Dr. Zach Casagrande is the founder and CEO of Northern Virginia Orthodontics, which he established in 2008. Since then, NVO has grown to seven locations, including the nation’s first Invisalign® Studio retail store. NVO has been recognized as the #1 Invisalign® provider in North America since 2019, successfully treating more Invisalign patients than any other practice.

Dr. Casagrande earned both his Doctor of Dental Surgery degree and his orthodontic specialty degree, graduating magna cum laude from the Medical College of Virginia. He is one of only 15 Invisalign Master Faculty speakers for Align Technology, and lectures internationally on orthodontic innovation and treatment techniques. His expertise has also earned recognition from multiple publications, including Washingtonian Magazine and Northern Virginia Magazine.

He also serves as the Clinical Director of Aligners for Smile Doctors, the nation’s largest orthodontic organization, helping guide clinical excellence across hundreds of practices.

A passionate philanthropist, Dr. Casagrande founded the NVO Foundation in 2018, which has donated more than $1.6 million to pediatric cancer causes. A fun fact: he is a certified sommelier and founder of Grande Wines, a wine label that supports charitable initiatives through the foundation.

Dr. Casagrande treats patients at all of NVO’s locations, including Ashburn, Reston, One Loudoun, Arlington, Gainesville, and McLean.

Dr. Jessica Itani is a board-certified orthodontist dedicated to creating healthy, confident smiles through personalized, patient-center care.

Dr. Itani earned her undergraduate degree from Georgetown University before attending the University of Maryland School of Dentistry, where she received her Doctor of Dental Surgery degree, graduating summa cum laude and salutatorian of her class. She continued her training at the University of Maryland, earning her Master of Science and Orthodontic specialty degrees. During her training, she was inducted into the Phi Kappa Phi Honor Society, served as Chief Resident for two consecutive years, and received awards for the “top performing” resident.

Dr. Itani is the Clinical Director of Smile Express® for Smile Doctors, the nation’s largest orthodontic organization, helping guide clinical excellence and expand access to affordable, high-quality aligner treatment across hundreds of practices nationwide. Dr. Itani is also an Invisalign® faculty member and lectures nationally teaching orthodontic colleagues and residents how to successfully treat patients with aligners. Additionally, Dr. Itani has treated many celebrity patients and is the Official Orthodontist of the Dallas Cowboys Cheerleaders. She has been recognized as a “Top Dentist”, “Best of”, and “The Face of Invisalign®” in various publications.

Outside the office, Dr. Itani enjoys traveling, staying active at Orangetheory and Solidcore, and expanding her ever-growing shoe collection.

Dr. Itani treats patients at NVO’s Arlington, McLean, One Loudoun, and Gainesville locations.

Dr. Samaneh Mojarrad is a board-certified orthodontist and a native of McLean, Virginia. She earned her Doctor of Dental Medicine (DMD) degree from Boston University Henry M. Goldman School of Dental Medicine, graduating with High Honors and earning induction into the prestigious Omicron Kappa Upsilon National Dental Honor Society.

Dr. Mojarrad continued her dental training at the University of Pennsylvania, where she earned her Master of Science degree in Oral Biology and her certificate in orthodontics. Her dedication and achievements led her to win the 2018 Eugene L. Gottlieb JCO Student of the Year Award in a nationwide competition.

Passionate about research and advancing dentistry, Dr. Mojarrad’s work on dental mesenchymal stem cells was recognized as the Most Outstanding Research Thesis in 2019 and received the William S. Kress Research Award. Dr. Mojarrad strives to create a welcoming environment where patients feel supported and confident, while educating them to make informed decisions about their care.

Outside the office, Dr. Mojarrad is a Pilates enthusiast, enjoys listening to podcasts, and expressing her creativity through calligraphy and drawing.

Fun fact: Growing up, Dr. Mojarrad was a member of her school’s Irish dance team. She danced for five years and competed with schools across the region.

Dr. Mojarrad treats patients at NVO’s Ashburn, Reston, One Loudoun, and McLean.

Dr. Danielle Robb is a Northern Virginia native who is passionate about creating healthy, confident smiles through personalized care. She completed both her Doctor of Dental Surgery degree and her orthodontic residency at Virginia Commonwealth University, where she graduated as the valedictorian of her dental school class.

An active leader in the orthodontic community, Dr. Robb currently serves as a Director for the Southern Society of Orthodontists. Preceding this regional role, she was the youngest doctor ever elected to the Virginia Association of Orthodontists Board. She has been an active member of the board since 2017 and was proud to serve as President of the organization in 2022.

With more than a decade of orthodontic experience, Dr. Robb enjoys combining the artistry and precision of orthodontics to help patients achieve smiles they are proud to share. As an expert in Invisalign® treatment, she helped design the Invisalign treatment protocols for all of Smile Doctors, the largest orthodontic organization in the nation. She believes in getting to know each patient as a person first and strives to create a supportive, individualized treatment experience.

Outside the office, Dr. Robb enjoys spending time exploring the outdoors with her husband and two young children. She is a huge animal lover, having rescued their dog and two cats.

Fun fact about Dr. Robb: while attending the University of Virginia for her undergraduate degree, she was a member of the Varsity Cheerleading team! Go Hoos!

Dr. Robb treats patients at NVO’s Arlington, McLean, One Loudoun, and Brambleton locations.

Dr. Elvi Barcoma is a board-certified orthodontist who is passionate about helping patients achieve confident smiles. Inspired by the positive impact orthodontic treatment had on her brother’s self-esteem, she chose a career dedicated to making a meaningful difference in the lives of others.

Dr. Barcoma attended the Medical College of Virginia at Virginia Commonwealth University, where she received her Doctor of Dental Surgery degree. During dental school, she was inducted into the prestigious Omicron Kappa Upsilon National Dental Honor Society. She went on to complete her orthodontic residency and earn a Master of Science in Dentistry from Virginia Commonwealth University.

With nearly 13 years of orthodontic experience, Dr. Barcoma is committed to creating positive experiences for her patients and building genuine relationships with the families she serves.

In addition to her clinical practice, Dr. Barcoma has published two scientific articles in The Angle Orthodontist and serves as the Vice President of the Virginia Orthodontic Education and Research Foundation.

Outside the office, Dr. Barcoma enjoys spending time with her husband and daughter, traveling, and trying new restaurants. She also loves music and used to sing in an a cappella group at the University of Virginia!

Dr. Barcoma treats patients at NVO’s Gainesville, Reston, and Brambleton locations.