Dr. S. Russell Mullen, DDS, MS, PC

Orthodontist And Owner
Dr. Mullen opened Mullen Orthodontics in 2004 and still loves seeing all his patients with beautiful smiles around town.

Being up-to-date in the latest orthodontic techniques and treatments for pediatric, adolescent, and adult patients has always been a priority for Dr. Mullen. He is well versed in Invisalign® and self-ligating bracket systems that can reduce treatment time and increase patient comfort, and uses the latest technologies in orthodontics to maximize smile aesthetics and give the best possible results to his patients. He is a Diplomate of the American Board of Orthodontics, an achievement earned only by about 25% of practicing orthodontists.

Dr. Mullen grew up in Springfield, Virginia as the oldest of four children. He went to the University of Virginia and earned a Bachelor of Arts in Biology. He then attended the Medical College of Virginia School of Dentistry, where he graduated Magna Cum Laude. While attending MCV, he was a member of Psi Omega dental fraternity and received the Fraternal Achievement award; an award given to the senior student who showed the most outstanding service during their four years of school. Dr. Mullen was also inducted into Omicron Kappa Upsilon, a dental honor society whose members are chosen by the faculty of the dental school. He then completed a three-year orthodontic residency at West Virginia University, and earned a Masters of Science in Orthodontics.

Dr. Mullen is a member of the American Dental Association, the Virginia Dental Association, the Northern Virginia Dental Association, the American Association of Orthodontists, and is a member of several dental and orthodontic study clubs. He was elected by his peers to serve as President of the Virginia Association of Orthodontists after being in practice for only 6 years. He is also one of 64 orthodontists in the nation to serve as a Delegate for the American Association of Orthodontists. Living and working in Leesburg with his wife and three young children, Dr. Mullen enjoys hiking, tennis, competing in triathlons, and mountain bike racing. You will see him out on the fields coaching his children most weekends.

  • Northern Virginia Magazine – voted by Dentists in the area as Top Orthodontist, 2014, 2016, 2017, 2018.
  • Washingtonian Magazine – voted by Dentists in the area as Top Orthodontist, 2017, 2018, 2019.
  • Virginia Living Magazine – chosen as Top Orthodontist 2017, 2018
  • *Diplomate, American Board of Orthodontics
  • Member, American Association of Orthodontists
  • Member, American Dental Association
  • Member, Northern Virginia Dental Association
  • Member, Virginia Dental Association
  • Past-President, Virginia Association of Orthodontists
  • Delegate, American Association of Orthodontists

*Honor achieved by only 25% of orthodontists


Our Office Manager
I have been Dr. Mullen’s office manager since 2004 and love the day to day interaction with our patients and their families, as well as, our incredible staff and of course Dr. Mullen. I have four adult children and one grandson who all live close by. I love to travel and experience new adventures when not spending time with my family.

Jaimie Wilson

Front Desk
I was born in South Africa, but moved to the US in 2011. My husband Jack and I got married in 2020 and share a cat together. I have been working for Mullen Orthodontics since 2022 and love the Mullen Orthodontics team and patients.


Orthodontic Assistant
I have been a dental/orthodontic assistant since 1993 and with Mullen Orthodontics since 2010. I find it very rewarding to be a part of an orthodontic practice that has great patient relationships and helps to give patients beautiful smiles. My son and my dog are my world and light of my life. In my free time I enjoy going to the gym, being outdoors and reading and watching documentaries.

Kris Adams

Orthodontic Assistant
I have been working as an orthodontic assistant for 3 years. I love seeing patients as they obtain the perfect smile and confidence it brings them. As a mom of two, I am always on the go. You can find me at a softball or baseball field or at numerous musical gigs.

Jose Reyes

Orthodontic Assistant
Hello! My name is Jose. I have been working in the dental and orthodontic field for eight years. I love being a part of the Mullen Orthodontics family. I enjoy traveling and spending time with my family. I was born in Mexico City and I am fluent in Spanish.

Dr. Karrie Howard Mullen, DDS

Dr. Karrie Howard, Dr. Mullen’s wife, has practiced dentistry in Loudoun County since 2002. She doesn’t practice dentistry at Mullen Orthodontics, but will often be found helping things run smoothly throughout the office.