Harol Valenzuela, MD completed medical school at the Universidad Autonoma de Santo Domingo, in the Dominican Republic in 2010. During his Internal Medicine Residency at St. John's Episcopal Hospital, he was chosen by his peers to be Chief Resident. In this position, Dr. Valenzuela worked to improve patient care and provided leadership and support for the other residents. He then moved to Charleston, South Carolina, completing his Nephrology Fellowship at The Medical University of South Carolina.