About Our Practice

Scott Allen McQuiston, DDS, FAGD

Meet Scott Allen McQuiston, DDS, FAGD

Dr. McQuiston has called Northern Virginia home since 1994 when he first began private practice. Originally from St. Petersburg, Florida, he received his Bachelor of Science degree from the University of South Florida, followed by his Doctor of Dental Surgery (DDS) from the esteemed program at Virginia Commonwealth University’s Medical College of Virginia (MCV) in Richmond. He followed his DDS degree with a general dentistry residency in Rochester, NY, at the University of Rochester’s Genesee Hospital. A committed and enthusiastic lifelong learner, Dr. McQuiston has pursued study/training at NOVA Southeastern University School of Dental Medicine in Ft. Lauderdale, Florida.

Dr. McQuiston is a member of the American Dental Association (ADA), the Virginia Dental Association (VDA), and the Academy of Osseointegration (AO). He is also a member of the Academy of General Dentistry (AGD), where he has earned the status of Fellow, a distinction awarded only to those clinicians who pass a rigorous exam and meet a threshold of 800 hours of continuing education. Dr. McQuiston has a passion for keeping current on the latest dental technology, including the use of CEREC and 3-D imaging to create dental restorations, place dental implants, and add precision to other treatments.

Dr. McQuiston is an avid fan of fine arts and a talented artist in his own right, which has impacted his dentistry significantly. Providing his patients with full mouth rehabilitative, cosmetic, and implant dentistry services, Dr. McQuiston meets clinical challenges with artistic skill.

Meet our Team

Our friendly, reliable team has been with McQuiston Dental for many years, providing excellent service for our patients. We would be happy to conduct your appointment in English, Spanish, or Vietnamese so that we can best serve your needs. Please contact us today if you have any questions about our office or would like to schedule a time to visit our dentist in Alexandria, Virginia.

Loren Grimes

Loren Grimes, Office Manager

Loren joined our team in 2011, bringing with her several years of customer service experience. Her enthusiasm and attention to detail make her a great asset to the office as well as a friendly face for our patients. Her thorough understanding of dental insurance matters and dental procedures will help maximize your insurance benefits and ease any concerns you may have.


Thai Perrigo, RDH

Thai has been working with Dr. Scott since she graduated from Northern Virginia Community College’s hygiene program in 1998. In her 20 years of dental experience, Thai has always provided patients with gentle yet thorough treatment. She really enjoys getting to know her patients and making them feel as comfortable as possible. Thai understands the importance of patient education, makes sure to thoroughly and cheerfully answer questions, and provides her patients with the highest level of care.

Gretchen, RDH

Gretchen, RDH

Gretchen joined our team in 2019 after relocating from Reno, Nevada. She brings over 20 years of experience and lots of laughs. She takes pride in making patients feel comfortable and safe while delivering gentle quality dental care. Gretchen is passionate about helping patients understand the different ways to take care of their smile. She considers herself a dental geek and is always reading up on the latest research. Gretchen is in the right career field. She loves her job as a dental hygienist!

Dentistry that keeps you smiling.

Our dental team's focus on high quality care is designed to ensure you smile. We do our very best to make your dental visit one to look forward to!

Patient-Focused Experience
How many times have you left the dentist thinking, “Wow! That was a great experience!”? Well, we’re pretty positive you’ll think that after a visit with us! We go out of our way to make our patients’ dental experiences the best around by paying attention to the needs of our patients and customizing their care to fit. Read on to discover how we truly take customer service to the next level!

Dedicated Team
Who better to walk you through an exceptional visit at McQuiston Dental than our caring team?! Whether you’re a new or long-time patient, we’ll greet you with a smile when you come through our doors and do whatever we can to assist you during your time with us. We treat patients like family by taking the time to get to know you personally so we can better meet your needs. You matter to us!

Comfortable Environment
Our friendly team will put you at ease and the environment we’ve created here will too! Apart from our excellent chairside manner and gentle touch, we have a laid back feel to our practice that helps patients feel relaxed. Additionally, we know a key part of comfort is feeling confident and informed. We’ll guide you through your treatment process and answer your questions. It is important to us that your visit is as relaxing as possible.

Dental Expertise
If you’re looking for a knowledgeable and trustworthy dentist, you’ve come to the right place. Dr. McQuiston has over 25 years of experience in the dental field and is joined by an extremely qualified team. Together they deliver a disciplined approach and high standard of quality that our team proudly stands behind. You can always count on us for results that look and feel exceptional!

Advanced Technology
Staying current with the most modern dental technology is our constant goal. Why? Because it benefits you! To improve the accuracy of your diagnosis, we use intraoral cameras and digital imaging. We are committed to your comfort and long-lasting results so we're proud offer guided implant surgery and CEREC same-day crowns. It's with technologies like these that make your visit to our state-of-the-art dental practice one worth smiling about!

Comprehensive Services
Our expertise and advanced technology don't just mean great care — they mean comprehensive care too! We are proud to offer a wide range of services so the majority of your family's dental needs can be met at the hands of experts you already know and trust. From routine cleanings and checkups to more complex treatments that include dental implants and full mouth rehabilitation, enjoy quality dentistry under one roof.