David J. Irwin, MD
Neurology
Accepting new patients
Sees patients age 18 and up
Penn Neuroscience Center - Neurology
Penn Medicine Provider

About me

  • Associate Professor of Neurology

My clinical focus is on cognitive neurology and neurodegenerative disease including frontotemporal dementia, primary progressive aphasia, Alzheimer's disease, Parkinson's disease, dementia with Lewy bodies, amyotrophic lateral sclerosis, progressive supranuclear palsy, corticobasal syndrome and multiple system atrophy. I have a particular interest in young-onset dementia and the behavioral variant of frontotemporal dementia.

My research program focuses on the interface of clinical symptoms and underlying neuropathology in neurodegenerative disease. The purpose of this approach is to better identify clinically, pathologically and genetically homogeneous patient populations for inclusion into clinical trials to efficiently study emerging disease modifying treatments that target the pathogenic proteins specific for each neuropathological subtype of disease (e.g. FTLD-associated with tau or TDP-43 protein inclusions). Currently, the diagnostic standard is neuropathological examination at autopsy, which is a major obstacle for clinical trials in neurodegenerative disease. To address this problem our approach is to "work backwards" to study human brain tissue and measure neuropathology objectively using novel open-source digital image analysis tools; We use a "tissue-guided biomarker discovery” method to translate our findings with the ultimate goal to develop new laboratory and imaging tests to detect pathology in living patients.

Education and training

  • Medical School: Drexel University College of Medicine
  • Residency: Hahnemann University Hospital

What my patients think about me

Average Rating

192 reviews

Comments are submitted by patients and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of Penn Medicine.

October 2025
knowledgeable
October 2025
knowledgeable, took time to get to know my mother as a person/as his patient, patient and thorough. kind and professional
October 2025
felt taken care of
September 2025
his professionalism. and his knowledge of ppa and its treatment.

Insurance accepted

My Locations

Penn Medicine hospital privileges

  • Hospital of the University of Pennsylvania: Has privileges to treat patients in the hospital.
  • Pennsylvania Hospital: Has privileges to treat patients in the hospital.
  • Penn Presbyterian Medical Center: Has privileges to treat patients in the hospital.
Dr. Irwin is a Penn Medicine physician.

Qualifications and experience

Treatments and Conditions