A Legacy of Advanced Care
Advanced Care Dentistry has been a cornerstone of dental health in Woodinville for years. Built on a foundation of excellence, Dr. Marxen and Dr. Hwang have cultivated a practice where dental care is combined with cutting-edge technology to give the community all the best dental services under one roof.
Meet Our Doctor

Dr. Thomas O. Marxen, DDS, MSD
Dr. Thomas O. Marxen brings a unique blend of artistic ability and extensive experience to Advanced Care Dentistry. With his background and specialized training (DDS, MSD), Dr. Marxen is dedicated to crafting smiles that are not only healthy but also aesthetically pleasing and natural-looking. He is committed to providing comprehensive care, ensuring each patient receives treatments tailored to their individual needs.

Dr. Sean Hwang, DDS, MS
Dr. Sean Hwang, is an integral part of the Advanced Care Dentistry team, sharing the practice's commitment to excellence and patient-centered care. Dr. Hwang's expertise complements the comprehensive services offered, further strengthening the practice's ability to provide a wide range of advanced dental solutions. His dedication ensures that patients receive the highest level of comfort and quality throughout their dental journey.
A Higher Standard for Your Safety & Comfort
We are one of the few practices licensed to offer IV conscious sedation, but our approach to comfort goes deeper. Dr. Marxen began his career as a phlebotomist, giving him a gentle, medical-grade touch that sets the tone for our entire practice. Dr. Hwang and our team share this same philosophy: breaking the wall between medicine and dentistry to ensure your visit is not just effective, but incredibly safe and painless from the very first moment.

