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Koichi Saito, DMD, MS

Koichi Saito, DMD, MS

Endodontist

4.7 out of 5.0
171 Ratings, 59 Comments

Dr. Saito’s Biography

Dr. Saito remembers the time he spent with his childhood best friend, whose father was a dentist and allowed them to play with old burs and dental tools at his office. Since that time, Dr. Saito has been hooked with working inside the tooth with the dental microscopes and even smaller tools. Retired from the U.S. Navy serving more than two decades of service, he embraces Willamette Dental’s practice philosophy of evidence-based prevention and treatment similar to that of military medicine with its focus on patient care as opposed to production.

Now excited to call Portland his home, he’s known to spend days away enjoying its diverse selection of restaurants, hiking and snowboarding trails.


Education

  • Dental School – University of Pennsylvania School of Dental Medicine
  • Residency – Navy Medicine Professional Development Center – Endodontics
  • Professional School – The George Washington University School of Medicine and Health Science – Oral Biology

Professional Associations

  • American Dental Association
  • American Association of Endodontists
  • Connecticut Association of Endodontists
  • Marshall Baumgartner Study Group

Specialty Training

  • Cultural Sensitivity Training

Medicaid

  • Accepts Oregon Health Plan
  • Closed to New Pediatric and Adult Oregon Health Plan Patients

Languages Spoken

  • English
  • Japanese

Patient Experience Survey Results

Our patient rating scores represent an average of all responses from actual Willamette Dental patients randomly surveyed by nationally-recognized patient experience firm, NRC Health.

Learn more about our patient reviews
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Patient Comments

Patient comments are gathered from our NRC Health Patient Experience Survey. Patients are de-identified for confidentiality and patient privacy.

Learn more about our survey

Nov 27, 2025

5

Great team.

Nov 23, 2025

5

Very kind and gracious. I was also extremely impressed by the front desk employees. They were all so welcoming and very polite.

Nov 22, 2025

5

Everything was explained thoroughly even though the initial procedure I went for was not performed.

Nov 21, 2025

5

Excellent service! Thank you!

Nov 15, 2025

4

Good service.

Nov 15, 2025

5

Dr Saito (spelling?) was very good and efficient

Nov 14, 2025

5

Thank you! You are the best!

Nov 12, 2025

5

Dr. Saito was very gentle and my root canal has helped alleviate the pain I was feeling in the area. I don't remember the assistant/hygienist's name but she was also awesome!! The teams you have at your facilities are fantastic and I feel confident with the care provided by Willamette Dental.

Nov 9, 2025

5

Heide Elliot and Dr. Saito and his assistant were all extremely helpful and kind.

Oct 27, 2025

5

Dr. Saito & Jenna were great with my treatment of a problem tooth. Their service was efficient, quick, friendly, and helped me to understand what was going on with my tooth. Now I feel so much better-thank you! I wouldn't hesitate to recommend this team.

Oct 18, 2025

5

I'm very glad to have a great dental lab with impeccable customer service.

Oct 12, 2025

5

You need to shorten your wait times for specialty services. 1 month is too long to wait for a root canal, especially if you're in pain.

Oct 11, 2025

5

Dr Saito and his assistant were amazing, very professional and made me feel comfortable and at ease with my root canal. Huge kudos!

Oct 10, 2025

5

I don't want to say that I enjoyed getting a root canal because that would be psychotic, but that was the best experience I could have hoped for. He explained what he was going to do in detail and was very kind and patient. I appreciate that the block was used to keep my mouth open, as well as the use of the dental dam. Because these were used during the procedure, I was able to swallow and breathe without feeling like I was suffocating. That made me feel less anxious about the procedure. Overall, it was a great experience, and I have definitely bragged about how painless and easy it was.

Oct 4, 2025

5

Other then being so early, it was great

Sep 28, 2025

5

Everyone was very kind. They kept me informed about the work being done, why it needed to be done and what recovery would look like.

Sep 20, 2025

5

They made me comfortable and I had much less anxiety when I left.

Sep 20, 2025

5

Nothing, Excellent communication, of procedure and with the x-rays , (the) visual was very helpful.. plus explain that it may take 1-1/2 hours .. to complete. Very informative

Aug 29, 2025

3

Need appointments more readily available.

Aug 16, 2025

5

The Specialist who did my root canal and his assistant was very kind and thorough. It didn't hurt like I thought because of the specialist expertise in that area.

Aug 17, 2025

4

The dental assistant was extremely helpful and over the top, nice. The doctor was wonderful also.

Aug 16, 2025

4

Professional and friendly staff

Aug 9, 2025

5

I appreciate the staff at Willamette Dental! My only concern was the length of time it took to get an appointment with the endodontist.

Aug 8, 2025

5

He was very kind and gentle and explained everything in great detail. I felt very well taken care of

Aug 1, 2025

5

Dr. Saito did an absolutely amazing job on my root canal. You are truly blessed to have him as part of your team.

Jul 31, 2025

5

Dr. Saito did an amazing job. After a root canal, I had absolutely no pain or swelling or discomfort. Thank you.

Jul 27, 2025

5

The dentist tested my tooth and saw that I did not need a root canal. That's amazing because a lot of dentists do things that are not necessary I really appreciate his honesty and professionalism.

Jul 24, 2025

5

I was very impressed by Dr. Saito and Rachel's professional. They are very thoughtful and skilled. I swear that I slept during the treatment. Dr. Saito is so amazed.

Jul 19, 2025

5

I am beyond pleased with the treatment I received. I have been suffering in pain for so long and I felt relief as soon as the numbing wore off. I could not be more grateful.

Jul 18, 2025

5

Dr. Saito and the other person helping (forgive me for forgetting her name right now) were both very communicative and listened well to my concerns. The procedure was completed with the utmost attention to my comfort.

Jul 11, 2025

5

Life changing. Seriously. I am so very grateful

Jun 23, 2025

5

The appointment was pleasant and quick! When leaving, I said it was the most pleasant experience I had getting a root canal; and while I was being a bit funny, I absolutely meant it!

Jun 23, 2025

5

Made me comfortable even tho I was stressed

Jun 21, 2025

5

Very positive! Dr. Saito and Rachel were both very professional, the entire experience was very smooth and stress-free.

Jun 18, 2025

5

Thank you for doing good work.

Jun 14, 2025

5

good doctor and staff

Jun 2, 2025

5

Dr. Saito was very professional, very gentle with his injections, very soft with his tone. Angela, his assistant, was very informative, very gentle as well, walked me through my procedure. Their team was the best. Ten stars all the way around.

May 31, 2025

5

Dr. Saito and Rachel were wonderful. Thank you!

May 31, 2025

5

I have had a better experience with Willamette than with any other dental group. I appreciate the friendly help, the kind treatments and the focus on prevention. Lots of support and easy to talk with staff.

May 17, 2025

5

Communicated with me very well and really felt comfortable in there and the dentist and assistant were very welcoming and explained everything to me

May 11, 2025

5

I love Willamette Dental. I have always had positive experiences, despite having things like root canals. The staff and doctors are kind and great about communicating and listening to concerns.

May 8, 2025

4

The doctor made a great job.

Apr 21, 2025

5

Fast, professional, and more painless than most.

Mar 22, 2025

5

was good

Mar 21, 2025

5

Excellent dentist and assistant. It took forever to get an appointment

Mar 17, 2025

5

I had a very good experience. The staff was very professional and informative

Mar 9, 2025

5

all the staff was wonderful

Mar 9, 2025

5

They did great work and showed a lot of professionalism.

Mar 8, 2025

5

Very good job.

Mar 2, 2025

5

Thank you

Feb 24, 2025

5

The Doctor and his assistant were great! The assistant explained the procedure and offered a blanket, nice. Then the doctor came in and explained the root canal procedure, no pain at all, during or at home, my experience was overall pleasant. Never had a root canal, but was fine.

Feb 24, 2025

5

I liked Dr. Saito's calm manner. His assistant was very friendly and helpful.

Feb 9, 2025

5

I got the service from the dentist that I believe is a couple days before. He do the best he can. I really appreciate what the team to serve me while I'm on my appointment. And the time is really accurate what I did. What is it? Thank you for the service. Thank you.

Jan 25, 2025

5

Dr.and his assistant were very caring,informative and professional.. made my son who was scared and nervous feel welcome, care for and heard. I am glad we got referred to Willamette Dental to see this provider.

Jan 18, 2025

5

Dr. Saito and Angie were great. They were professional yet human in their approach to their work and communicating with me about what they saw while performing the root canal.

Jan 18, 2025

5

I was very satisfied with the customer service.

Jan 18, 2025

5

they where so nice and caring to me got a root canal and it wasn't as bad as i thought it would be at all glad i came here.

Jan 14, 2025

5

Friendly, very professional

Dec 15, 2024

5

Dr. Saito was gentle, considerate, and listened to all of my concerns. I would highly recommend him if you need a root canal.

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