Neuropsychology Clinic

Neuropsychologists

Penelope Zeifert, Ph.D.Dr. Zeifert is a Clinical Associate Professor (Affiliated) in the Department of Neurology and Neurological Sciences. She is Chief of the Neuropsychology Service at Stanford Hospital and Clinics, and Co-Director of the Stanford Center for Memory Disorders at Stanford University Medical Center. She received her bachelor’s degree from the University of California at Berkeley, and doctorate in clinical psychology from California School of Professional Psychology. She completed pre-doctoral internships at Mt. Zion Hospital and McAuley Neuropsychiatric Institute, St. Mary’s Hospital in San Francisco. She completed a post-doctoral fellowship at San Francisco General Hospital (SFGH) and a second year as a post-doctoral scholar at University of California at San Francisco (UCSF) School of Medicine, based at SFGH.

Prior to coming to Stanford, she was Assistant Clinical Professor of Psychiatry at UCSF, working first as an Attending Psychologist on the Neuropsychiatric Unit at SFGH and later at Laguna Honda Hospital. She has been on staff at Stanford since 1993, first in the Comprehensive Inpatient Rehabilitation Unit and later on the Behavioral Medicine units. She has been the Chief of the Neuropsychology Service since 1997. Active in professional affairs, Dr. Zeifert has served on the Boards of both local and national organizations, and as President of the Northern California Neuropsychology Forum. Dr. Zeifert is currently conducting research on aging and on moyamoya disease. Her other research interests include the cognitive consequences of encephalitis and HIV.

Peter Karzmark, Ph.D., ABPP is Clinical Associate Professor (Affiliated) in the Department of Neurology and Neurological Sciences at Stanford University School of Medicine. He received his bachelor’s degree in psychology at Stanford University in 1969 and his doctorate in clinical psychology at Washington State University in 1983. He completed an NIMH post-doctoral fellowship in clinical neuropsychology at University of Colorado Health Science Center and was board-certified in clinical neuropsychology (ABPP-CN) in 1988.

Prior to coming to Stanford, he worked for 10 years in the nationally recognized traumatic brain injury program at Santa Clara Valley Medical Center. He has been on staff at Stanford Medical Center since 1997. He sees a wide variety of patients, but his areas of expertise are traumatic brain injury, multiple sclerosis, evaluation of competence in performing activities of daily living, and assessment of psychological disorders in those with neurologic symptoms.

Gayle K. Deutsch, Ph.D., ABPP is Clinical Associate Professor (Affiliated) in the Department of Neurology and Neurological Sciences at Stanford University School of Medicine. She received her doctoral degree in clinical psychology at Drexel University in 1994. She completed a pre-doctoral internship at the Brain Behavior Laboratory, Department of Psychiatry at the University of Pennsylvania and a post-doctoral fellowship at the Graduate Hospital in Philadelphia, PA. She is a Diplomate in Clinical Neuropsychology, American Board of Professional Psychology (ABPP).

She has worked as a research scientist at Stanford Institute for Reading and Learning and at Scientific Learning Corporation in Oakland. She was previously an Associate Clinical Professor at UC Irvine Medical Center where she conducted neuropsychological evaluations with individuals with epilepsy. Dr. Deutsch conducts neuropsychological evaluations for adults with a variety of neurological and psychiatricdisorders.

Simon Tan, Psy.D., ABPP is Clinical Assistant Professor (Affiliated) in the Department of Neurology and Neurological Sciences at Stanford University School of Medicine. He is a Diplomate in Clinical Neuropsychology, American Board of Professional Psychology (ABPP). He received his bachelor's degree at Dartmouth College, doctorate in clinical psychology from Yeshiva University, and completed a pre-doctoral internship at the Massachusetts Mental Health Center, Harvard Medical School. Dr. Tan also completed a post-doctoral fellowship specializing in clinical neuropsychology in both adult inpatient and outpatient settings at the Behavioral Neurology Unit, Beth Israel Deaconess Medical Center and Cambridge Hospital at Harvard. Before coming to Stanford, he was a rehabilitation neuropsychologist at NYU Medical Center.

Seoni Llanes, Ph.D. is Clinical Instructor (Affiliated) in the Department of Neurology and Neurological Sciences at Stanford University School of Medicine. She has expertise in the assessment of memory and other cognitive functions in normal aging, neurodegenerative disease, medical conditions and in psychiatric disease. She received her bachelor’s degree from Amherst College and a doctorate in clinical psychology from the Chicago Medical School/ University of Health Sciences. She completed a two-year post-doctoral fellowship in clinical neuropsychology at the Alzheimer’s Disease Center at University of California at Davis and the VA Northern California, Martinez. She previously worked at Kaiser Permanente-Santa Clara, Geriatric Medicine and the Memory Clinic.

Lauren Drag, Ph.D., is a Clinical Instructor (Affiliated) in the Department of Neurology and Neurological Sciences at Stanford University School of Medicine. She received her bachelorís degree from Pomona College and a Ph.D. in clinical psychology from the University of Arizona. She completed a clinical internship in neuropsychology at the VA Ann Arbor Medical Center and a two-year post-doctoral fellowship in neuropsychology at the University of Michigan Healthcare System. Prior to coming to Stanford, she was a researcher at the VA Palo Alto Medical Center and served as Director of the Neuropsychology Area of Emphasis at Palo Alto University. Dr. Dragís research interests are in cognitive aging and traumatic brain injury.

Dr. Thomander is a Clinical Assistant Professor (Affiliated) of Neurology & Neurological Sciences at the Stanford University School of Medicine. He received his doctoral degree in Psychology from Michigan State University. He completed a clinical psychology internship at the Veterans Affairs Palo Alto Health Care System. He is a Diplomate in Clinical Neuropsychology, American Board of Professional Psychology (ABPP).

He has held positions in several Bay Area hospitals where he had clinical, research, administrative, and teaching responsibilities. He has been President of the Northern California Neuropsychology Forum. He has taught courses in neuropsychology at San Jose State University and Alliant International University.

He previously served as director of post-doctoral training in clinical neuropsychology and co-director the Memory Disorders Clinic Stanford Hospital and Clinics. He has participated in research on sleep apnea and cognition at the Stanford University School of Medicine, Department of Psychiatry. He has been a Clinical Neuropsychologist in the Polytrauma Transitional Rehabilitation Program at the Veterans Affairs Palo Alto Health Care System where he provided patient services and conducted clinical research.

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