Welcome to
Mercer Island Dental!
The Office of
Dr. Goichi Shiotsu and
Dr. Ryan Tam
About Us
Located In Mercer Island WA, serving the greater Washington County area, it’s our sincerest desire to provide the very best that dentistry has to offer to our patients. Our warm and caring staff are a dedicated and professional group that will work hard to put you at ease and make you comfortable the moment you step into our office. You will find that we’ve invested in just about everything imaginable, as well as some things you can’t imagine, to help you obtain and maintain excellent dental health.
Our patients say.
Meet the Doctors
Dr. Goichi Shiotsu
Dr. Shiotsu is highly respected by his colleagues, who often refer their patients to him for help in resolving complex and challenging dental situations. He is one of a handful of dentists in the U.S. to receive certified university-based specialty training in both the surgical and restorative aspect of implant dentistry.
He is a national lecturer and an author, often asked to speak on the topic of implants and esthetic dentistry.
Meet the Doctors
Dr. Ryan Tam
A native of Washington state, specifically Mercer Island, Dr. Tam graduated from Mercer Island High School in 2011 and then completed a Bachelor's of Science degree in Neurobiology at the University of Washington (UW). His strong interest in both art and science led him to the UW School of Dentistry, which he graduated with a Doctorate in Dental Surgery (DDS) in 2020.
Dr. Tam started his career as a volunteer dental assistant at the Dental Fears Research Clinic while at the UW. From there, Dr. Tam got involved with research on topical fluoride use and its effectiveness in preventing cavities.
Why
Choose Us
- Not only do we specialize in complex dentistry we provide total care for you. Visit us for your regular check-ups and cleanings!
- Dr. Shiotsu has advanced training in General & Sedation Dentistry.
- We use the latest technology to provide the best care for our patients, including microscopes, which allows for closer inspection of restorations and reduce patient discomfort with decreased healing time.
- Local dentists and doctors choose our office for their personal dental care.
- Dr. Shiotsu & Dr. Tam prescreen all of their patients for oral cancer. Your oral health is our top concern.
Services

Dental Implants
Dental implants are a permanent solution for patients seeking that perfect white smile. Implants are a great choice for patients that have broken, damaged, or missing...

Oral Conscious Sedation
Is dental anxiety preventing you from receiving the dental treatment you deserve? With sedation, we can help you relax and feel more comfortable at our office.

Microscope Enhanced Dentistry
We are proud to be one of the few offices in the area that use dental microscopes for all of our restorative procedures. Find out why both Dr. Shiotsu and Dr. Tam invest their clinical skills with this game-changing technology.

Fotona Laser
The Fotona Laser is a revolutionary device that can penetrate both hard and soft tissue in the mouth. This laser replaces the traditional dental drill, which eliminates the sound, pain and vibrations that often cause patients to fear the dental office.

Bio-Care Facial Esthetics
CARE Esthetics Mercer Island strives to deliver the most modern facial esthetics in Washington State. Their warm and caring staff attend to their patients’ skin care needs and help them feel at ease by welcoming them into a friendly, comfortable, and professional environment.
Dr. Shiotsu has been voted one of the area's top dentist
by Seattle Metropolitan Magazine every year from 2011 to 2022.

2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022