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 masters 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.ZachCasagrande founded Northern Virginia Orthodontics in 2008with a vision to build the premier orthodontic practice in the Northern Virginia area. Since then, he hasopened four more NVO locations including the nations 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 Aligns technological advancements and treatment techniques.

Dr. Casagrande serves as the Clinical Director of Invisalign for Smile Doctors, the largest orthodontic organization in the country. As the CDI, Dr. Casagrande works with hundreds of Smile Doctors clinics, educating doctors and their teams on best practices and systems. Additionally, Dr. Casagrande is the Regional Operations Doctor for all Smile Doctors clinics in the Virginia, Maryland and D.C. area, and 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. Casagrandehas 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 areas 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.

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 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.

After graduating as valedictorian of her high school class, she matriculated at the University of Virginia where she earned a Bachelor of Science degree in Biology. After college she went on to attend dental school at Virginia Commonwealth University where she received her Doctorate of Dental Surgery. While in dental school, Dr. Barcoma was inducted into the Omicron Kappa Upsilon National Dental Honor Society for her excellence in academics and leadership, an honor only given to the top students of each graduating class. After dental school, she completed her orthodontic residency at the Medical College of Virginia where she earned her orthodontic certificate and Master of Science in Dentistry.

Dr. Barcoma feels strongly about advancing the orthodontic profession through scientific research and evidence-based treatment. She has published two papers in a major orthodontic journal,The Angle Orthodontist,and is currently working on a third publication.

In her spare time, Dr. Barcoma enjoys painting, running , baking, crafting, traveling, and singing. She enjoys donating her time to many activities in the community. One of the most meaningful projects shes been a part of is the Virginia Mission of Mercy Project. It involves dental professionals and volunteers coming together to provide free dental care to underserved areas in the United States. Dr. Barcoma has also volunteered for the Miles for Smiles 5K Run, the Richmond Special Olympics, the American Cancer Association, and for the American Heart Association.

A native of Fairfax City, Dr. Robb attended W.T. Woodson High school. She went on to attend college at the University of Virginia, where she received her B.A. in Psychology and minor in Biology. She loved cheering on the Cavaliers during her time on the UVA cheerleading team! Dr. Robb received her Doctorate of Dental Surgery degree from Virginia Commonwealth University, graduating summa cum laude. She was also inducted into the Omicron Kappa Upsilon dental honor society. She was given the societys highest honor, the Kramer award, for her potential for advancement of the dental profession and characteristics of leadership, service, and integrity.

Dr. Robb received her Masters of Science and certificate in orthodontics from Virginia Commonwealth University, and has completed scientific research on dental materials used in the prevention and treatment of white spot lesions. Currently, Dr. Robb is proud to be serving as the President of the Virginia Association of Orthodontists for the 2021-2022 year.

Outside of the practice, you are most likely to find Dr. Robb hiking, biking on the W & O, going to the gym or yoga class, reading a good book, or trying out a new restaurant in town! Dr. Robb has a special interest in animal rescue, and enjoys volunteering with local animal rescue groups in her spare time, including local SPCAs and the Lost Dog and Cat Rescue Foundation. She and her husband Andrew adopted their own beagle mix, Layla, and they have loved exploring the Northern Virginia outdoors with their furry friend!