When I arrived at Dr. Kao's office, I was kept waiting one half hour for an appointment that I was 15 minutes early for. The front desk staff was rude. This was an indication of what I would encounter with Dr. Kao. His staff reflects his attitude. I was told point-blank, "I could help you keep your teeth for 5, 10, 15 years, but it's too much trouble." He rushed through the evaluation and let me know that he had a very important lunch engagement he had to go to.