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Meet Our Doctors
Get to know our kid friendly dentists!
Certified Specialists

All doctors that work at Smart Pediatric Dentistry are certified specialists by the American Academy of Pediatric Dentistry.

This means that after dental school, they attended two additional years of education and training focused primarily on treating the dental needs of children ages 0-18 years of age. They are also all board certified by the American Board of Pediatric Dentistry.

Our main focus as pediatric dentists are to inform and teach parents about their child’s oral health, do the highest quality dentistry possible, do it safely, and do it in a way that is most comfortable for our patients and parents.

American Academny of Pediatric Dentistry
American Dental Association
Utah Dental Association
Doctor Profile
Dr. Nathan Smith, DDS

Dr. Nathan Smith is a board certified pediatric dental specialist and the founder of Smart Pediatric Dentistry. He grew up in Idaho Falls, Idaho where he was the 8th child of 13. He obtained his dental degree from The Ohio State University’s College of Dentistry where he graduated in the top of his class, Magna Cum Laude. Upon graduation, Dr. Smith moved his family to Colorado to complete his two-year specialty training in pediatric dentistry.

Dr. Smith started Smart Pediatric Dentistry in 2004 which has grown to become the premier pediatric dental groups in Utah County. His dedication to children health and kind demeanor helps all of his patients feel comfortable at the office. Dr. Smith also speaks fluent Spanish.

Growing up in Idaho gave Dr. Smith a great love for the outdoors. In his spare time he enjoys hunting, fishing, biking, traveling, and spending time with his wife, Tiffany and their five children.

College: Utah State University, Biology
Dental School: The Ohio State University
Pediatric Dental Residency: Children’s Hospital Colorado

Smart Pediatric Dentistry Doctor David Macdonald
Doctor Profile
Dr. David Macdonald, DDS

Dr. David Macdonald is a board certified pediatric dental specialist. He grew up in Redmond, Washington and is the youngest of five children. He attended BYU and completed a bachelor’s degree in Music, with the emphasis on the Organ. From there he and his young family moved to Baltimore, Maryland where he attended the world’s first dental school. Dr. Macdonald enjoyed working with children so much that he decided to pursue a two-year specialty degree in pediatric dentistry. Dr. Macdonald is fluent in Spanish and loves working with children of all ages.

Dr. Macdonald has been working with Smart Pediatric Dentistry for over 7 years now. He enjoys living in Utah and being close to family and friends. When he’s not working, you will find him looking for out door adventures like motorcycling, biking and skiing. He also loves playing soccer with friends and spending as much time as possible with his five wonderful kids.

College: BYU BA, Music
Dental School: University of Maryland School of Dentistry
Pediatric Dental Residency: Stony Brook University

Smart Pediatric Dentistry Doctor Ryan Blankenship
Doctor Profile
Dr. Ryan Blankenship, DMD

Dr. Ryan Blankenship is a board certified specialist in pediatric dentistry. He was born in Provo but was raised in the South. He returned to Provo where he met his wife in the anatomy lab. They then headed back to Alabama where he attended dental school and graduated with honors. Following dental school he completed his two-year specialty training in Colorado. He also received advanced training in laser dentistry.

“Dr. Ryan” joined Smart Pediatric Dentistry in 2013. His fun personality and southern charm mix well to create an environment that children and parents will remember and appreciate. Dr. Ryan and his team are dedicated and fully invested in the care of his patients. He continues to stay current with all the recent literature as well as play an active roll in local study clubs and organized dentistry.

In his spare time Dr. Ryan enjoys spending time with his wonderful wife Tammy of 10 years, and their three beautiful children, Jacob, Addi, and Maisy. They love to cook and entertain friends and family, in fact, Dr. Ryan is a professional sushi chef. Second to the love for his family is the love of rock climbing. Many weekends and lunch hours are spent either at the climbing gym or in some far off canyon.

College: BYU, Exercise Science
Dental School: University of Alabama at Birmingham School of Dentistry
Pediatric Dental Residency: Children’s Hospital Colorado

Smart Pediatric Dentistry Doctor Justin Fillmore
Doctor Profile
Dr. Justin Fillmore, DDS

Dr. Justin Fillmore is a board certified specialist in pediatric dentistry. He was raised in Richfield Utah where he spent a lot of time with his father and grandpa working on the farm. He decided he wanted a change of scenery, so after he graduated BYU he moved to Los Angeles for dental school. While in California he met his beautiful wife Lauren. They got married 6 months after he finished dental school during his two-year residency in the Pacific Northwest.

Dr. Fillmore joined Smart Pediatric Dentistry in 2012. His patience and good sense of humor sense of humor allows him to create great relationship with patients and parents allowing them to feel safe and comfortable while at the dentist. He loves his job and always strives for perfection.

Over the years Dr. Fillmore has has developed many different hobbies which include but are not limited to surfing, fly fishing, art/drawing, traveling, snowboarding and camping. Most importantly he loves to spend time with his wife and new baby girl Liv as well as their two year old dog Oliver.

College: BYU, Nutritional Science
Dental School: UCLA School of Dentistry
Pediatric Dental Residency: NYU Lutheran Dental Medicine – Yakima, Washington

Smart Pediatric Dentistry Doctor Gavin Christensen
Doctor Profile

Dr. Spencer Archibald, DDS

Dr. Spencer Archibald was born and raised in Southeast Idaho, the 6th of 8 boys in his family. After earning a Bachelor of Science degree at Idaho State University, he attended dental school at Virginia Commonwealth University, where he graduated with honors. Following dental school, Dr. Archibald completed a two-year Pediatric Dental specialty program at the Stony Brook University Medical Center in New York. Dr. Archibald also speaks fluent Spanish.

Dr. Archibald practiced pediatric dentistry in Arizona for 8 years before joining Smart Pediatric Dentistry in 2017. He loves working with children, and strives to make visits relaxed, fun, and comfortable for every child. With 4 boys and 1 girl, he is well-versed in all things sports, Star Wars, My Little Pony, and Legos.  

In his spare time, Dr. Archibald loves spending time with his wonderful wife and their 5 children. They love being close to family here in Utah. Dr. Archibald also enjoys golf, fishing, basketball, and working on projects around the home.  

College: Idaho State University 

Dental School: Virginia Commonwealth University

Pediatric Dental Residency: Stony Brook University Medical Center, NY

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Commited to Quality Care

We will make every effort to ensure that your first visit with us is a comfortable and informative experience.
Our Doctors, Dr. Smith, MacDonald, Blankenship, Fillmore, Christensen, and our staff focus on the needs of each individual child.

Love this place!
They are so nice, and they do so well with my boys!

Whitney C.
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