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Brian S Lieu, DMD

General Dentist

4.3 out of 5.0
491 Ratings, 112 Comments

Dr. Lieu’s Biography

Dr. Lieu was a Willamette Dental patient in middle school and remembers how much he admired the dentists who cared for his teeth. A few years later he had the opportunity to shadow a neighbor who worked at the practice, and he saw firsthand the compassion providers felt for their patients. Those experiences combined with the company’s philosophy inspired his decision to become a dentist and join the practice. He likes to begin his days with a cup of coffee, and take a few moments to be appreciative and mindful.

When he’s not behind the chair, he enjoys time with his dog and close family. A Portland native, Dr. Lieu attended Clackamas High, Oregon State, and OHSU.


Education

  • Dental School – Oregon Health and Science University School of Dentistry

Specialty Training

  • Cultural Sensitivity Training

Medicaid

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

Languages Spoken

  • English

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 21, 2025

5

Great experience

Nov 17, 2025

5

The appointment was perfect!

Nov 14, 2025

1

The dentist was rude and condescending

Nov 14, 2025

2

The girl that did my x ray was great. Dr Lieu was not empathetic and he was rude and callous. Not a dentist I ever want to see again. When someone is in pain try to be more considerate. He seemed to be irritated I couldn't bite down and he showed me his perfect bite. I'm missing teeth I don't have a perfect bite.

Nov 8, 2025

5

Thank you for your service.

Nov 7, 2025

5

The visit was pleasant and fast. My son really had a good time.

Nov 3, 2025

4

It takes forever to get an appointment with you folks!!! And some employees there are very unprofessional or have been.

Nov 2, 2025

1

I had a horrible experience. I've never felt so ashamed or so belittled at any appointment I've ever been to in my life. I was so disgusted with the way I was treated. Not to mention, they said they can't do anything about my teeth now because it's been so long. Well, that's only because that's how fast you guys could get me in.

Oct 20, 2025

5

Very pleased with the service

Oct 24, 2025

5

Thank you for your service. My kids loves coming over there, because they felt your love and kindness and the hospitality that you gave them.

Oct 12, 2025

5

Thank you so much

Oct 4, 2025

5

Absolutely the very best care. Thank you.

Sep 29, 2025

5

I had my daughter with me and they engaged with her as well and made everything go so smoothly

Sep 28, 2025

4

I appreciate the appointment was on time and went faster than I expected

Sep 27, 2025

4

The dentist showed compassion and concern for my child's dental health.

Sep 13, 2025

5

They made me so comfortable especially during the time of the shot. Continued to ask if I was going good.

Sep 12, 2025

5

Great reception and incredible dental care!

Sep 10, 2025

5

Miranda provided the best cleaning that I have received in years. Dr. Lieu is honest, professional and provides genuine advice in order to achieve healthy goals. What a great clinic!

Sep 8, 2025

5

Thanks

Sep 6, 2025

5

My daughter had a good experience came out happy with a smile thank you to the whole team

Sep 6, 2025

5

Great customer service, they treat myself and my daughter like we are family..thank you for such wonderful support and help

Aug 29, 2025

5

Great job they did thank you

Aug 30, 2025

5

I enjoyed the people there a lot, and they helped me understand what was going on. The only downside has to be the MONTHS of wait time to get an appointment, and now I'm going to have to wait more months to be able to finish getting help with cavities.

Aug 28, 2025

5

I have been a patient at Willamette dental 2006 and I have never had a bad experience. Thank you!!!

Aug 23, 2025

5

Dentist barely looked at my tooth

Aug 22, 2025

4

The dental assistant was wonderful

Aug 22, 2025

2

Everything was good

Aug 10, 2025

5

Yes, he was very good. He took care of me really good. Did it quick and a good job. I really liked him. He was really a good doctor. Thank you. Bye.

Aug 9, 2025

5

Thanks to the nurses and doctors who treated me kindly.

Aug 11, 2025

1

I've been going here to Willamette denta

Aug 2, 2025

5

This was the first time I have ever had a positive experience getting a filling. They were so quick and the whole thing was painless

Aug 1, 2025

5

The dental assistant we worked with that day was phenomenal. She was so kind and showed a lot of love for her work. She worked very well with my son who has special needs. The dentist was also very professional and kind.

Aug 1, 2025

5

You do your job very well.. I love to bring back my kids here..

Jul 30, 2025

1

My dentist was very rude. He would not listen to me. He talked over me. He made me feel guilty that the fact that my cavities had spread, he didn't listen to the fact that I had other medical issues that happened in the prior years had been there. It was the worst experience I've had in decades. He's a horrible dentist. I don't know what his problem was. Even the nurse felt some kind of way after he left the room. Someone should talk to him.

Jul 26, 2025

5

Very good, friendly

Jul 23, 2025

5

My visit was good, was in and out in a timely manner.

Jul 21, 2025

4

My appointment time was a month out. That's the only discomfort that I experienced.

Jul 20, 2025

4

When a person has a appointment make sure they call way ahead time to cancel so I wouldn't have to drive to the office for nothing

Jul 19, 2025

5

I slept all the way through it

Jul 19, 2025

5

They where easy to talk.

Jul 19, 2025

5

Receptionist are kind.

Jul 19, 2025

5

So far it's ok

Jul 17, 2025

5

Very good

Jul 17, 2025

5

Wonder people took great care of me

Jul 5, 2025

2

Dentist had a smug and arrogant attitude. I feel my family is treated differently than others at every visit.

Jun 27, 2025

4

The staff there are very nice and helpful. They listened to my concerns about my grandson's dental needs. They were all very professional. Thank you

Jun 27, 2025

1

Good job

Jun 27, 2025

5

Thank you

Jun 23, 2025

5

Fast and painless tooth extraction. Very professional.

Jun 22, 2025

5

Prompt and Kind

Jun 21, 2025

5

Very professional

Jun 21, 2025

5

They were very great, appreciate everything they've done for me. She explained everything about my mouth and my teeth and my deep pocket and stuff. So I recommend my family and friends to go there, but they don't have no open for them. So thank you.

Jun 15, 2025

5

I wish I had asked to see the X-ray, I'm wondering how an infection would look. The teem I had was a 10 !! They made my day. Specially the technician !!!! Her calming presence REALLY helped me be relaxed.

Jun 18, 2025

5

The hygienist was great...very polite and informative of what I could do to help my gums. I had a pleasant experience.

Jun 11, 2025

4

The only downside is how long it takes to get an appointment. Everything else is great

Jun 8, 2025

5

The dentist and assistant did a great job!

Jun 6, 2025

5

The hygienist was very friendly and kind. I enjoyed my dental evperience.

May 31, 2025

5

The staff was absolutely excellent, very knowledgeable, very, very friendly, in a great mood. The doctor was very, very good. The procedure was painless. Later in the evening, I did not have any pain or anything. Thank you very, very much. It was a very good experience. Definitely have already told other family members and friends. Goodbye.

May 31, 2025

5

The staff and technicians have a perfect balance of professionalism and friendliness!

May 22, 2025

5

Nice reception people and great work by hygienist and evaluation and recommendation by dentist.

May 11, 2025

5

Thank you for accommodating my dental needs. I am trying to get over my issues with drills in my mouth, but it's a slow process

May 11, 2025

4

Personnel are pleasant and helpful. Very great service.

May 10, 2025

5

Going slow very calm very understanding what's going on with the procedure and also very nice and gentle

May 9, 2025

5

Thanks to the workers and doctors who kindly treat us.

May 9, 2025

5

They are very attentive, I love them.

May 8, 2025

5

Very extremely nice people and very concerned care team I love taking my child to them I would recommend them to everyone.

May 1, 2025

1

Good job guys

Apr 27, 2025

5

Everyone at Willamette Dental was excellent! Love the denturest team.

Apr 24, 2025

5

Everyone at Willamette dental is very professional and helpful.thank you for everything.

Apr 21, 2025

5

I did not see Brian Lieu, I saw a female assistant that did a good job resolving my issue

Apr 19, 2025

1

Scheduling was super easy, the staff were great at check in and the hygienist was amazing and patient and kind. The dentist however felt like he stomped in barely looked in my child's mouth and had a really "I don't care to be here" attitude. The hygienist was more helpful than he was. I def don't ever want him to see any of my kids or me.

Apr 19, 2025

4

Everyone was very helpful

Apr 17, 2025

5

Am very happy with the work that provided for me thank you so much.

Apr 4, 2025

5

Thanks

Mar 31, 2025

5

Everyone was/is super cool and accommodating!

Mar 29, 2025

5

My experience was good overall. I was treated with care and safety. Everyone is really nice.

Mar 29, 2025

5

The staff was very polite and helpful.

Mar 28, 2025

5

I absolutely love the staff here. Always friendly, polite, fun, informative and best ever!

Mar 21, 2025

4

I wish that they had told me the results of my x-rays. Did I have any decay? I forgot to ask, but it was up to Dr. Lieu to let me know. Other than that, I'm happy with my appt.

Mar 21, 2025

5

Just one thing nit sure if always like this but did you do like appointment reminders. I never got one . Just wondering. Other then that really helpfully crews.

Mar 21, 2025

3

The staff are amazing. The appt lead times are insane. Also I waiting 25 min on the phone just to make an appointment. Got to be throwing away clients.

Mar 5, 2025

5

The dental hygienist/assistant was amazing and gentle with my son and also her conversation with me through the appointment was so pleasant and welcoming. Sometimes dental appointments can be filled of all the things you as a parent know that can be better but sometimes it's the delivery that can change the impact of the information delivered. The dental assistant was amazing! The dentist was great too. We never know what parents or people are dealing with so we have to treat people with kindness.

Mar 2, 2025

3

Actually enjoyed this trip, very satisfied

Feb 24, 2025

4

Well, I'm a dental group is pretty professional, pretty comprehensive, very great system. The only thing that I didn't like was the doctor. He seemed a little impatient and I kind of wanted to speak to him a little bit more about my specific teeth and things I wanted to do. But other than that, the hygienist was amazing. The person before her work was amazing. Everything was amazing, but the doctor seemed a little impatient. That's all. Thank you.

Feb 24, 2025

5

I am thankful

Feb 19, 2025

5

They care about my dental health and very punctual and professional

Feb 11, 2025

5

Great customer service, they take extra care and time to give the care needed for my daughter. I love how all staff and dental assistance were patience with my daughter. Thank you for such your service

Feb 10, 2025

5

Super helpful and friendly. I've been going to them for about 10 years and are always helpful and friendly.

Feb 9, 2025

2

Have the providers tell clients what there going to do before using tools and hands forcible so clients won't fill uncomfortable

Feb 9, 2025

1

Honestly, my experience with that specific dentist at your clinic was horrible. He looked and spoke to me like I was trash and made me feel very uncomfortable and I honestly will be requesting to never have him again. Other than that, my experience with Willamette has been great, but that dentist needs to learn how to treat people because he was super disrespectful and just rude. He really needs to fix his face to say the least. So that's all I have to say about that dentist.

Feb 9, 2025

5

Staff is always pleasant and helpful! We appreciate the dental team so much. It would be great if I could schedule appointments at the office, having to remember to call is very inconvenient and really my only complaint. Thank you!

Feb 7, 2025

4

It is no longer easy to get appointments with them in a timely manner. I really wish that they hadn't closed the dental office on Welder. The dental office where I have to go now is so far away from where I live.

Feb 2, 2025

5

It was quick, smooth, well executed and fast.

Feb 1, 2025

5

I can't remember her name. She did amazing job on my teeth. I thank you all.

Feb 1, 2025

5

The dentist that I saw was very nice, he was kind, he knew what he was doing and talking about and I appreciate that.

Jan 30, 2025

5

I am very happy with your services. Thank you very much.

Jan 20, 2025

2

Because of someone not having the experience of doing impressions I had to leave work in the middle of my day. It is a 45min drive for me just to get there. I still don't have my bottom dentures, no phone call either to let me know when I can pick up dentures

Jan 21, 2025

5

Best dentist office I ever been too

Jan 17, 2025

4

Wait time was a bit long.

Jan 12, 2025

5

everything is great. My son was satisfied after the reception! Thank you.

Jan 11, 2025

5

Everybody was very professional, friendly and the kicked backed, easy going atmosphere made it a very pleasurable visit. And I'm looking forward to my next appointment thank you.

Jan 11, 2025

5

I really appreciated Valerie's professionalism and friendliness. All the staff were great. Dr. Lieu was very knowledgeable and helpful.

Jan 11, 2025

5

Thanks for taking care of my teeth you rock.

Jan 11, 2025

1

Providers were misleading and the hygienist as well as the dentist were not in good moods, and therefore were not very friendly.

Jan 4, 2025

4

much. Everyone is professional and great. We just wish that when multiple appointments were needed that we could make them together or closer together rather than waiting months out between appointments. Other than that, we absolutely love it. It's great. Thank you.

Dec 29, 2024

3

The fill-in dentist had a bad attitude. I needed a bad tooth pulled and he barley looked at it. The assistant was good and helped me get a sooner appointment than I had already. So I can still use both appointments.

Dec 29, 2024

3

My request to have all the options written down so I can understand them was ignored.

Dec 27, 2024

5

All my expectations were met and despite me having many questions, which I wasn't able to ask all them, I was overall pleased with the professionalism of staff!

Dec 26, 2024

4

The hygienist who assisted me was very professional and had excellent "bedside manner" as she talked through what all was happening. It took several attempts to get my tooth sufficiently numb and she was quite patient with that process. The dentist who did the work seemed a bit impatient with the process and seemed frustrated that my tooth wouldn't numb. He had an alternative dentist come to numb it and that person was also very informative and had good "bedside manner" in assuring me that it wasn't my fault and talking through the process. All in all, I believe the problem was fixed, and the primary dentist who did the work did a satisfactory job with the tooth, which is my primary concern.

Dec 20, 2024

5

As an incentive, I got the gift card. That's only one problem when you're giving that gift card. We should be able to use it anywhere not just on Amazon. I have never shopped on Amazon. And really would prefer not to. So I think that should be noted when you're offering that kind of card.

Dec 19, 2024

5

Very smooth visit. The DA went over everything with my little one so she was not scared. Dr Lieu was very kind.

Dec 17, 2024

5

They really give you the attention you need, thank you.

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