Dr. Biederman did an excellent job on my son's impacted wisdom teeth - he was eating normally with no pain within 18 hours! However, the pain was all in my wallet, as I contracted for the surgery based on what they told me (they were providers with my PPO, and the co-pay was 10%), but was informed after the fact that they were not part of my PPO, and expected me to pay the PPO discount that my insurance withheld. The business office seemed to not care in the least that I was "out" over $100 extra out of pocket! Make absolutely sure they are not going to come back and rip you off before you let him touch your teeth!