BEWARE OF DC DENTAL GROUP (DR. CHANG)! My boyfriend and I went here since a friend referred me to her dentist she goes to and it was the worst/unprofessional experience we ever had. We had appointments set for our routine x-rays and cleaning and the doctor told us after we were in his office for over an hour just taking x-rays that he had to be somewhere and for us to come back another day when hes there to finish our appt. My boyfriend was trying to ask him a few questions about his teeth and he looked in his mouth for 4 seconds then said to him his teeth look good and healthy. So he basically left us in our chair with his girls in the office apologizing for him walking out with no explanation (WHAT A TOOL.)