dr yamaguchi

Dr. Manami Yamaguchi, Your Lake Oswego Dentist

Believing that dentistry is a healing profession, Dr. Manami Yamaguchi makes for a different kind of dentist. As a gatekeeper of health, she runs her practice on three core values: professionalism, attentiveness, and quality. Her office practices with the belief that there is a direct connection between dental care and overall health.

After working in a corporate dentistry setting for four years and learning basic dentistry skills, she worked in a private practice in Lake Oswego. This is where she learned to take care of the community with a more comprehensive focus and where she was given the opportunity to own her own practice. Being the practice owner means being able to say “yes” or “no” to many small yet important things when caring for her patients. It also gives her the freedom to make and implement decisions that improve both her practice and patient care.

As a big sister, she organically grew into the role of a caretaker and educator, traits she shows in her practice today. She grew up in the culture-rich cities of Kyoto and Osaka, in Japan, where art is considered in life’s many stages. She came to the U.S. to earn her BA in biology from Portland State University and her DMD from Oregon Health Sciences University. She continues to further her education with postdoctoral advanced training. To her, dentistry is a wonderful profession that introduces her to many great people, places, and ideas.

Even though she’s passionate about resting, Dr. Yamaguchi keeps busy with three rescued dogs and hiking with friends and her husband around Oregon and Washington. If you ever want to really get on her good side, she is a big fan of razor clam digging and loves it with a bit of Japanese sake.


BA in Biology from Portland State University
DMD from Oregon Health Sciences University

Professional Affiliations

American Academy of Oral Systemic Health
Academy of Bioesthetic Dentistry
American Academy of Facial Esthetics
American Academy of Cosmetic Dentistry
American Dental Association
Academy of General Dentistry

Postdoctorate advanced training

Biosthetics, Kois Center, Las Vegas Institute, Implant Study Club, Chao Training

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Read What Our Patients Say About Us



  • Dr. Yamaguchi and her team are great! They are very professional at their work and they care about my dental needs, my financial option as well. I had good visiting experience there.

    Jing C.
  • #1 Dentist and Dental Team Ever! They treat you like family while providing top quality dental care. Because of this we always look forward to our visits to the dentist hands down. I highly recommend Dr. Yamaguchi and her team.

    Suzie S.
  • Excellent! Front desk always friendly and helpful. Vivian did an excellent job. Not easy to fill in for a regular. She could easily become a regular member of the staff.

    Deanna W.
  • "I have a number of systemic health issues that I am trying to better understand and Dr. Yamaguchi made me feel heard. She was very careful to consider my overall health vs. just my dental health. Great 1st visit and I'll be back."

    Celeste P.

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