Aaron R. Ritter, MD

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Aaron R. Ritter, MD



  • Hoag Physician Partners
  • Hoag Specialty Clinic


  • English

About Dr. Ritter

Dr. Ritter is the Larkin Family Endowed Chair in Integrative Brain Health and Director of the Memory & Cognitive Disorders Program in Hoag’s Pickup Family Neurosciences Institute. Board certified by the American Board of Psychiatry and Neurology, he completed a residency in psychiatry at the University of Arizona and a two-year clinical/research fellowship in behavioral neurology at Cleveland Clinic, shaping his focus on how neurological diseases affect cognition and behavior. He has a focus in Alzheimer’s disease, Lewy body disease, chronic traumatic encephalopathy and frontotemporal dementia.

A principal investigator on dozens of research studies and clinical trials, Dr. Ritter has received extramural funding from the National Institutes of Health and Alzheimer’s Drug Discovery Foundation, among others. Before joining Hoag, he was principal investigator for the Brain Health in Professional Athletes Study, the largest study of athletes exposed to repetitive head trauma.
Voted a Top Doctor in the Las Vegas Valley by his peers, he received the Dr. Roy Martin 2019 Las Vegas HEALS Inspired Excellence in Healthcare Award and was named the 2018 Innovator Healthcare Hero by Nevada Business Magazine. His passion for medical education resulted in honors from Cleveland Clinic (Excellence in Teaching Award) and the University of Arizona (Dean’s List in Excellence in Teaching).

Dr. Ritter has authored or co-authored peer-reviewed manuscripts, delivered clinical presentations and keynote addresses, and contributed to textbooks on Alzheimer’s and dementia. His commentary has appeared in the New York Times, ESPN and WebMD.
He earned his medical degree from the University of Colorado.


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National Provider ID (NPI): 1154633808


Board Certification

  • American Board of Psychiatry & Neurology - Psychiatry
  • Neuropsychiatry and Behavioral Neurology -
  • Medical Education - University of Colorado School of Medicine Graduate Medical Education (Medicine)
  • Internship - The University of Arizona (Pediatrics)
  • Residency - University of Arizona College of Medicine-Tucson (Behavioral Neurology and Neuropsychiatry)
  • Fellowship - Cleveland Clinic Lou Ruvo Center for Brain Health (Behavioral Neurology and Neuropsychiatry)


  • Hoag Physician Partners
  • Hoag Specialty Clinic

Area of Focus

  • Psychiatry