Skin Lab By Duncan Dermatology 1126 Adams St. Suite B St. Helena, CA 94574 (707) 967-0800 (phone) (707) 967-0870 (fax) (707) 967-0800 (text) Hours: Mon – Sat: 9am – 5pm @SkinLabDuncanDermatology To Schedule An Appointment Book An Appointment, call or text (707) 967-0800, or email us at [email protected].