VA's Top Orthodontist

Dr. Zach Casagrande is honored to be continually named top orthodontist! learn


NVO Center
for Invisalign

The DC Area’s ONLY all adult Invisalign practice is attached to NVO

State-of-the-art-facility offers adults a comfortable, private space

Dr. Casagrande is an Invisalign Super Elite provider and has treated the most cases in the DC area

Flexible scheduling & in-house 0% financing available



Dr. Zach

Congratulations on achieving the Invisalign Advantage Premier Provider Elite status for 2010, 2011 and Super Elite Provider Status from 2012-2014! Because of your hard work & dedication to the Invisalign system, you are recognized as being among the top 1% of Invisalign practitioners in North America.

President & CEO, Align Technology Inc.
Inventor & Manufacturer of the Invisalign System



VA’s Top

Dr. Zach Casagrande is honored
to continually be named
top orthodontist!

Washingtonian Magazine Top Ortho
Northern Virginia Magazine Top Ortho
Washington Parent Favorite Docs
Incisal Edge Magazine Top 40 Under 40



Meet Dr. Nelson

Dr. Zach Casagrande is thrilled to announce Dr. Kristin Nelson has joined the Northern Virginia Orthodontics team!

Dr. Nelson is highly trained in the latest orthodontic techniques and treatment advances for patients of all ages.

She graduated Magna Cum Laude from the University of Maryland Dental School & received her Orthodontic degree from the Medical College of Virginia.




Watch our practice video & see why
we're rated #1 in the DC area

Voted 50 Great Places to Work
by Washington Magazine

Top Orthodontist
by Washingtonian Magazine

Top OrThodontist
by Northern Virginia Magazine

Top 40 Under 40
by Incisal Edge Magazine



Team NVO

Our talented and professional staff
has more than 100 years of combined
orthodontic experience

Highly trained staff proficient in advanced diagnostic tools & cutting edge technology

Lab technician provides in-house appliances for faster turnaround

We LOVE what we do!
Voted 50 Great Places to Work
by Washingtonian Magazine


our blog

Dr. Zach Casagrande donates time and smiles to change kids’ lives

Northern Virginia Orthodontics is pleased to announce their partnership with Smiles Change Lives (SCL), a national charity that helps low-income children get braces. “SCL connects deserving children with the orthodontists in their community who want to help them,” states LeAnn Smith, Chief Operating Offer of Smiles Change Lives.

Dr. Casagrande was selected to treat approved SCL patients. This means that SCL can put this doctor’s good intentions to work by finding the kids who most need braces.

"I am proud to be a part of an outstanding organization like Smiles Change Lives. Through SCL we can enhance the lives of children in our community that could not otherwise afford the benefits of orthodontics,” shares Dr. Casagrande. "SCL makes it easy and possible for these children to apply and begin treatment, resulting in a healthy and beautiful smile!”

With the support of Dr. Casagrande and hundreds of others nationwide, SCL is in need of applicants. SCL is currently seeking children:

  • Ages 11-18
  • With severely crooked teeth and misaligned jaws
  • Whose family income at or below 200% of Federal Poverty Level
  • With good oral hygiene
  • Who are motivated to comply with program guidelines and treatment plan

With the current economic downturn, more families now qualify for Smiles Change Lives due to a change in the program’s financial guidelines. Anyone interested is encouraged to visit to determine if their family meets the financial guidelines. Families interested in applying can review program guidelines and download an application in English and Spanish at or by calling 888-900-3554.

SCL is a nationwide program serving children in 50 states. Email for more information or to join the mailing list, or join SCL online at to keep up to date on current news and program expansion.

Dr. Casagrande is a Diplomate of the American Board of Orthodontics, a distinction held by less than 25% of orthodontists. A Northern Virginia native, Dr. Casagrande received his Doctor of Dental Surgery degree, magna cum laude, from the Medical College of Virginia. In addition to his dental degree, Dr. Casagrande also earned a Master of Science degree and a degree in Orthodontics from the Medical College of Virginia. He remains a part of the Medical College of Virginia as an Assistant Professor in the Department of Orthodontics, teaching residents to become orthodontists.

Dr. Casagrande is highly trained in the latest orthodontic techniques and treatments for pediatric, adolescent, and adult patients including Invisalign and self-ligating bracket systems that can reduce treatment time and increase patient comfort. He is the only Invisalign Elite Provider Orthodontist in Loudoun County. This distinction puts Dr. Casagrande amongst the top 1% of Invisalign providers nationwide. He also has extensive experience with complex cases requiring orthognathic jaw surgery as a former member of the VCU Craniofacial/Facial Reconstruction Team.

For more information on Dr. Zach Casgarande and Northern Virginia Orthodontics, please visit our website at or call us at 703.327.1718.

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