Dentist in Washington, DC

The brief descriptions below are designed to familiarize you with our staff's training, professional credentials and work experience.

John Tsaknis, DDS

Designation: General Dentist

Dr. Tsaknis is a DC native, having grown up in Wheaton, Potomac, Frederick, Rockville and Georgetown. He went to University of Maryland, Collge Park with an undergrad in Zoology and then received his dental degree at the University of Maryland, Baltimore College of Dental Surgery.  Go Terps!!! He continued his training with a two year residency at the University of Maryland Medical System, to include Shock Trauma, Kernan Hospital, Childrens Hospital, Head and Neck Cancer Ward and the Baltimore Veterans Administration.

Dr. Tsaknis received a certificate for anesthesiology and is only a handful of dentist in the DC area trained in sedation.  After working as an associate for a few years, he started Tsaknis Dental & Associates in Ashburn, VA and later started Tsaknis Dental Group in downtown DC. In 2009 Dr. Tsaknis started his third office at D Street NW, and got married to his lovely wife Terri.

Dr. Tsaknis has over 500 hours of continuing education, has been trained and certified on both the Galileos Cone Beam CT scanner and the Cerec Cad-Cam systems for same day crowns. Dr. Tsaknis also provides Oral Sleep Apnea appliances. He is also trained on the latest dental gadgets that you will find through-out the office, to include digital cameras, lasers and fixing the printer at the front desk.

Dr. Tsaknis has been a volunteer Firefighter for the last 18 years, from Montgomery County (Bethesda Chevy Chase Rescue Squad #1), to PG County (Berwyn Heights Vol. Fire Dept. #14), to Loudoun County (Ashburn Vol. Fire & Rescue Dept.. #6, #23 & #22). He has temporarily retired and looks forward to getting back into the hot seat in the future.

In the past, Dr. Tsaknis has liked to race sail boats in Annapolis, race cars at Summit Point, ride motorcylces, play polo in Middleburg and Great Meadows, ski, mountain biking and scuba dive, and now spends his free time with his family.

Indra Mustapha, DDS, MS, PHD

Designation: Periodontist

Dr. Indra Mustapha is a Board Certified Periodontist with the American Board of Periodontolgy. She received her dental degree from Howard University in Washington, DC (1995) and her specialty training in Periodontology from the Mayo Clinic in Rochester, MN (1998). She is currently on Faculty at Howard University College of Dentistry.

Dr. Mustapha was awarded a training grant from National Institutes of Health to pursue her doctoral degree with Johns Hopkins School of Public Health.  She is considered an expert in the association of periodontal disease with systemic diseases such as diabetes and cardiovascular disease.  Dr. Mustapha cares for the overall health of her patients with respect and compassion.  

When she is not practicing dentistry she can be found jogging around the monuments in DC with her dogs or cooking vegetarian creations with her family.


Jeannette Suh, DMD

Dr. Jeannette Suh believes that every person deserves a healthy smile and she wants to help patients achieve it. She received degrees of Bachelor of Science in biology and Bachelor of Arts in psychology from Emory University. Dr. Suh completed her dental education at Tufts University. She continues her education with various study groups and keeps up to date with changes in dentistry by attending dental conferences and continuing education courses. She is part of Northern Virginia dental society and she is fluent in Korean.

During her free time, she likes to check out local restaurants and she is involved with church activities.


Rashad Jefferson, DDS

Dr. Rashad Jefferson is a Maryland native who received his degree of Doctor of Dental Surgery from the University of Maryland, Baltimore College of Dental Surery. Coming from a family of dentists, Dr. Jefferson believes that patient comfort is most important while providing the finest dental care. Dr. Jefferson has completed advanced training in esthetic dentistry, Invisalign, Cerec , as well as placing and restoring implants.

During his free time, he enjoys playing the saxophone, golf and spending time with his children.  


Laura Styron, DDS

Dr. Laura Styron was born and raised in Oklahoma City, Oklahoma. She graduated from Oklahoma State University in 2008 and from the University of Oklahoma College of Dentistry in 2012. She has spent the last 5 years practicing dentistry in Oklahoma City and Denver, Colorado. Laura and her husband Stuart moved to Washington DC in the summer of 2017. Laura is a member of the American Dental Association and the DC Dental Society.


Lauren, RDH

Designation: Dental Hygienist

Lauren is one of our hygienists and has been a part of our team since 2009. Lauren moved to the metro area in August of 2008 from Michigan. She attended Kalamazoo Valley Community college. That is where she received an Associates of Applied Science Degree. She enjoys spending her free time with her husband and sons, playing tennis, and being outdoors.



Tiffany, RDH, BSDH

Designation: Hygienist

Graduated with her Associates of Science in Dental Hygiene at Wayne County Community College District in 2010 and continued her education at the University of Michigan Ann Arbor (UM) where she earned her Bachelor of Science in Dental Hygiene, August 2012. During her education at UM she collaborated with the Michigan Department of Community Health Oral Health Program (MDCH) and Women, Infants, and Children (WIC) nutritional program. She assessed the WIC providers’ views on oral health counseling and availability of associated resources for the MDCH Oral Health Program.

Tiffany is also an active member of the American Dental Hygienists’ Association, Michigan Dental Hygienists’ Association, Detroit District Dental Hygienists’ Association, American Dental Education Association and the American Association of Public Health Dentistry. In October of 2013, Tiffany was the recipient of the Detroit District Dental Hygiene Association Dental Hygienist of the year award.  

Tiffany prides herself in taking her time to make each and every unique patient comfortable during their visit and uses an evidence-based approach to treating and educating her patients. Tiffany relocated to Washington, D.C in June of 2014 from Detroit, Michigan. She enjoys riding her bicycle around the city and is a huge Detroit Tigers baseball fan!  


Chanci Marks, RDH

Chanci is one of our newest hygienists who joined the practice in July of 2017. She is originally from Brandon,Mississippi and graduated from the University of Mississippi Medical Center with a Bachelor's of Science degree in Dental Hygiene. She is also a member of the American Dental Hygienists' Association.

She is new to the D.C. area, so in her free time she enjoys walking and exploring new places in the area. She also enjoys working out and regularly does cycle classes at her local gym. She also loves spending some of her free time with her boyfriend and trying new restaurants in the city. Being a new hygienist, Chanci is always open and eager to learn new skills to apply to her career as a dental hygienist.



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