Whether you’ve found us through a referral from your dentist or you’ve reached out to us directly, we’re pleased that you are considering us for your endodontic needs. Dr. “Alan” Wonhee Lee is a highly trained endodontist who provides gentle care and makes his patients’ comfort a priority.

We know that you probably have many questions about the services we offer and how they benefit you. Please look around our website, and if you don’t find what you need, call us at (703) 429-9926, and we’ll be happy to answer your questions!

Our Location in Reston, VA

Endodontic Excellence is located at 11800 Sunrise Valley Drive, Suite 250. You can reach us by taking the Dulles Toll Road to Reston Parkway. We’re in the tallest building in the area, Reston International Towers, with its distinctive black glass exterior. We’re near Reston Heights and Reston Town Center.

Nearby landmarks include Reston National Golf Course, Reston Town Center Transit Station, Virginia Spine Institute, and the Sheraton Reston.

We welcome patients from Reston, Herndon, Chantilly, Vienna, Sterling, Great Falls, Loudon, and surrounding communities.

We Never Double Book Appointments!

At Endodontic Excellence, we don’t believe in double-booking appointments. While you are in our dental chair, your time is devoted to YOU and you alone.

This offers several benefits to the patient. Because our policy is to see only one patient at a time, we can schedule appointments that dependably run on time.

Since we focus solely on your needs during your appointment, you won’t find Dr. Alan distracted by someone else’s dental issues. Endodontics is a highly technical field, and your treatment deserves our full and undivided attention.

Our Advanced Technology

We offer advanced technology that contributes to a comfortable, stress-free experience for you. Dr. Alan is committed to providing his patients with the highest standard of care and remains on the leading edge of endodontic treatment and techniques. 

Amenities for Your Comfort


When you arrive at Endodontic Excellence, you will be greeted warmly, and you’re welcome to grab a snack or cup of coffee from our beverage bar. Then, when it’s time for your appointment, you can relax with your favorite TV program or a selection of music with our wireless headphones.

We’re also pleased to offer sedation dentistry with nitrous oxide (laughing gas) and oral sedation.

Community Involvement

We are proud to give back to our community through donations to charities using the matching system, sponsorships to local businesses with gift cards.