Your kids are our number one priority! At Eastside Pediatric Dental Group, we are committed to supporting you and your child with the kind of warmth, compassion, and expert care that helps your child achieve a lifetime of excellent oral health! As the Eastside’s largest practice, we can accommodate families with multiple children for an all-in-one visit!
When you visit us, you’ll notice right away that everything we do is aimed at creating a positive dental visit for your child and you. Our practice specializes in dentistry for patients from infancy through adolescence. Your child will quickly discover that visiting our dental office can be a lot of fun. And, you can relax knowing your child is in expert hands. Click here to learn more about what to expect during your child’s first visit.
Dr. Cody Mast earned his Doctor of Dental Medicine (DMD) degree from Nova Southeastern University’s dental program in Florida, followed by a two-year pediatric dentistry residency at Indiana University, which he completed in 2004. Prior to dental school, he attended Willamette University in Oregon, graduating with a major in German and a minor in Economics. During his junior year, he studied abroad at Ludwig Maximilians University in Munich, Germany, where he met his wife, Kelley. He later completed a fifth year of coursework at the University of Washington to meet the prerequisites for dental school.
Outside the office, Dr. Cody enjoys mountain biking, skiing, and photography. His favorite part of working with children is that “they are hilarious and extremely honest!

Our office is kid-friendly! Between the prize tower and popsicles, your child will feel safe and comfortable.

If your little one gets a tooth pulled, we give them a mini treasure chest to keep the tooth safe!

At Eastside Pediatric Dental Group, our entire staff is dedicated to giving back to our community.
EXCELLENT Based on 305 reviews Posted on Google Rebecca L Dr. Cody Mast is fabulous! I am a dentist and I am so impressed by his knowledge and kindness towards my kids. We feel so lucky to have him as our kids' dentist and trust him completely with their care.Posted on Google R M I’ve been bringing my three kids here for years, and I can’t say enough good things about this practice. From the moment you walk in, everyone is friendly, welcoming, and genuinely kind. My kids feel comfortable here, which says a lot—they rarely complain about going to the dentist (unless it’s an early morning appointment 😊). Dr. Cody is fantastic. He’s thorough, knowledgeable, and takes the time to connect with his patients. What really stands out is that he remembers our family and conversations from months prior, making each visit feel personal rather than routine. It’s clear that he truly cares about his patients and their families. We’re so grateful to have found this practice and highly recommend it to anyone looking for a caring, trustworthy dental office for their children. Thank you for taking such great care of our family!Posted on Google Farah n Dr. Cody and Dr. Lee were amazing! My 8 year son had 4 extractions and required General Anesthesia as he was extremely anxious about his dental procedure. Dr. Lee (Anesthesiologist) made sure he was at ease before he was taken in and we understood everything that would occur after the procedure. Dr. Cody was terrific and explained every step clearly and also the lifestyle changes we needed to make for better dental health. The front staff was extremely helpful and clear about insurance coverage. Happy with our experience!Posted on Google Tamara M Always a favorable visit. Courteous and competent staff.Posted on Google Amanda K From the front desk to the end of the appointment… the entire staff are warm, welcoming and wonderful to see every time we come to visit. Would highly recommend Eastside Pediatric Dental!Posted on Google K.C. H Great placePosted on Google Beatrice W The dental hygienists are always so great and patient with my daughters. Kristen is great and Dr. Mast is comprehensive