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Northern California Neuropsychology Forum

Current Board Members

President: Allen Hobbs, Ph.D.

Dr. Hobbs has more that 35 years of experience in healthcare delivery, including Clinical Neuropsychology practice, consulting, teaching, publishing, and research in medical informatics. Graduating with a Ph.D. from CSPP in 1984, he completed post doctoral training in Clinical Neuropsychology at the Santa Clara Valley Medical Center. He spent two years as a Visiting Scholar in Cognitive Neuroscience at Stanford University, and was a co-investigator with the UCSF Dept. of Neurosurgery, on a Robert Wood Johnson Foundation grant, investigating cognitive processes related to TBI patients. Employed by Kaiser Permanente for 23 years, Dr. Hobbs provided neuropsychological assessments and consultations for inpatient and outpatient services, supervised postdoctoral fellows, and provided consultation to the Rehabilitation Advisory Board. Further, he was a principal investigator on three innovation grants pertinent to traumatic brain injury assessment, and was Co-Investigator on a First-of-Kind Grant with IBM related to decision support analytics in health care. Additionally, Dr. Hobbs analyzed highly complex proposed healthcare information technology related to U.S. legislation, regulation, standards and policies, and developed critical responses in collaboration with Kaiser's leaders across regions, functions and entities. He coordinated and facilitated Kaiser's input and involvement in federal cyber security policy, with special focus related to healthcare infrastructure protection. Dr. Hobbs is currently practicing Clinical Neuropsychology in the Northern Bay Area, with research interest related to sports neuropsychology, and the application of Machine Learning and Deep Learning to brain imaging and predictive analytics. Email: president@ncnf.org

President Elect: Harmony J. Satre, Psy.D.

Dr. Harmony Satre is a Clinical Psychologist, Neuropsychologist and Qualified Medical Evaluator (QME). Dr. Satre earned her M.A. and Psy.D. in Clinical Psychology from the American School of Professional Psychology, San Francisco Bay Area Campus, in 2007. She earned her Bachelor's degree in both Psychology and Anthropology from the University of Washington in 2005. Additionally, Dr. Satre has held a number of positions which have strengthened her clinical and assessment skills. She has served as core faculty for a clinical psychology graduate program, has chaired and worked on a number of dissertation committees, and worked as co-director of a university-run assessment training clinic. She continues to teach classes in assessment, and has continued to supervise and train other clinicians by taking on psychological assistants in her practice. Licensed in both California and Washington State, Dr. Satre has over 10 years of clinical practice specializing in child, adolescent, and adult neuropsychological assessment, with particular focus on assessment of learning disability, traumatic brain injury and mood disorders. She enjoys working with Pilots and providing neuropsychological assessment when required by the Federal Aviation Administration (FAA), in addition to workers compensation cases. Dr. Satre also provides forensic assessment and expert witness testimony in the area of early childhood attachment and bonding. Dr. Satre also has a special interest in traumatic brain injury and is currently heading a longitudinal study examining the cognitive effects of closed head injury in athletes participating in medieval sport. Dr. Satre is also a published author in the topic of complex trauma in childhood. Her work can be found here. Dr. Satre has sat on the Board of Directors of the Alameda County Psychological Association, and is a Disaster Mental Health Responder with the American Red Cross. On a personal note, Dr. Satre enjoys the traditional folk art of Rosemaaling, is a voracious reader, and loves spending time with her husband, 1.5-year-old daughter, and French bulldog, Furgie. To learn more about Dr. Satre, please feel free to visit her website or send her an email: presidentelect@ncnf.org

Immediate Past President: Dave Hawkey, Psy.D.

Dr. Dave Hawkey began his interest in neuropsychology under the tutelage of Dr. Drexler for whom he TA’ed and continues to occasionally provide guest speaker engagements. Dr. Hawkey focused his academic career in gaining more knowledge and experience in neuropsychological assessment and currently supervises assessment, including neuropsychological assessment, for Psychological Services Center. Additionally, he works for Kaiser and Psychological Assessment, Inc., where he is predominantly involved in pediatric neuropsychology. Email: pastpresident@ncnf.org

Secretary: Niroshika De Silva, Psy.D.

Dr. Niroshika De Silva recently completed her postdoctoral fellowship at Psychological Services Center in Oakland. Past training sites include San Mateo Medical Center, John George Psychiatric Hospital, and RAMS Fu-Yau project. Dr. De Silva earned her Master of Arts in Child Development from Tufts University in Massachusetts and her doctoral of psychology from California School of Professional Psychology in San Francisco. Her clinical focus is to provide empirically validated treatments for individuals with trauma histories. Similarly, her research focuses on emotional availability in mothers with trauma histories and the relationship between abuse subtypes and the differences in the development of dissociative symptomology. Email: secretary@ncnf.org

Treasurer: Rayna (Macher) Hirst, Ph.D.

Dr. Rayna (Macher) Hirst is an Assistant Professor and Director of Neuropsychology at Palo Alto University, a doctoral program in clinical psychology. She teaches courses on biological psychology and neuropsychological assessment. She also conducts research in neuropsychology and clinical assessment on topics including effort testing and motivation, the effects of chronic marijuana use, sport concussion and recovery, and health-related factors that impact cognitive function in an aging population. She also has a part-time private practice conducting clinical neuropsychological assessments for a broad range of patients. She completed her undergraduate education at Penn State University, where she worked in the Neuropsychology Lab with Dr. Peter Arnett and Dr. Frank Hillary on the Penn State Sport Concussion Study. She completed her M.A. and Ph.D. in Clinical Psychology at the University at Albany, SUNY, with a focus on Neuropsychology and Addictions with Dr. Mitch Earleywine. Her predoctoral internship in psychology/neuropsychology was completed at the VA Ann Arbor/University of Michigan Healthcare System, under the supervision of Dr. Kenneth Adams, Dr. Linas Bieliauskas, and Dr. Henry Buchtel. She completed her postdoctoral fellowship at Dartmouth Medical School in the Brain Imaging Lab, working with Dr. Laura Flashman, Dr. Robert Roth, and Dr. Heather Wishart. Email: treasurer@ncnf.org

Member at Large: Carmen Velázquez, Ph.D.

Dr. Carmen Velázquez is a licensed clinical neuropsychologist with the California Department of State Hospitals, Napa (DSH-Napa). She is employed as a neuropsychologist at this forensic inpatient setting, providing neuropsychological evaluations for patients placed at the hospital by criminal and civil courts. Dr. Velázquez has been admitted as an expert witness in both Forensic Psychology and Neuropsychology. She is also an expert within the hospital for consultation and training in the area of Cross-Cultural Psychology. Dr. Velázquez also provides training and supervision within DSH-Napa’s APA predoctoral internship, primarily in the areas of psychodiagnostic and neuropsychological evaluation, incompetent to stand trial evaluation, and multicultural training/consultation. Dr. Velazquez completed a two-year postdoctoral fellowship in neuropsychology at the University of Miami, Miller School of Medicine. During her postdoctoral fellowship, she was selected as a research scholar with the Mount Sinai Summer Institute for NeuroAIDS Disparities. Her predoctoral internship was at the APA-Accredited Boston University Center for Multicultural Training in Psychology, where she was admitted to the neuropsychology track. She holds her Ph.D. in clinical psychology from Alliant International University, The California School of Professional Psychology, San Francisco campus. Email: membersatlarge@ncnf.org

Member at Large: Laura Natta, Ph.D.

Dr. Laura Natta is the Director of Neuropsychology at Alta Mira Recovery Programs and is responsible for the Comprehensive Diagnostic Assessment of all Alta Mira Clients as well as supervision of Ph.D. and Psy.D. Resident Psychologists and MFT Interns. She obtained a Ph.D. in Clinical Psychology with a specialization in Clinical Neuropsychology from Pacific Graduate School of Psychology at Palo Alto University. Her dissertation work was conducted as a joint effort of the Palo Alto VA and Stanford School of Medicine and she has presented research at regional and national conferences. She has been working with addiction-compromised individuals for over 15 years in a variety of settings including residential, inpatient, acute, and specialty clinics. Dr. Natta has been with the VA Healthcare System since 2009 and has received specialty training in assessment of trauma, behavioral sleep medicine, traumatic brain injury assessment, cognitive rehabilitation, and pain. She serves as Associate Assessment Faculty at various psychology programs in the Bay Area and is a Supervising Assessment Clinician at El Camino Hospital. Email: membersatlarge@ncnf.org

Student Representative: William Bloxham, M.A.

William Bloxham is a fifth-year Psy.D. student at John F. Kennedy University in Pleasant Hill, California. He is passionate about research and has a broad range of interests. Having recently completed his school’s neuropsychology concentration courses, William is currently focusing on presenting his collaborative research projects with members of his school’s faculty. His dissertation, “The Influence of Stereotype Threat on Cannabis Users” is currently in the data collection phase and is examining the effects of stereotype threat on cannabis users undergoing a memory test. His other projects have examined the effectiveness of JFKU’s training methods for students, the need for an EPPP Step-2, and mitigating the impact of stress on decision-making. Additionally for the 2017-2018 year, William contracted for two externships, one supervising trainee assessments at the California Department of Rehabilitation, and another writing MDO evaluations with Alette Coble-Temple Forensic Consulting. William is applying to internship this year and hopes to find a position working with older adults and memory related issues. He hopes to pursue a career in this field and is an early entry applicant for ABPP certification in Clinical Neuropsychology. Email: studentrepresentatives@ncnf.org

Student Representative: Trisha Karsten, M.S.

Trisha Karsten is a fifth-year student in the clinical psychology Ph.D. program at Palo Alto University, with an emphasis in Neuropsychology. Trisha received her undergraduate degree in Psychology, with a minor concentration in Statistics, from Minnesota State University, Mankato, Minnesota, where she assisted in research focusing on impulsivity and gambling. Trisha is passionate about integrating social, cognitive, and affective neurosciences to inform clinical practice. Her dissertation, "Attachment (In)security and Emotional Trauma: Cognitive and Neural Outcomes," is an example of such integration and examines the effects of childhood emotional abuse, attachment (in)security, and their interaction in known networks of emotion regulation and cognitive control. Trisha has also presented her research in the areas of attachment, psychopathology, emotion regulation, and executive function at local and national professional conferences. Trisha's clinical focus is Neuropsychology, and she aims to become a board-certified Clinical Neuropsychologist after graduating from her Ph.D. program, and plans on working in an integrated care environment where she can conduct a wide range of neuropsychological evaluations and supervise trainees. Trisha spent the 2015-2016 training year at LifeMoves, formerly known as InnVision Shelter Network, completing (neuro)psychological assessments and providing psychotherapy to homeless individuals, families, and Veterans. In the 2016-2017 training year, Trisha's primary training focus was administering psychological and neuropsychological assessments, preparing integrated reports, and providing assessment feedback to Veteran patients at the Palo Alto Veteran's Administration Health Care System San Jose Outpatient Clinic. Currently, Trisha is receiving training at Psychological Assessment, Incorporated, and is gaining a wide range of assessment experience, including forensic, neuropsychological,  cognitive, and diagnostic evaluations, as well as experience with competency restoration training and sex offender therapy.  Email: studentrepresentatives@ncnf.org


For more information about our organization please email our Secretary Niroshika De Silva, Psy.D., at secretary@ncnf.org

Past Presidents

NCNF is proud of the hard work and commitment that our San Francisco Bay Area neuropsychologist colleagues have shown over the last 25 years and counting to make our organization what it is today.

2016 - 2017: Dave Hawkey, PsyD

2015 - 2016: Rachyll Dempsey, PsyD

2014 - 2015: Sharon Perlman-Berry, PsyD

2013 - 2014: Eric Freitag, PsyD

2012 - 2013: Charles Filanosky, PhD

2011 - 2012: Brenda Austin, PhD

2010 - 2011: David O'Grady, PhD

2009 - 2010: Nancy Hoffman, PsyD

2008 - 2009: Richard Delmonico, PhD 

2007 - 2008: Howard Friedman, PhD


2006 - 2007: Darryl Thomander, PhD

2005 - 2006: Tina Guterman, PhD

2004 - 2005: Ellen Krantz, PhD

2003 - 2004: Penelope Zeifert, PhD

2002 - 2003: Michael Drexler, PhD

2001 - 2002: Ann Levy, PhD

2000 - 2001: Rosemarie Bowler, PhD

1999 - 2000: Jane Fielding, PhD

1998 - 1999: Tatjana Novakovic-Agopian, PhD


1997 - 1998: Jack Fahy, PhD

1996 -1997: Gayle Hostetter, PhD

1995 -1996: David King, PhD

1994 - 1995: Sandra Portman, PhD

1993 - 1994: Nell Riley, PhD

1992 - 1993: James R. Cole, PhD

1991 - 1992: Karen Bronk Froming, Phd

1990 - 1991: Catherine Long Popell, PhD

1989 - 1990: Vivian Clayton, PhD

1987 - 1989: Leonard Price, PhD

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