Dr. Zachary Casagrande - Northern Virginia Orthodontics

Dr. Casagrande

My patients and my team are the best in the business. We've perfected over 20,000 smiles.


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A Northern Virginia native, Dr. Casagrande attended Sunrise Valley Elementary School and South Lakes High School in Reston, Virginia. He received his Doctor of Dental Surgery degree, magna cum laude, from the Medical College of Virginia (MCV).

In addition to his dental degree, Dr. Casagrande also earned a Masters of Science and an orthodontic degree from the Medical College of Virginia. During his studies at MCV, Dr. Casagrande received grants from Pfizer for work on his master’s thesis. He remains part of the Medical College of Virginia as a professor in the Department of Orthodontics, where he teaches orthodontic residents to become orthodontists.


Dr. Casagrande founded Northern Virginia Orthodontics in 2008. Since then, he has become the #1 Invisalign provider in North America, and has treated more Invisalign patients than any other provider in the country. Because of this, Invisalign has chosen him as one of their national speakers. Dr. Casagrande is also the Director of Clear Aligners for Smile Doctors, the largest orthodontic organization in the country. He also has extensive training with all variations of orthodontic care from simple cases to the most complex. As a member of the VCU Craniofacial/Facial Reconstruction Team, he has had years of experience with complex cases that require orthognathic jaw surgery.

Dr. Casagrande has been highlighted as one of the best in orthodontics by several local publications. Washingtonian Magazine and Northern Virginia Magazine have both repeatedly recognized him as one of the DC area’s Top Orthodontists. Incisal Edge Magazine named him a leading provider nationally by honoring him as one of their Top 40 Under 40. He is also proud to have been listed by Washington Parent Magazine as one of their mom-recommended “Favorite Docs.” Dr. Casagrande was proud to be named “Entrepreneur of the Year” by the Loudoun County Chamber of Commerce at the 2019 Small Business Awards.

Dr. Casagrande is the team orthodontist for the Washington Capitals, Washington Wizards and Washington Mystics, and treats many other area professional athletes as well.

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In the Community

Dr. Casagrande and the team at NVO are passionate in the fight against pediatric cancer and have donated over $1.3 million dollars to local charities, Children’s National Hospital and Inova Schar Cancer Institute. Dr. C also regularly visits local schools and enjoys making an impact on children of all ages in their educational journey.

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Outside the Office

Dr. Casagrande and his family are residents of Leesburg, VA. He enjoys spending time with his wife, Gena, and their three children, traveling and following all DC sports. He is also a big fan of University of Arizona baseball, where his son currently plays. As a Level 1 Sommelier, Dr. Casagrande also enjoys discovering new wines and winemaking for his own label “Grande.”

Casagrande Family

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Fun Facts

I thought I would grow up to be: An airplane pilot

Favorite sports team: The Washington Capitals, of course!

I never leave my house without: iPhone and chapstick

If I could meet one person: Definitely Dave Matthews

Favorite DC museum: Air & Space

Something that makes me smile: Knowing the Washington Capitals are Stanley Cup champions!

What you’ll love about our office: Background noise consists of laughter, good conversation, and rock-and-roll