Dr. Zach Casagrande

My patients and my team are the best in the business. We've perfected over 30,000 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. Zach Casagrande founded Northern Virginia Orthodontics in 2008 with a vision to build the premier orthodontic practice in the Northern Virginia area. Since then, he has opened six more NVO locations including the nation’s first Invisalign Studio retail store. NVO was named the #1 Invisalign provider in North America in 2019 after successfully treating more Invisalign patients than any other practice in the country- and the same distinction has been awarded every year since. Dr. Casagrande is also one of only 15 recognized Invisalign Master Faculty national speakers for Align Technologies and lectures worldwide, speaking to doctors on Align’s technological advancements and treatment techniques.

Dr. Casagrande serves as the Clinical Director of Aligners for Smile Doctors, the largest orthodontic organization in the country. As the Clinical Director, Dr. Casagrande works with hundreds of Smile Doctors clinics, educating doctors and their teams on best practices and systems. Additionally, Dr. Casagrande is involved with the business development and growth of Smile Doctors nationally.

In 2018, Dr. Casagrande founded and developed Smile Express™, the premier at-home orthodontic kit that provides consumers with safe and supervised Invisalign treatment from a nationally recognized team of orthodontists. Smile Express has successfully treated thousands of patients and is now available in over 35 states.

Dr. Casagrande has extensive training with all variations of orthodontic care from simple cases to the most complex. As a former member of the VCU Craniofacial/Facial Reconstruction Team, he has had years of experience with complex cases that require orthognathic jaw surgery. He has been recognized as one of the DC area’s “Top Orthodontists” by Washingtonian Magazine, Northern Virginia Magazine, Virginia Living Magazine, Washington Parent Magazine, and was named 2019 Entrepreneur of the Year by the Loudoun County Chamber of Commerce. 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 $1.6 million dollars to local charities, Children’s National Hospital and Inova Schar Cancer Institute. In 2017, Dr. C started the NVO Foundation, a 501(c)(3) which is dedicated to funding various cancer causes in the DC area.

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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. As a Level 1 Sommelier, Dr. Casagrande also enjoys discovering new wines and winemaking for his own label “Grande.”

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