Our Staff






Our staff is committed to remaining at the forefront of quality clinical care. This means that every patient is treated with compassion, and valued as a vital part of the diagnostic/assessment process. Cases are evaluated holistically, and often include consultations and feedback with family members, friends, treatment providers, and other collateral contacts. Please click on any of the services links for further information, contact us, or call (707) 526-5424 to speak with a member of our professional team.

Meet your team

A little more about who we are


Carolyn Crimmins, Psy.D, ABBHP

Carolyn Crimmins, Psy.D, ABBHP

Executive Director

Neuropsychological Associates of California fills a unique niche in the North Bay as the largest group Neuropsychology practice with a focus on integrated
behavioral healthcare by providing ongoing, individualized, coordinated care and resources. We are also a CAPIC approved 2-year Neuropsychology training program for pre and post-doctoral students wishing to specialize and gain experience in the practice of Neuropsychology. As Executive Director, Dr. Crimmins has facilitated the expansion of scope and

services. We continue to provide our established services, including Psychotherapy, Neurocognitive Rehabilitation, Psychopharmacology, Psychological, Neuropsychological and Forensic Assessment. Areas of expansion include Integrated Behavioral Health Consultation, Case Management, Sports Psychology and Pain Management.

Dr. Crimmins completed post-doctoral specialization training in Neuropsychology following over 20 years of experience working in hospitals, residential treatment centers, outpatient and county agencies, with a focus on
assessment and treatment of post-traumatic stress in children, adolescents, families, and veterans, in the USA and South Africa. Dr. Crimmins is a founding board member of Helping American Veterans Endure (H.A.V.E) and has been active in helping establish a Peace garden at the Santa Rosa Veteran’s Administration to provide organic produce and therapeutic opportunities to veterans.



Allen Hobbs, Ph.D.
Allen Hobbs, Ph.D.

Allen Hobbs, Ph.D.

  Dr. Hobbs has more than 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 postdoctoral 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 cybersecurity policy, with a 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.


Andy O’Neall, Psy.D.Andy O’Neall, Psy.D.

Dr. O’Neall is a clinical psychologist who graduated from the University of Indianapolis School of Psychological Sciences in 2007, where his clinical focus was the integration of medical treatment and psychotherapeutic interventions. He completed his pre-doctoral internship at the New Mexico State University College Counseling Center.  His residency hours were completed at Napa State Hospital, where he would work for approximately 7 additional years. Dr. O’Neall also has worked in different areas of private practice since graduating, doing work that includes psychotherapy of individuals, couples, and groups. He has worked providing behavioral assessment and planning for children through adults with cognitive and developmental challenges. He has worked in the assessment and accommodation of persons with learning challenges in schools and work. Overall, Dr. O’Neall works to integrate biological, psychological, interpersonal, and testing information as well as drawing from his experience in a variety of settings to provide individually designed psychotherapeutic interventions that work best.

Dr. O’Neall is a native of Indiana. He earned his bachelor degree from Wabash college, majoring in Psychology as well as history. He has an interest in history, literature, culture, language, and philosophy and how these shape human experience.


Gerard Chambers Psy.D., Ph.D.

 Gerard Chambers Psy.D., Ph.D.

 Clinical Neuropsychologist PSY

Dr. Chambers is a clinical neuropsychologist located in Capitola, San Jose, and Santa Rosa California. Dr. Chambers completed a post-doctoral didactic education program in neuropsychology at Palo Alto University in 2015. He completed his two-year post-doctoral fellowship in Clinical Neuropsychology with Neuropsychological Associates between July 2013 and July 2015 under the supervision of Dr. Michael Fraga Psy.D. MSCP, Certified Clinical Neuropsychologist. His private practice work consists of performing court-ordered evaluations, expert witness testimony, social security disability and neuropsychological evaluations. Dr. Chambers also has extensive experience assessing, tutoring, and procuring test accommodations for those with and without disabilities aiming to pass the EPPP and other similar standardized tests. Dr. Chambers worked as a psychological assistant under renowned behavioral psychologist and autism expert Dr. Charles Stevens. Dr. Stevens was the psychologist that worked with the original “Rainman,” the basis of the 1980s movie that highlighted the life of the autistic savant. Dr. Chambers also spent 8 months as a consultant with the 1-87 Infantry from the 1st Brigade Combat Team out of Ft. Drum New York, one of the most rewarding and humbling experiences of his career. Dr. Chambers lectures for AATBS nationally for those seeking to pass the EPPP and he has taught at EFSC since 2004 in online and bricks and mortar capacities.



Marina V. Swanson, Psy.D.Marina V. Swanson, Psy.D.

Post-Doctoral Intern/Psychological Assistant

   Dr. Swanson is a post-doctoral Intern and graduated from John F Kennedy University. She earned her Doctorate in Clinical Psychology in 2015, and Masters of Arts in Clinical Psychology in 2013. She graduated Summa Cum Laude from National University with a Bachelor Of Arts in Psychology. Dr. Swanson trained in the areas of Cognitive Behavioral Treatment, Brief Psychodynamic Therapy, Crisis Intervention, Trauma Therapy, Harm Reduction Therapy, Professional Assault Crisis, and SBIRT. Dr. Swanson has worked at the Solano County Claybank Detention Center, Anka Behavior Health, and Child Protection Services of Contra Costa County.  She specializes in the assessment of neurodegenerative diseases, mTBI/TBI, neurocognitive rehabilitation. Dr. Swanson is a Member of the American Psychological Association and the Western Psychological Association. She authored The Psychological Acculturation of Immigrants available on Amazon.com

Dr. Swanson also has a BA in Psychology from National University, Sacramento, Masters in Pedagogical Studies from Irkutsk Pedagogical State University, Masters in Linguistics from Armavir Linguistics University, BA in Classical Music from Angarsk State Pedagogical College.



Kris Verroulx, Psy.D.

Ms. Verroulx began her predoctoral internship with Neuropsychological Associates in June 2016.  She is working toward her Doctorate in Clinical Psychology, focused on neuropsychology, from John F. Kennedy University.  As a clinician, her primary aim is continuity of patient care after neuropsychological assessment.  As such, she seeks to involve family members and other helpers to co-create and implement recommendations to optimize the patient’s functioning.  Her practica experience included neuropsychological assessment with San   Francisco Neuropsychology Specialists, psychological assessment through SOS Counseling, and therapeutic work with children and adults.  Specific training and focus were on child and forensic neuropsychology.  Additionally, Ms. Verroulx was a doctoral level teaching assistant for psychological assessment courses and bachelor level psychological theory classes.  She has presented research at the American Psychological Association’s 2016 conference and given training to community agencies on crisis management, risk assessment, and child development.  Ms. Verroulx is also a licensed Marriage and Family Therapist, with a private practice in Petaluma.  Prior experience includes supervising a group home for boys with severe emotional disturbance, residential care of adults with mental illness, and paraprofessional work in classrooms for children with emotional and behavioral challenges.



Eve Keist MS


I am a pre-doctoral intern, working toward my Ph.D. in Clinical Psychology, with a specialization in forensic psychology, and concentration in neuropsychology. I received my Master of Science in Applied Psychology from Walden University in 2016, Bachelor of Science in Psychology, with an emphasis on Applied Behavioral Analysis (ABA) from Purdue, and Associate of Occupational Studies in Nursing.  I worked as a nurse in family practice and drug and alcohol rehab for ten years, Child Development Services for the Army Department of Defense (DoD), and professor of allied health and general psychology. I have experience in family and multicultural dynamics, depression and anxiety, personality and developmental disorders. My research and interest include neurodevelopmental and neurocognitive problems, biological influences of negative behavior, and long-term behavioral and physical effects of medication on children and adolescents. I am a member of American Medical Technologists (AMT), American Psychological Association, and Honor Society.



Jill White Esq., J.D.,  CA

Jill White Esq., J.D.,  CA

Staff Counsel/Attorney

Attorney Jill White is a seasoned family law attorney who, after many years as a partner in a successful litigation firm, shifted to collaborative practice and mediation. Ms. White is committed to helping patients negotiate relational transitions respectfully, in a manner which allows for the equitable realization of individual needs without formal litigation. Her genuine appreciation of the psychological and emotional aspects inherent in bitter disputes drew Jill to Integrative Mediation.

Ms. White is a member of the International Academy of Collaborative Professionals and the Collaborative Council of the Redwood Empire.

Sarah Lawrence College, New York; 1986 BA

Middlebury College, Vermont: MA / Paris France

McGeorge School of Law, Sacramento CA: JD

Juris Doctor, 1993, Admitted to California State Bar

Advanced International Studies, Salzberg, Austria