Welcome To Danville Dermatology . Dr Slone, Melynda and Marcy are accepting new patients and are pleased to offer new evening hours. For more information or to schedule an appointment please call 859.236.0916. Appointments are generally available within one week. Danville Dermatology is located at Downtown Danville, Danville CA 94526.Dr Salli Slone‧About‧Our services‧Skincare products‧Specials‧Contact.