I've been Dr. Nazarian's patient for more than twenty years and I can say with certainty, she is one of the best dentists in the US. I wouldn't trust my teeth to anyone else.
She has done fillings for me and general cleaning and maintenance. Her approach is very personal, specific and thorough. She treats you like a human being and respects your needs. She clearly explains your options and does not push any particular treatment.
I have seen her cosmetic work on other patients and the results are very impressive.