Witsarut Nanthasi, MD, is a visiting scholar at the UCSF Edward and Pearl Fein Memory and Aging Center, part of the UCSF Weill Institute for Neurosciences. Dr. Nanthasi’s research focuses on early-onset Alzheimer’s disease, which develops before age 65. He aims to better understand the disease and translate research findings into clinical practice to support earlier and more accurate diagnosis.
Dr. Nanthasi earned his medical degree and completed his neurology training at the Faculty of Medicine Siriraj Hospital, Mahidol University, in Thailand. He subsequently completed a fellowship in behavioral neurology and practiced as a behavioral neurologist at Siriraj Hospital, where he cared for people with conditions affecting cognition and behavior.
From 2025 to 2026, Dr. Nanthasi was an Atlantic Fellow for Equity in Brain Health at the Global Brain Health Institute at UCSF. After completing the fellowship, he joined the Rabinovici Lab at UCSF as a visiting scholar to further develop his clinical and research expertise in neurodegenerative diseases.