Dr. Young is very nice, however, every time I have seen him, although the waiting area is nice, the exam room is a little bit dirtier, there is no hygienist, no receptionist, and he has re-used his face mask (small spatters of blood were visible, not from me, visible all 3 times). He charged quite a lot compared to other San Francisco dentists, and because my dental plan requires that I pay and he sends the info for reimbursement, he didn't bother to send in the forms for more than 2 months.