About Us

Meet Our Doctors

G. Glenn Buchanan, DDS, PS

Photo: Dr. Buchanan

Dr. G. Glenn Buchanan finds tremendous joy in bringing out the healthy, beautiful smiles in patients of all ages.

Dr. Buchanan earned his undergraduate degree in Biological Sciences from the University of California at Irvine, and his DDS from Georgetown University School of Dentistry in Washington DC. With over 25 years of experience, Dr. Buchanan incorporates his expertise and current technology to provide his patients with the best in family, cosmetic, emergency, and comprehensive dentistry. He is a member of local and national dental societies and actively participates in continuing dental education.

Dr. Buchanan and his family relocated to Seattle from Southern California in 1992 and founded Gateway Dental Centre of Seattle that same year, followed by Reflections Dental Centre in West Seattle in 2005. Dr. Buchanan and his wife enjoy traveling to see their children and experiencing the beautiful Washington scenery while skiing, snowshoeing, or hiking with their beloved dog, Jack.

John Y. Kim, DDS, PS

Photo: Dr. Kim

Dr. John Kim is dedicated to providing a positive, educational experience for each of his patients. His upbeat, conversational style, as well as his meticulous, integrated approach to dental care, inspire his patients to achieve a lifetime of healthy smiles. Dr. Kim believes it is a privilege and an honor to care for your dental health.

A Seattle native and graduate of the prestigious University of the Pacific School of Dentistry in San Francisco, Dr. Kim now serves on the Board of the Pacific Dugoni Foundation where he helps to shape the education of future dentists. Dr. Kim is committed to keeping up with the latest in dental technology and techniques through continuing education and membership in various study clubs and dental associations.

When not practicing dentistry, Dr. Kim enjoys running, playing with the family dog, and spending time with his wife and children.

Lucy Scantlebury, DDS

Photo: Dr. Scantlebury

Dr. Lucy Scantlebury has been happy to call the Northwest home for most of her life. After growing up in Northern Idaho, she attended Linfield College in Mcminnville, Oregon, and graduated from the highly regarded University of Washington School of Dentistry in 2005.

Dr. Scantlebury has a firm commitment to patients’ oral health, comfort, function and esthetics. Patients appreciate her friendly, warm personality and detailed approach to their dental care. She is an active member of the Renaissance Study Club and Seattle Study Club, where she and other dentists collaborate to learn the most current information and techniques in the dental field.

Dr. Scantlebury currently resides in West Seattle with her husband and children.

Mehng-Shuhn (Albert) Kuo, DDS

Photo: Dr. Kuo
Specialist in Endodontics

Dr. M. Albert Kuo, graduated from the University of Pennsylvania, School of Dental Medicine with a specialist certificate in Endodontics. He has received many awards, including an Outstanding Proficiency Award for his achievements in the Endodontic program. He is an active member of the American Association of Endodontists.

Dr. Kuo has over 20 years of experience in dentistry, of which 15 years have been devoted to Endodontics. He strives to stay up to date with the latest technologies and advancements in technique within the dental community. Dr. Kuo invests a significant amount of his time in continuing and ongoing education to stay updated and to refine his skills.

Johnny Wang, DDS, MPH, MS

Photo: Dr. Wang
Specialist in Periodontics

Dr. Wang’s philosophy for patient care is to always treat patients as though they are “members of my family”.

He recevied his dental degree from Chung Shan Medical and Dental University in Taiwan, Masters of Public Health from the University of Alabama at Birmingham School of Public Health, and a Certificate in Periodontics and Masters of Science designations.

He is a Clinical Associate Professor in Periodontics and serves as the Chief of Periodontics at the University of Washington Medical Center. Dr. Wang is a Diplomate of the American Board of Periodontology.Dr. Wang’s research includes quantifying the effects of systemic health on periodontal status and the clinic outcomes of immediate and delayed implant placement and loading. Additionally, Dr. Wang sits on the Curriculum Committee and Student Progress Committee at U of W, a role which helps course directors to ensure equivalency of education for all Periodontic students.

Kimberly Winton, DDS

Photo: Dr. Winton

Dr. Winton grew up in the Midwest, where she graduated from the University of Missouri, Kansas City School of Dentistry. Following graduation, she moved to Seattle to complete a general practice residency program at the University of Washington School of Dentistry in 2010. Here she learned advanced surgical procedures and worked with medically compromised patients in a hospital setting.

Dr. Kimberly Winton is dedicated to achieving high-quality dentistry that is esthetic, functional, comfortable and long-lasting. She stays up to date with modern dental techniques and technology by being active in the local dental society and various study clubs and by frequently attending dental continuing education courses. As well, her positive demeanor and gentle touch create a relaxed and pleasant environment, and she will tailor her style to meet your specific needs and requests. She is proud of her profession and what she gets to do every day.

When not working, Dr. Winton loves to explore the Pacific Northwest through hiking, biking, skiing, and rock climbing. She also loves to cook and bake for her friends and family.

Our Staff

Photo: Anh-Thu, Hygenist


Registered Dental Hygienist

Photo: Dee, Hygenist


Registered Dental Hygienist

Photo: Anna, Assistant


Dental Assistant

Photo: Lolita, Assistant


Dental Assistant

Photo: Valentina, Assistant


Dental Assistant

Photo: Allison, Patient Services


Patient Services

Photo: Evelyn, Patient Services


Patient Services

Photo: Kelli, Administrative Director


Administrative Director


At every age, your dental health is an important part of your overall health and well—being. We work with patients of all ages to create a customized plan that enhances your dental health and helps you showcase your beautiful smile. Our patients come from all around Seattle, including Bellevue, Issaquah, Renton, Everett, Bainbridge Island and beyond.

Whether it’s been just a few months or several years since you’ve seen a dentist, we are here to help you achieve your dental health goals. The Gateway Dental team will partner with you to ensure you understand your dental health care needs and how to achieve the beautiful, healthy smile you want. If you’re looking for a patient-focused, full-service dentist in downtown Seattle, call us today!

“The staff is always professional and amazing. They are very considerate and treat each client with respect and courtesy. I’ve always enjoyed the staff and appreciate their patience and willingness to work with me for scheduling and other issues.”

– Kim W.