With a focus on children and young adults dealing with ADHD, learning disabilities, executive functioning deficits and twice exceptionalism, NEST Psychological is about guiding individuals in creating positive changes in their lives. However, we are not just about helping children and young adults with their problems. We offer parents consultations for how to be an effective advocate for their child in parenting and special education, as well as in the world at large. 

Founded in 2018, NEST Psychological brings an expertise in Neuropsychological, Early childhood, and School Testing. This foundation allows us to maximize our effectiveness in helping children excel in our society no matter what needs or disabilities they may have. We highlight your child’s individual strengths and weaknesses in a practical and easy to understand formal.


Our Team

Sarah Bald, PsyD

Sarah Bald, PsyD, founder of Nest Psychology LLC

Sarah Bald is the founder and lead psychologist of NEST Psychological. Dr. Bald obtained her Doctoral and Master’s degrees in Clinical Psychology at the Arizona School of Professional Psychology. She completed her pre-doctoral internship with the Avondale Elementary School District in order to fully understand and appreciate the learning environments of her clients. She completed her post-doctoral fellowship at Beljan Psychological Services where she continued to practice after licensure. ‍


Dr. Bald’s clinical experience includes pediatric neuropsychology, child and family psychotherapy, and parenting. She also assists families in navigating the special education process through education and advocacy. Dr. Bald has presented her research at the annual scientific conferences of the American Neurological Association and the Gerontological Society of America. She has abstracts published in The Gerontologist and the Journal of Neuropsychiatry and Clinical Neurosciences. Her research interests include lifespan development, twice exceptionalism, and Attention Deficit Hyperactivity Disorder.

Dr. Bald is a member of the American Psychological Association (APA) and the Arizona Psychological Association (AzPA). She currently serves as the co-chair of the Early Career Psychologist Committee for AzPA and has held other various leadership roles in the psychological community.

Sarah Norbeck, PsyD

Sarah Norbeck PsyDDr. Norbeck is a licensed Clinical Neuropsychologist specializing in adult and geriatric neuropsychology. She received her Doctorate of Clinical Psychology and Master’s of Art in Clinical Psychology from APA-accredited Arizona School of Professional Psychology in Phoenix, AZ. She also received a Master’s of Science in Community Counseling and Bachelor’s of Science in Psychology with a minor in Addiction Counseling in at the University of Mary in Bismarck, North Dakota.

Dr. Norbeck completed her pre-doctoral internship at the Nebraska-Western Iowa Veterans Health Care System in Norfolk, Nebraska where she received training in polytrauma neuropsychological evaluations and was certified in Cognitive Processing Therapy to treat post-traumatic stress disorder from various etiologies. Following the completion of her pre-doctoral internship, she successfully completed her post-doctoral fellowship in neuropsychology at a private practice in Scottsdale where she obtained specialized training in Alzheimer’s/Dementia, mild cognitive impairment, and acquired brain injuries/TBIs. In addition, she received training in forensic neuropsychology for mitigation and personal injury cases.  For 5 years she assisted the staff neuropsychologist for the Arizona Cardinals as a consultant by administering neuropsychological assessment for pre-season baseline concussion screenings.

Dr. Norbeck evaluates individuals with neurological disorders, degenerative neurological conditions, traumatic brain injuries, dementia, memory loss, post-concussion syndrome, stroke/TIAs, ADHD, executive dysfunction, and cognitive difficulties related to mood disorders.

Payton MacKey, M.Ed

Payton MacKey M.EdPayton Mackey is a second-year doctoral student in the Clinical Psychology program at Northern Arizona University. She completed her Bachelor’s in Psychology from the University of Colorado and received a Master’s degree in Education with an emphasis on educational psychology from Northern Arizona University. She has worked in both preschool and middle school settings and appreciates the diverse needs of students at any level. Development is a unique process that differs for each individual. Payton is excited to continue her study of psychology as it applies to all ages under Dr. Bald, and values the relationships and insights she will gain at NEST Psychological.

Dr. Baxter

Dr Baxter of NEST PsychologicalDr. Baxter is the designated office greeter at NEST Psychological, although most days you will find him sleeping on the job. He particularly enjoys pets, biscuits, and long walks. Dr. Baxter is very docile and good with young children and has been known to help in session. If you or your child has an allergy or fear of dogs, please let us know. We’re happy to give him a day of R&R at home.