Meet the Team

Our professional staff:

  • Offers neuropsychological evaluation of memory and other cognitive functions.
  • Assists with discharge planning and needs for supervision.
  • Serves as key members of multidisciplinary evaluation and treatment teams for Alzheimer's disease and related dementias through the Alzheimer's Disease and Memory Disorders Center at Rhode Island Hospital.
  • Schedules and participates in the important follow-up meeting with the patient and family members to discuss the results of the evaluation and offer recommendations. Provides consultation to families and other caregivers who are experiencing difficulty adjusting to or managing their loved ones' memory difficulties and other cognitive and behavioral problems.
Director of Neuropsychology, Rhode Island Hospital and The Miriam Hospital

Geoffrey Tremont, PhD completed his PhD in clinical psychology from Nova Southeastern University, did his clinical neuropsychology internship at the University of Oklahoma Health Sciences Center, and his fellowship at Brown University. He is an associate professor in the department of psychiatry and human behavior at The Warren Alpert Medical School of Brown University and director of neuropsychology at Rhode Island and The Miriam hospitals.

Dr. Tremont is board certified in clinical neuropsychology and conducts comprehensive neuropsychological evaluations in older adults with cognitive impairments. His primary research interests are psychosocial treatments for dementia caregivers, telephone-based assessment of mild cognitive impairment, and mind-body approaches for mild cognitive impairment. 

David  Ahern, PhD is a staff neuropsychologist and clinical assistant professor of psychiatry and human behavior at The Warren Alpert Medical School of Brown University. His time is divided between clinical care, such as diagnostic evaluations, and research. His clinical interests include cognition in aging populations, dementia, brain injuries, and other relationships between neurological conditions and cognitive and behavioral functioning. His research interests include reducing diagnostic error, improving the efficiency of clinical assessment, and the forensic applications of neuropsychology. He completed his graduate work at the University of Rhode Island, then his clinical residency and fellowship at Brown University. 

Melissa A. Buttaro, PhD is a clinical neuropsychologist at The Miriam Hospital and a Clinical Assistant Professor in the Department of Psychiatry and Human Behavior at The Warren Alpert Medical School of Brown University. She performs neuropsychological evaluations of memory and other cognitive functions for patients referred to the Alzheimer’s Disease and Memory Disorders Center and reviews results and recommendations with patients and their families. She completed her PhD at the University of Connecticut, her predoctoral internship at the VA Connecticut Healthcare System, and her postdoctoral fellowship at Brown University.

Jennifer Davis, PhD is a clinical neuropsychologist and associate professor of psychiatry in The Warren Alpert Medical School of Brown University. She performs neuropsychological evaluations for differential diagnosis and monitoring of memory disorders.  Her research interests include the development of interventions for behavioral and cognitive problems in memory disorders, including driving, caregiver burden, and cognition. She also assists the team in the clinical trials program. She received her graduate training at the University of Utah and completed her internship and fellowship training at Brown University. 


Seth A. Margolis, PhD is a neuropsychologist with Lifespan psychiatry and behavioral health. He specializes in disorders of aging, epilepsy, and the impact of chronic illness on patients’ cognition and mental health. Dr. Margolis performs neuropsychological evaluations for diagnostic and treatment planning purposes and is a consulting member of the Alzheimer’s Disease and Memory Disorders Center and Comprehensive Epilepsy Program at Rhode Island Hospital.

His research primarily focuses on psychosocial aspects of illness and disability, the impact of cognitive impairment and psychiatric symptoms on activities of daily living such as medication management and money management, and the ecological validity of cognitive testing. He holds memberships in the American Academy of Clinical Neuropsychology, International Neuropsychological Society, and National Academy of Neuropsychology.