Program Administrative Structure

Our fellowship program is uniquely embedded across the Department of Neurology, chaired by Robin Brey, MD, and the Biggs Institute for Alzheimer’s and Neurodegenerative Diseases, directed by Sudha Seshadri, MD.

The joint program offers clinical, service, and research opportunities across a broad range of neurological populations such as epilepsy, multiple sclerosis and Parkinson’s disease, in conjunction with in-depth training in differential dementia diagnosis.

The fellowship is co- directed by Jeremy Davis, PsyD, ABPP and A. Campbell Sullivan, PsyD, ABPP.

The training committee is comprised of a group of faculty members with program coordination by Monica Perryman.

Brittany Cerbone, PhD

Brittany Cerbone, PhD, joined the clinical faculty as an Assistant Professor in the Department of Neurology at UT Health San Antonio in 2022, after completing her residency in clinical neuropsychology at Barrow Neurological Institute. She previously completed her doctoral degree at the University of Houston and pre-doctoral internship at the Phoenix VA Health Care System. Her clinical and research interests focus on older adults and neurodegenerative populations, and she works with the surgical teams for movement disorders and epilepsy, conducting pre/post-surgical evaluations and Wadas. During her free time, she enjoys exploring the city with her dog, hiking, and trying new restaurants.

Jeremy J. Davis, PsyD, ABPP

Jeremy J. Davis, PsyD, ABPP, is an Associate Professor Clinical in the Department of Neurology with an appointment in the Biggs Institute for Alzheimer’s and Neurodegenerative Diseases at UT Health Antonio. As a board-certified neuropsychologist, his primary clinical interests include evaluation and treatment of individuals with a history of neurologic conditions ranging from movement disorders and dementia to stroke and other cerebral insults. His research interests include performance and symptom validity in neuropsychological evaluation, clinically optimized evaluation methods, and fiscally viable practice models. He serves as co-director of the postdoctoral fellowship. Dr. Davis joined UT Health San Antonio in January 2021. He was previously in the Department of Physical Medicine and Rehabilitation at the University of Utah School of Medicine from 2011 until 2020.

Robin C. Hilsabeck, PhD, ABPP

Robin C. Hilsabeck, PhD, ABPP, is Professor and Division Chief of Clinical Neuropsychology in the Department of  Neurology at UT Health San Antonio and Glenn Biggs Institute for Alzheimer’s and Neurodegenerative Diseases. Dr. Hilsabeck earned her doctorate in clinical psychology with a major area of study in neuropsychology from Louisiana State University, completed an internship in clinical psychology with an emphasis in clinical neuropsychology at The University of Oklahoma Health Sciences Center, and completed a 2-year postdoctoral fellowship in neuropsychology at University of California San Diego. Prior to joining UT Health San Antonio in 2023, Dr. Hilsabeck was an Associate Professor of Neurology and Head of Neuropsychology at The University of Texas at Austin Dell Medical School and Director of the Comprehensive Memory Center, an interprofessional dementia specialty clinic, at UT Health Austin Mulva Clinic for the Neurosciences. Her clinical interests include neurodegenerative diseases, stroke, traumatic brain injury, multiple sclerosis and cancer. Research interests include psychometrics and test development, use of technology for detection and treatment of cognitive impairment, and psychoneuroimmunology. Dr. Hilsabeck receives research funding from the National Institutes of Health and has over 80 publications and 180 workshop and conference presentations. She is on the editorial boards of Archives of Clinical Neuropsychology, Neuropsychology Review and The Clinical Neuropsychologist and is Past President of the National Academy of Neuropsychology. Dr. Hilsabeck is an avid sports, music and animal fan. In her spare time, she enjoys spending time with her husband, son, daughter-in-law and two French Bulldogs.

Johanna M. Messerly, PsyD

Dr. Messerly hails from the frozen tundra of northern Wisconsin but has found a home in San Antonio, Texas both professionally and personally. She was delighted to join clinical faculty at the UT Health San Antonio, Department of Neurology, in 2019 following completion of her fellowship in clinical neuropsychology at the South Texas Veterans Health Care. Prior clinical and academic training includes completion of a neuropsychology focused internship at the Central Arkansas Veterans Health Care System and a Doctor of Psychology degree from Nova Southeastern University. Her professional interests predominantly focus on clinical care and service both towards the UT Health infrastructure and community at large. Her clinical interests are broad and include interfacing with the movement disorders team for pre/post-surgical DBS evaluations and conducting brief cognitive screening assessments for individuals with multiple sclerosis as well as working with the older adult, neurodegenerative, epilepsy, stroke, traumatic brain injury and autoimmune populations. She is passionate about connecting patients to ancillary clinical services for optimization of mental health and quality of life as well as using neuropsychological evaluations as a stepping stone for intervention.

Stephanie Santiago-Mejias, PhD

Stephanie Santiago-Mejias, PhD, is a proud Boricua from the enchanting island of Puerto Rico that embarked on her journey at the \ Biggs Institute for Alzheimer’s and Neurodegenerative Diseases at UT Health San Antonio in 2023, assuming the role of Assistant Professor. She received her master and doctorate degrees in Clinical Psychology from the School of Behavioral and Brain Sciences at Ponce Health Sciences University and completed her pre-doctoral internship in the Adult Neuropsychology track at the Ponce Health Sciences University-Psychology Internship Consortium (PHSU-PIC) in Puerto Rico. Driven by her passion for neuropsychology, she completed the Clinical Spanish/Cross-Cultural Adult Neuropsychology fellowship at Baylor College of Medicine in the vibrant city of Houston, Texas. She has experience in the practical application of neuropsychological assessment batteries to diverse populations, each characterized by unique cultural backgrounds and clinical presentations, including Spanish-speaking individuals. Her primary research and clinical interests include the neurocognitive assessment of neurological and neuropsychiatric disorders, specifically Alzheimer’s disease and related dementias and stroke, in individuals from culturally diverse and underserved backgrounds, the neuropsychology of bilingualism and development of evidence-based treatments to minimize disability. With a dedication to actionable change, she is guided by the AACN-approved Relevance 2050 Initiative to enhance accessibility to our services. Inside and outside of work, she finds joy in forging meaningful connections through curiosity. In her leisure time, she treasures quality time spent with her family and friends, and often engages in outdoor activities, particularly hiking and camping – though she admits that the sight of a lizard can turn her into an Olympic-level sprinter.

A. Campbell Sullivan, PsyD, ABPP

A. Campbell Sullivan, PsyD, ABPP is an Associate Professor at the Biggs Institute for Alzheimer’s and Neurodegenerative Diseases and the Department of Neurology at UT Health San Antonio. Dr. Sullivan earned her PsyD in Clinical Psychology from the PGSP-Stanford Consortium. As a graduate student, she developed an interest in young-onset dementia syndromes and structured her pre-doctoral internship at the University of Maryland-Baltimore VA Consortium and postdoctoral fellowship at Johns Hopkins School of Medicine to focus on the cognitive assessment of rare and/or atypical neurodegenerative syndromes. Dr. Sullivan serves as Director of the MIND Clinics and Co-Director of the FTD Program. She is the site PI for ALLFTD, a longitudinal, multisite project studying most varieties of FTLD. Dr. Sullivan also serves as Clinical Core Director for our NIA-designated Alzheimer’s Disease Research Center, and she is heavily invested in providing comprehensive support and education for our caregivers – especially those managing more challenging behavioral dementias. Outside of work, Dr. Sullivan enjoys spending time with her husband and three daughters!

Amy E. Werry, PsyD

Amy E. Werry, PsyD, earned her doctorate in Clinical Psychology from Pacific University in Oregon. She completed her pre-doctoral internship at the University of Texas Health Science Center in Tyler and postdoctoral fellowship in Clinical Neuropsychology at Dartmouth-Hitchcock Medical Center and Geisel School of Medicine at Dartmouth College. Dr. Werry enjoys a broad clinical practice within the neurology clinic. Her research focus has historically been in evaluating different neuropsychological test norming practices, with a primary aim to align neuropsychological practices with socially just and culturally appropriate testing and norming. Outside of work, she loves to travel and spends as much time outdoors as possible, typically playing tennis, hiking, mountain biking and kayaking.