Architects of Change — building the future of the National Dental Association. Become an Architect →
About the NDA · Contact

Contact Us

Whether you’re a member, partner, pre-dental student, or community supporter, the National Dental Association team is ready to connect with you.

Monday – Friday · 9:00 AM – 5:00 PM (ET)Washington, DC
The National Dental Association headquarters at 3517 16th Street, NW, Washington, DC
Office address 3517 16th Street, NW
Washington, DC 20010
The NDA’s own headquarters building, on 16th Street NW.
Phone +1 (202) 885-9492 Answered during office hours.
General inquiries info@ndaonline.org Or write to the desk that handles your question, below.
Office hours Monday – Friday
9:00 AM – 5:00 PM (ET)
Who to reach

Write to the right desk

A few inboxes cover most of what the NDA is asked. Pick the one that fits and your message arrives with the person who can answer it — each link opens your mail app with the subject already set.

General inquiries

NDA staff

Not sure who to ask? Start here and your message is routed to the right team.

info@ndaonline.org

Events & programs

Tonya Horsley

The Annual Convention, Women’s Health Symposium, webinars and NDA programming.

thorsley@ndaonline.org

Partnerships & sponsors

Marcus Ware

Corporate partnership, sponsorship packages and exhibiting at NDA events.

mware@ndaonline.org

Already a member?

Renew, update your profile, register for events or open a support ticket in the member portal — it is the fastest route for anything tied to your own membership.

Visit us

NDA Headquarters

The historic National Dental Association Headquarters stands as a symbol of legacy, resilience, and community. Originally purchased by the NDA Foundation in the 1990s, the stately home has long served as a gathering place for Black dental professionals and a beacon of pride for the organization.

After more than a decade away, the National Dental Association has proudly returned to its headquarters, restoring the building’s role as the heart of the NDA’s operations and history. Today, it once again hosts staff, meetings, and member events—connecting past, present, and future generations dedicated to advancing oral health equity and excellence in dentistry.

3517 16th Street, NW
Washington, DC 20010

In pictures

Keep up with the NDA

Together, we’re advancing oral health equity and supporting the next generation of dental leaders.

National Dental Association — photo 1
National Dental Association — photo 2
National Dental Association — photo 3
National Dental Association — photo 4
National Dental Association — photo 5
National Dental Association — photo 6
National Dental Association — photo 7
National Dental Association — photo 8
National Dental Association — photo 9
National Dental Association — photo 10
National Dental Association — photo 11
National Dental Association — photo 12

Follow the NDA on Instagram

@nationaldentalassociation — events, member spotlights, convention coverage and the work between them.