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Thomas Dentistry is conveniently located downtown Mercer Island right across from Bank of America. Dr. Troy Thomas opened Thomas Dentistry on Mercer Island in 2007 and lives with his family on Mercer Island.
We offer a full range of services at our Mercer Island dentist office, including routine dental checkups, cleanings, and many other procedures to keep you and your family in tip-top dental health.
We treat patients of all ages, young children, teenagers and adults. We offer family appointments and extended appointment hours throughout the week to make scheduling an appointment easy and convenient for you. We know you’re busy and constantly on the run, so our goal is to make fitting in a trip to your Mercer Island dentist as easy and convenient as possible.
Dr. Troy Thomas, Dr. Gurman Jaswal, and Dr. Ken McNabb are here to help – whether you’re looking to achieve a new smile or have dental pain and need help, we are here for you on Mercer Island serving our community.
Thomas Dentistry accepts all major forms of dental insurance and offers an optional dental membership program to help pickup where dental insurance leaves off or for patients who lack dental insurance all together. Our dental membership program is far superior in cost and benefit than most forms of dental insurance!

Dr. Troy Thomas
General Dentist
Dr. Jessie Zou
General Dentist
Dr. Chris Clark
General Dentist
Dr. Ken McNabb
General Dentist
Dr. Ken McNabb
General DentistRead More Reviews
Read our reviews from all Patients.
sebastian gillbanks
Happy Client from Kirkland Office
“Very friendly staff and quality services”
David Hughes
Happy Client from Mercer Island Office
“Dr Thomas’ work has always been top notch for me and my family. The staff is genuine, friendly and easy to work with. Not changing dentist ever!”
Henry Pang
Happy Client from Mercer Island Office
“The services are great and very professional.”
B B
Happy Client from Mercer Island Office
“The best place!!! Great dentists!!! HIGHLY RECOMMENDED!!!”
Dennis Ferrer
Happy Client from Kirkland Office
“Nice, smart and they do a great job”
Janelle Denson
Happy Client from Mercer Island Office
“I love coming here & I’m always greeted with smiles. It truly makes me feel great that the staff remembers my name & even though I visit every six months for my cleanings, our conversations pick up right where we left off. Marna, Rosie & Dr. Thomas are THEE BEST! I’d leave ten stars if I could.”
Brookstorm Honorblade
Happy Client from Mercer Island Office
“Friendly, comforting, professional, and painless. ;)”
Ben Sharpe
Happy Client from Mercer Island Office
“They are awesome! Took care of my four kids today super convenient!”
linda
Happy Client from Kirkland Office
“Had my teeth cleaned today again by Rosie. She is an excellent Dental hygienist. Takes the time to answer all my questions and is very informative. Greatly appreciate it.”
Linda Scott
Happy Client from Kirkland Office
“I visited Thomas Dentistry as a new patient on 9/9/21 and was impressed with their friendliness and professionalism. While there, multiple staff joined in to help resolve a personal issue, for which I was very appreciative. My husband and I will definitely schedule again with Thomas Dentistry Kirkland, and I’ll recommend them to family and friends.”
D Enright
Happy Client from Kirkland Office
“Wonderful, welcoming staff always leaves me smiling!”
Matt Wang
Happy Client from Mercer Island Office
“Dr. Jaswal is an absolute pleasure to work with!”
Jacqueline Roer
Happy Client from Mercer Island Office
“Five stars! Great Dentist and work he does and great staff.”
Madeleine Dow
Happy Client from Mercer Island Office
“Dr. Nguyen and the dental hygienists are super nice! I felt comfortable and safe—even the time I started crying when I had a panic attack before getting some cavities filled. (Sorry about that lol.) Anyways, Dr. Nguyen was very kind, gave me space to chill out, and didn’t make me feel embarrassed, even though I wouldn’t have blamed him if he did.”
Brianna Lyon (Brie)
Happy Client from Kirkland Office
“Everyone is very kind from the start. I have high anxiety dealing with my teeth and dentists; and everyone was incredibly helpful and informative! I'm really happy I found this place for my smile needs!”
Betsy Tutland
Happy Client from Mercer Island Office
“Dr. Thomas is an amazing dentist. At both his Mercer Island and Kirkland offices the staff is very warm and welcoming. Dr. Thomas has been my husband’s and my dentist for over 20 years and has done exceptional dental work. He makes his patients feel at ease with his caring, positive and fun personality. My grandchildren also see Dr. Thomas and he has an amazing way of helping them to feel comfortable and thus, cooperative. Dr. Thomas has the highest medical and ethical standards. I highly recommend seeing Dr. Thomas for any dental procedure.”
Lukas Rogers
Happy Client from Kirkland Office
“Dr. Thomas and his team have managed my dental care for over a decade and I couldn't be happier with how I've been treated. Highly recommend coming in to see him for anyone in need of dental care.”
Bill Sharpe
Happy Client from Mercer Island Office
“Thankful to have a dental team I can trust. Especially in 2021 Thanks all, Bill”
G Brook (Summit Seeker)
Happy Client from Mercer Island Office
“Professional, friendly and patient centered care. My first visit and I am thoroughly impressed. Great office culture and staff love what they do and it shows. Thank you.”
Christy Shiers
Happy Client from Mercer Island Office
“Dr. Thomas is professional and knowledgeable. He is well suited for both kids and adults.”
We believe that dental care should be a collaborative process. Our team takes the time to understand your needs and concerns, ensuring that you’re an active participant in your own dental health. We offer flexible scheduling and transparent pricing, making your experience as convenient as possible.
When it comes to dental care, you deserve nothing but the best. At Thomas Dentistry, we combine state-of-the-art technology with a compassionate approach. Our team is committed to providing personalized care that meets your unique needs.
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