I've been a patient of Dr. Krieger for over a decade. She is a Georgetown University graduate and really has done an outstanding job with my teeth. The other negative review here sounds suspicious because it focuses on instant results and money. Dr. Krieger is a well-qualified, high-end general dentist, not a McDonald-land dentist. I believe she is part-time now, but worth the wait. If you want a classy, pleasant dentist, she's it.