Allison Willis, MD, MS
Professor of Neurology
Attending Neurologist, University of Pennsylvania Health System
Faculty Scholar, Center for Clinical Epidemiology and Biostatistics, University of Pennsylvania Perelman School of Medicine
Faculty Scholar, Institute of Aging, University of Pennsylvania Perelman School of Medicine
Senior Scholar, Leonard Davis Institute of Health Economics, University of Pennsylvania School of Medicine
Faculty Scholar, Center for Real World Effectiveness and Safety of Therapeutics, University of Pennsylvania Perelman School of Medicine
Co-Director, Resource Center for Minority Aging Research, University of Pennsylvania Perelman School of Medicine
Associate Chief of Staff, Neurology, Corporal Michael J. Crescenz VA Medical Center
Associate Director, Center for Health Equity Research and Promotion, A VA Center of Innovation, Corporal Michael J. Crescenz VA Medical Center
Department: Neurology
Contact information
Blockley Hall, Room 811
423 Guardian Drive
Philadelphia, PA 19104
423 Guardian Drive
Philadelphia, PA 19104
Lab: 2155734983
Education:
MD (Medicine)
University of Illinois College of Medicine, 2002.
MSCI (Master of Science in Clinical Investigation)
Washington University School of Medicine, 2013.
MD (Medicine)
University of Illinois College of Medicine, 2002.
MSCI (Master of Science in Clinical Investigation)
Washington University School of Medicine, 2013.
Post-Graduate Training
Medicine Intern, Washington University School of Medicine, 2002-2003.
Adult Neurology Resident, Washington University School of Medicine, 2003-2005.
Adult Neurology Chief Resident, Washington University School of Medicine , 2005-2006.
Movement Disorders Fellow, Washington University School of Medicine, 2006-2009.
Graduate Program in Clinical Investigation, Applied Epidemiology, Washington University School of Medicine, 2009-2013.
Medicine Intern, Washington University School of Medicine, 2002-2003.
Adult Neurology Resident, Washington University School of Medicine, 2003-2005.
Adult Neurology Chief Resident, Washington University School of Medicine , 2005-2006.
Movement Disorders Fellow, Washington University School of Medicine, 2006-2009.
Graduate Program in Clinical Investigation, Applied Epidemiology, Washington University School of Medicine, 2009-2013.
Certifications
Diplomat of the American Board of Psychiatry and Neurology, 2008.
Permanent linkDiplomat of the American Board of Psychiatry and Neurology, 2008.
Selected Publications
Pham Nguyen, Thanh Phuong, Thibault, Dylan, Gray, Shelly L, Weintraub, Daniel, Willis, Allison W: Impact of Anticholinergic Burden and Clinical-Demographic Characteristics on Incident Dementia in Parkinson Disease. Journal of Geriatric Psychiatry and Neurology Page: 08919887241313376, 2025.Nguyen, Thanh Phuong Pham, Le, Vy, Weintraub, Daniel, Willis, Allison W: Impact of pimavanserin on prescribing practices in parkinson disease. Clinical Parkinsonism & Related Disorders Page: 100317, 2025.
Hamedani, Ali G, Willis, Allison W, Ying, Gui-Shuang: Self-reported visual difficulty, age-related eye disease, and neuropsychiatric outcomes in older adults. Ophthalmic Epidemiology 32(1): 103-111, 2025.
Dublin, Sascha, Albertson‐Junkans, Ladia, Pham Nguyen, Thanh Phuong, Pavon, Juliessa M, Hastings, S Nicole, Maciejewski, Matthew L, Willis, Allison, Zepel, Lindsay, Hennessy, Sean, Albers, Kathleen B: Defining key deprescribing measures from electronic health data: A multisite data harmonization project. Journal of the American Geriatrics Society 73(2): 399-410, 2025.
Vo, Anh Khoa, Crispo, James AG, Liu, Lisa JW, Thibault, Dylan, Willis, Allison W, Griesdale, Donald EG, Kramer, John LK, Cragg, Jacquelyn J: Examining the effects of race/ethnicity and other factors on outcomes of care for complex regional pain syndrome type 1 in the United States. PLOS Global Public Health 5(1): e0004022, 2025.
Pham Nguyen, Thanh Phuong, Thibault, Dylan, Hamedani, Ali G, Willis, Allison W: Attitudes and beliefs towards medication burden and deprescribing in Parkinson disease. BMC neurology 24(1): 325, 2024.
Acton, Emily K, Hennessy, Sean, Gelfand, Michael A, Leonard, Charles E, Bilker, Warren B, Shu, Di, Willis, Allison W, Kasner, Scott E: Direct-acting oral anticoagulants and antiseizure medications for atrial fibrillation and epilepsy and risk of thromboembolic events. JAMA NEUROLOGY 81(8): 835-844, 2024.
Aamodt, Whitley W, Sun, Chuxuan, Dahodwala, Nabila, Elser, Holly, Schneider, Andrea LC, Farrar, John T, Coe, Norma B, Willis, Allison W: End-of-life health care service use and cost among Medicare decedents with neurodegenerative diseases. Neurology 103(9): e209925, 2024.
Tropea, Thomas F, Hartstone, Whitney, Amari, Noor, Baum, Dylan, Rick, Jacqueline, Suh, Eunran, Zhang, Hanwen, Paul, Rachel A, Han, Noah, Zack, Rebecca: Genetic and phenotypic characterization of Parkinson’s disease at the clinic-wide level. NPJ Parkinson's Disease 10(1): 97, 2024.
Tropea, Thomas F, Hartstone, Whitney, Amari, Noor, Baum, Dylan, Rick, Jacqueline, Suh, Eunran, Zhang, Hanwen, Paul, Rachel A, Han, Noah, Zack, Rebecca: Molecular Integration in Neurological Diagnosis (MIND) Parkinson''s Disease Inception Cohort Study Protocol. 2024.