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Our Doctors

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Dr. Walter Collazo

Dr. Collazo earned his dental degree from Georgetown University School of Dentistry in 1990. Shortly after graduation, he joined the U.S. Army Dental Corps where he completed an Advanced Education Program in General Dentistry. In 1995, following military assignments in Kansas, Germany and Texas, Dr. Collazo established residence in Northern Virginia. Professionally, he is dedicated to providing his patients exceptional clinical care. This pursuit has taken him to develop professional relationships with some of the best advanced dental education centers in the World, like The Pankey Institute and Spear Education. His areas of clinical interest are adult complex restorations, esthetics, dental implants, facial pain, TMJ disorders, and dental sleep medicine. He lectures on those topics to local study clubs and maintains membership in the Greater Loudoun Study Club (where he serves as a restorative advisor), Spear Faculty Club and Spear Study Club. Dr. Collazo believes that each patient presents a unique set of conditions, desires and expectations that must be evaluated and understood. Therefore, he aims to develop a partnership with his patients and to empower them to create a lifetime strategy to achieve comfort, function, beauty and dental health. Outside the office, Dr. Collazo is a family man and sport enthusiast. As a former volleyball athlete, he lends his experience by being on the coaching staff of the Heritage High School Volleyball Program and Club Volleyball circuit. In addition to dentistry and sports, his wife of over 30 years and family (which includes two adult daughters and a dog) are his foundation and greatest success. Dr. Collazo is a preferred Vendor for the Management of Obstructive Sleep Apnea with Oral Appliance Therapy in Reston, Herndon, Sterling and Loudoun County.
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Dr. Amanda Brown

Dr. Amanda Brown has been involved in dentistry for longer than she can remember! The daughter of founder Dr. Douglas Herbert, Dr. Brown joined the practice in 1998 after graduating from the Medical College of Virginia. She is a lifelong native of Loudoun County. Dr. Brown has accomplished extensive advance education and hands on training in orthodontic and restorative dentistry. She strongly believes the functional, structural and esthetic components of a smile contribute to optimal patient well-being. Dr. Brown is a member of several organizations including the American Orthodontic Society, Academy of General Dentistry and the American Dental Association. Dr. Brown trains at the Spear Institute in Scottsdale, Arizona and is an active member of the Greater Loudoun Study Club. She has also invested many hours of continuing education in laser dentistry at the World Clinical Laser Institute. The laser improves accuracy of procedures while helping to eliminate pain and recovery time. Dr. Brown prides herself in being extremely gentle and provides care for children of the practice. Dr. Brown and her husband live in Purcellville with their sons and border collies. In addition to her family and professional schedule, Dr. Brown enjoys hiking, skiing, baking and maintains an extensive vegetable garden.

Dr. Yacoub

Dr. Yacoub is a native of Northern Virginia and grew up in Leesburg. She graduated from the University of Virginia in 2015 and received her dental degree from Virginia Commonwealth University School of Dentistry in 2019. After graduation, she completed a general practice residency at the Washington DC Veterans Affairs Medical Center where she treated veterans with complex medical healthcare needs at one of the busiest and most advanced centers. Following residency, she worked in a small family dental practice in Winchester, VA. She enjoys treating patients of all ages while focusing her clinical expertise on restorative, cosmetic, implant, and removable dentistry. Professionally, she is a member of the Northern Virginia Dental Society, the Academy of General Dentistry, and the American Dental Association. She is passionate about service and participates in Mission of Mercy Projects throughout Virginia as well as Dental Mission Trips to Jamaica, Costa Rica, and Nicaragua. Her love for education pushes her to keep up with the latest advances in dentistry through continued education courses and study clubs. She works with patients to bring confidence to their smile with personalized treatment that produces the best esthetic and functional outcome. In her free time, she enjoys spending time with family and friends, traveling, fine dining, and concerts.

Our Staff

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