I have been with Dr. Hayashi for almost 20 years and he is now taking care of my husband, and my young daughter. I have been seeing Dr. Hayashi since I was a teenager. I have also referred a lot of friends to his practice. His staff are always very courteous and efficient. I still go to Dr. Hayashi for dental services even though I have moved out of SF for over 7 years. Dr. Hayashi has taken excellent care of my husband for two of his root canals. His office also offers Saturday appointments and his office partner, Dr. Gail Duffala is also an excellent dentist.