Invisalign - NOT good chairside manner - Office Staff great - I had a serious health issue that interrupted my orthdontic treatment and Dr. Welch refused to treat me - KEPT my $$ - would not even make appt to take off my attachments. Would not speak to me at all. Very unprofessional. Threw my aligners away - did not even offer them to me....I'd already paid for ALL my treatment, but he would not finish my course of treatment. I would NEVER recommend him to anyone! Go to ANY other orthodontist!! Only reason I went to him was because my friend worked for him. I regret giving him my $$!