Clinical Researchers

Rebecca Hoyumpa, DNP, FNP-BC

Sarah Horn, MD

Sarah Horn, MD, is a movement disorders specialist with expertise in the diagnosis and management of Parkinson’s disease and related neurodegenerative parkinsonian disorders. Dr. Horn has an interest in comparative effectiveness research and clinical trials and is currently the principal investigator for an actively enrolling pragmatic clinical trial funded by the Alzheimer’s Association studying the long-term effects of quetiapine versus pimavanserin for psychosis associated with Parkinson’s disease and dementia with Lewy bodies in a real-world setting.

Robin Hilsabeck, PhD​, ABPP

Margaret Flanagan, MD

South Texas Alzheimer’s Disease Research Center Neuropathology Core Leader

Director of the Brain Bank at the Biggs Institute

Nun Study Director