Faculty & Staff Directory Home / For Providers & Researchers / Take Action / Faculty & Staff Directory / Baltazar Zavala, MD, PhD Baltazar Zavala, MD, PhD Neurosurgery Resident PGY-6 Current Program: Neurosurgery Residency Start Year: 2019 Medical School: Johns Hopkins University Undergraduate Institution: Harvard College Baltazar Zavala, MD, PhD Neurosurgery Resident PGY-6 Current Program: Neurosurgery Residency Start Year: 2019 Medical School: Johns Hopkins University Undergraduate Institution: Harvard College