and for me worth the trip from southern California.

I’ve been seeing Dr. Hayashi for almost 20 years, so obviously I think he’s an excellent dentist. The hygenists are all chipper and very professional too. The best thing about this office is that it’s small — one dentist, a couple assistants and hygenists, and they never overbook! Dave doesn’t run around from patient to patient, he sits down with you from start to finish. I’ve never been kept waiting for an appt. in all the time I’ve been coming here.

I love my dentist. People say the dentist is never a fun place to go but I have never had this attitude. Dr. Hayashi responded to our cry for help and came in after hours to help my daughter with her tooth emergency. He put a filling in and then filed the tooth down over not just any weekend but Thanksgiving weekend. Encouraged us to come back if anything didn’t feel right. Wow. They also have great hygienists here — I have been going to my hygienist for 15 years. They have had the same friendly staff with no frustrating turnover. Anna is their receptionist and she always goes out of her way for us. They work to create a family feel in their office and always welcome us warmly. They are thorough with examinations and very flexible in fitting the kids into their schedule and working around my own. I appreciate this in a dentist. A fun place to go and we highly recommend Dr. Hayashi and his staff.

I’ve been going to David since 1998 and am very pleased with both HIS professional services as well as the staff. They are friendly, accommodating just plain good folks. My adult daughter goes to him also.

Definitely appreciate Dr. Hayashi and all of his staff. As a child, I hated going to my dentist because he did not believe in anesthesia. Needless to say, the thought of going to a dentist, as an adult, was traumatizing. It was my dad who recommended I see his dentist, Dr. Hayashi. What a relief, I must say. I believe Dr. Hayashi is excellent at what he does. Not only that, he’s gentle, kind, and honest! I am now in San Jose and still make the trip up to San Mateo!

Dr. Hayashi and his staff are caring and professional. They deliver high quality dental care at fair prices. I highly recommend them!

I found Dr. Hayashi through the one review on Unilocal.Since I am new to the area I thought this would be a good way to find a doc. Wow!!!
Dr. Hayashi and his staff are the best! Having a father-​in-​law who is a dentist I have seen both good and bad. Dr. Hayashi is so nice and really personable. His staff is very friendly and they do a great job cleaning teeth. They even took the time to give me an excellent refresher on how to brush and floss! I would highly recommend this dental practice.

Dr. Hayashi was recommended to my by my pediatric denist, Dr. Lee (another local dentist). I have now been having my regular cleanings at Dr. Hayashi’s office… and the doctor and his office staff are always friendly, courteous and caring there. I have been a patient for nearly 10 years now, and now Dr. Hayashi cleans my teeth himself. I am always impressed that I can get my cleaning done in about a half hour — so with transportation and parking… I can just take a regular lunch break for my cleaning and still have time for a bite to eat. I highly recommend this office to anyone looking for a new dentist.