Baker Neuropsychology
Jason J. Baker, Ph.D.
Phone: (602) 274 - 1462 | Fax: (602) 274 - 7402 | Email: jasonbaker@bakerneuropsychology.com
Jason J. Baker, Ph.D.
Clinical Neuropsychologist
Licensed Psychologist
Dr. Jason Baker specializes in neuropsychological, psychoeducational, and psychological assessment of children, adolescents, and
adults. He has also completed certification training in qEEG/brain mapping assessment, neurofeedback, and use of NeuroField
technologies.

Dr. Baker received his Ph.D. from Texas Tech University in 2003, and completed a two-year postdoctoral residency in Clinical
Neuropsychology at the Barrow Neurological Institute (St. Joseph's Hospital and Medical Center) in 2005. Dr. Baker is a licensed
psychologist in Arizona.

Dr. Baker has given numerous presentations on topics related to neuropsychological and psychological assessment and treatment,
and has had several articles published in professional journals. He has taught both undergraduate and graduate level courses. He
has been an adjunct assistant professor at Midwestern University, Arizona State University, and Argosy University. He has also been
an invited speaker for various organizations, ranging from medical practices to schools.

Dr. Baker has had a great deal of experience in working with children and adults with neurodevelopmental disorders (e.g.,
ADD/ADHD, autism-spectrum disorders, learning disorders, and language disorders), neurological injuries/illnesses, and various
emotional and medical difficulties.
Natalie Loomis, Ph.D.
Clinical Neuropsychologist
Licensed Psychologist
Dr. Natalie Loomis has a unique background as a clinical neuropsychologist, as well as a certified
school psychologist. She has the training to address various ways that developmental delays, medical
conditions, behavioral and social-emotional difficulties can impact a child’s ability to learn and be
successful. She also has a strong background working with learning disabilities and the special
education system. This can help ensure a private evaluation is accepted within the school setting, and
allows her to use her expertise in developing IEP’s and 504 plans.

Dr. Loomis completed her APPIC-approved two-year postdoctoral residency in Clinical
Neuropsychology at Baker Neuropsychology under the supervision of Dr. Jason Baker, becoming a
licensed psychologist in 2019. She received her Ph.D. in School Psychology from the University of
Arizona in 2017, with a minor in Special Education. She has also worked within the school system,
completing her pre-doctoral internship in the Scottsdale Unified School District through an APPIC-
approved internship.

Dr. Loomis currently works with children (ages 2+ years old), adolescents, and adults who are
experiencing a range of difficulties, including: learning, attention, behavior, mood, Autism
Spectrum/social skills, daily living, and executive functioning skills. Whatever the needs, Dr. Loomis
helps parents advocate for different services and resources for their children, and navigate special
education and gifted programming services. She also works with adolescents and adults to assist with
transitioning to independence and success in higher education or work place settings. This includes
assessing potential job areas of interest to help individuals plan ahead to meet their goals.

Baker Neuropsychology
Jason J. Baker, Ph.D.
Phone: (602) 274 - 1462 | Fax: (602) 274 - 7402 | Email: jasonbaker@bakerneuropsychology.com


1515 E. Missouri Ave. Suite #110
Phoenix, Arizona 85014

Baker Neuropsychology
Jason J. Baker, Ph.D.
Phone: (602) 274 - 1462 | Fax: (602) 274 - 7402 | Email: jasonbaker@bakerneuropsychology.com

Baker Neuropsychology
Jason J. Baker, Ph.D.
Phone: (602) 274 - 1462 | Fax: (602) 274 - 7402 | Email: jasonbaker@bakerneuropsychology.com

Baker Neuropsychology
Phone: (602) 274 - 1462 | Fax: (602) 274 - 7402 | Email: jasonbaker@bakerneuropsychology.com
Ashley Voss, Psy.D.
Postdoctoral Resident
Clinical Neuropsychology
Dr. Ashley Voss' background includes working with children and adolescents in a variety of educational,
medical, and mental health settings. She received her Bachelor’s degree in Elementary Education from Arizona
State University, and has a Master’s degree in Special Education from Grand Canyon University. As a special
education teacher, she taught transition and became more interested in the relationship between the brain
and behavior, leading her down a path into the field of psychology.

Dr. Voss began her graduate training at the Arizona School of Professional Psychology, earning a Master’s
degree in Clinical Psychology in 2017. She completed her pre-doctoral internship at the Nonpublic School at
Casa Pacifica Centers for Children and Families, an APA-accredited site in Camarillo, California. She obtained
her doctorate (Psy.D.) in Clinical Psychology from the Chicago School of Professional Psychology in 2019.  

Dr. Voss’ clinical training includes a balance of individual, group, and family therapy within a variety of settings
(e.g., private practice, school, residential, intensive outpatient), as well as conducting neuropsychological
assessments at Phoenix Children’s Hospital. She has experience working with individuals with
neurodevelopmental disorders (e.g., ADHD, learning disorders, autism-spectrum disorders), attachment
disorders, complex trauma, and various neurological injuries/illnesses. She has worked with diverse age
groups from children and adolescents to older adults, providing a keen understanding of development and life
transition issues.