There are 48 Periodontists in District of Columbia, serving a population of 672,391 people in an area of 62 square miles. There is 1 Periodontist per 14,008 people, and 1 Periodontist per 1 square miles.
The state of District of Columbia is ranked 14th in Periodontists per capita, and 1st in Periodontists per square mile.