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Meet The Team



Sinclair R. Davis, DDS

Dr. Davis was born in Richmond, VA to an American father, a Pathologist, and an Argentine mother, a Child Neurologist, and tagged along when they moved with his two older brothers to Bethesda, MD at 3 years old. He graduated Walt Whitman High School before attending Washington College in Chestertown, MD, where he graduated with Honors in three and a half years, majoring in Psychology and Philosophy. He then taught extemporaneous writing and remedial math at Walter Johnson High School in Bethesda, MD. for 1 year before attending the University of Marlyand School of Dentistry during which he completed multiple extended externships in oral surgery at the Washington Hospital Center in 1989 and 1990 and graduated in 1991. He then completed an Oral Surgery Fellowship at the Johns Hopkins Hospital in Baltimore and began his private practice in. 1993, in the Washington D.C. area with special focus on Oral Surgery, Endodontics, and Aesthetics, his three passions in dentistry.



Diana Diaz R.D.H

Diana Diaz was born and raised in Colombia, South America. She served in the United States marine corps for 8 years and has worked in dentistry since 1993. Diana has a deep passion for learning, especially when it comes to anything dental-related. Diana, who, in the past, had been involved with the clinical side of operations, is now undergoing a transition into management. She also has a daughter who attends Louisiana State University and mentioned they both share a love for dogs.



Kristen N. Dowtin G.O.M.

Kristen was born in Washington, DC and has traveled the country performing and working in Theatre since the very young age of 5. She has performed on Broadway, Regional Theatre, and Film. She still performs to this day and she also shares a passion for Dentistry, Patient Care, and Customer Support. She has been in management and Dentistry going on 10 years, all the while still living her dreams! She is excited to be apart of this team and helping to provide the best in patient care!


Georgetown Advanced Dentistry
5185 Macarthur Blvd NW, Suite 200
Washington, DC 20016
Phone: 202-851-6594
Fax: 202-827-8930

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