People

Taylor Johnson

Staff Research Associate

Taylor joined the Yokoyama Lab at the Memory and Aging Center from Cal Poly San Luis Obispo where he studied both microbiology and enology. Taylor also helps manage the Biospecimens Core. Prior to his start at UCSF, Taylor worked as a Research Assistant at Cal Poly in cell culture utilizing various commercial probiotics and Vibrio parahaemolyticus to understand human intestinal epithelial and immune cell relationships upon probiotic and pathogenic challenge.

Aimee Kao, MD, PhD

Professor

Aimee Kao, MD, PhD, is an Associate Professor of Neurology at the University of California, San Francisco and a John Douglas French Foundation Endowed Professor. She directs the UCSF Tau Consortium Human Fibroblast and Induced Pluripotent Stem Cell (iPSC) Bank and leads the UCSF Alzheimer Disease Research Center (ADRC) Neurodegenerative Disease Biomarker Core. Dr.

Samhita Katteri

Assistant Clinical Research Coordinator

Samhita graduated from UC Berkeley in May 2022 with a degree in cognitive science. During college, she worked in the Cognitive Development & Learning Lab with Dr. Ny Vasil and Dr. Alison Gopnik researching the development of causal reasoning in children. She completed her undergraduate thesis in the Gopnik Lab, exploring the relationship between Generic Language and Causal Stability in adults.

Sarah Kaufman, MD, PhD

Behavioral Neurology Clinical Fellow

Sarah Kaufman received her undergraduate degree in Molecular and Cell Biology, with a focus in Neuroscience from the University of California, Berkeley. She completed her MD/PhD degrees through Washington University in St. Louis MSTP. Her graduate research focused on tau aggregation and tau strain biology in the laboratory of Marc Diamond. After completing her dual degree she began Neurology residency at the University of California, San Francisco.

Niall Kavanagh

Communications Officer, GBHI

Niall Kavanagh is a communications officer with the Global Brain Health Institute (GBHI). Based at UCSF, he is responsible for developing and sharing the stories and messages of GBHI and the Atlantic Fellows for Equity in Brain Health.

Margo Kersey

Assistant Clinical Research Coordinator

Margo graduated from UCLA with a BS degree in Applied Mathematics and a minor in Cognitive Science. She has previously worked at UCLA’s Computational Vision and Learning Lab and the German research center Forschungszentrum Jülich. Margo currently works in the UCSF Dyslexia Center, with a focus on math cognition and neuroimaging.

Rachel Kiekhofer

Research Data Analyst

Rachel joins the Memory and Aging Center as a Research Data Analyst on the Care Ecosystem team, where she manages the Care Ecosystem codebase and collects data through interviews with study participants. In this capacity, she hopes to improve care outcomes for dementia patients and their caregivers.

Lana Kinnear

Assistant Clinical Research Coordinator

Jana Klein

Operations and Development Officer

Jana’s life is a continuous discovery of new passions and interests. Born and raised in Anchorage, Alaska, Jana’s passion for the outdoors, adventure and curiosity was determined at birth. In between camping and fishing with her family, she competed on a high level on the junior tennis circuit and eventually became a recruited athlete to Cornell University. This is where she found her passion for genetics and how this science impacts people and their lives. She went on to the University of California, Berkeley School of Public Health and completed a Master of Science in genetic counseling.

Marguerite Knudtson

Clinical Research Coordinator

Daisy is a clinical research coordinator for the Frontotemporal Dementia: Genes, Images and Emotions Program Project Grant at the UCSF Memory and Aging Center. She received her BA degree from UC Berkeley in Cognitive Neuroscience. There, she worked with Dr. Bob Knight on a study investigating the neurological mechanisms of intentional forgetting, and with Dr. Tania Lombrozo on a study looking at the relationship between one’s beliefs in free will and determinism, and their moral behavior.
 

Mary Koestler, RN, PhD

Project Administrator and Trials Nurse

Mary Koestler joined the Memory and Aging Center’s clinical trials unit as project administrator and trials nurse in July 2007. Dr. Koestler completed a master’s degree in nursing with an emphasis in clinical research management at UCSF followed by a PhD degree. She currently manages industry-sponsored FDA Phase I-III Alzheimer’s disease trials. Dr. Koestler is credentialed by the Association of Clinical Research Professionals (ACRP).

Joel Kramer, PsyD

Director of Neuropsychology

Dr. Kramer is a Professor of Neuropsychology in Neurology, the Director of the Memory and Aging Center Neuropsychology program, and the John Douglas French Alzheimer’s Foundation Endowed Professor at UCSF. He earned his doctorate in psychology at Baylor University and completed a postdoctoral fellowship in neuropsychology at the Martinez VA hospital. Dr. Kramer is board certified in clinical neuropsychology.

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