Took my daughter to Dr. Chang.She reported she had no cavities.I was turned off by her office manner--i.e patient's with my type of insurance are generally not seen on Sat (but she was doing me a favor )and that this was ,"per your ins read your benefits".However when I called my dental hmo to question this they said this was false-they did not specify any treatment days.Took my daughter to another dentist who found 9.cavities.As you can imagine I was confused to go from none to 9 In a period of 2 mos.Iinsurance paid for "a second opinion" which concurred with the nine cavities that Dr. Chang had somehow not seen or overlooked?!Strange since some of the cavities were significant. I would not reccomend this dentist at all.Made me wonder what other standards she was overlooking.