Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. John Walker III, PSYD

Individual provider Clinical Neuropsychologist · NPI 1871634485

Dr. John Walker III, PSYD is a Clinical Psychologist in Phoenix, Arizona. Qualified in 2002, 24 years ago. Practices with Desert Vista Neuropsychological Specialists PLLC, a 2-clinician group and accepts Medicare assignment. Licensed in Arizona.

Years since qualifying
24
Licensed in
AZ
In the registry since
2007
Specialties on file
6
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

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Practice location Address checks out

3550 N Central Ave Ste 1407
Phoenix, AZ 85012-2112
Phone: (602) 216-6900
Fax: (602) 371-9889
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 3593 (AZ)
Clinical Neuropsychologist Taxonomy 103G00000X · Licence 3593 (AZ)
Cognitive & Behavioral Psychologist Taxonomy 103TB0200X · Licence 3593 (AZ)
Clinical Psychologist Taxonomy 103TC0700X · Licence 3593 (AZ)
Health Service Psychologist Taxonomy 103TH0100X · Licence 3593 (AZ)
Rehabilitation Psychologist Taxonomy 103TR0400X · Licence 3593 (AZ)

Record details

NPI number1871634485
Entity typeIndividual (Type 1)
GenderMale
Credentials PSYD
Sole proprietorNo
NPI enumeratedFebruary 8, 2007
Last updated in NPPESOctober 17, 2018

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 2002 (24 years in practice)
Group practice Desert Vista Neuropsychological Specialists Pllc — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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