He completed his Pathology residency at the University of Pennsylvania and dermatopathology fellowship at Harvard. He is a dermatopathologist with extensive experience on pigmented lesions. He has over 60 peer-reviewed publications and is the associate editor of dermatopathology textbook “Lever’s Histopathology of the Skin." The main body of his work has focused on skin neural crest stem cells and melanoma progression. He is the principal investigator of a R01and R21 grants; the R01 grant is on neural crest stem cells in the hair follicles and their role during melanocyte development and the R21 grant seeks to develop ultrasensitive assays to detect serum circulating antigens in melanoma patients. He is clinically active and is responsible for reading cases for the Pigmented Lesion Clinic and Melanoma Clinics at Penn.