He completed his general surgery residency at the Hospital of the University of Pennsylvania and is a Board Certified surgeon. He subsequently completed a surgical oncology fellowship at the Moffitt Cancer Center in Tampa, Florida. Dr. Han also completed post-doctoral research fellowships in surgical oncology at the Hospital of the University of Pennsylvania and at the Moffitt Cancer Center. During his research fellowships, Dr. Han looked at ways to improve response rates to isolated limb perfusion therapy in a melanoma xenograft model, examined the molecular pathways utilized by melanoma cells to gain resistance to BRAF-directed therapy and studied the clinical outcomes of patients with melanomas, sarcomas and endocrine tumors.