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

Dr. John Byron Gassaway, PSYD

Individual provider Clinical Psychologist · NPI 1699033506

Dr. John Byron Gassaway, PSYD is a Clinical Psychologist in Luke AFB, Arizona. Practices as a sole proprietor. Licensed in Arizona.

Licensed in
AZ
In the registry since
2012
Specialties on file
2
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

7219 N Litchfield Rd 56 Mdg
Luke AFB, AZ 85309-1529
Phone: (602) 989-0982
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 4259 (AZ)
Clinical Psychologist Taxonomy 103TC0700X · Licence PSY-004259 (AZ)

Record details

NPI number1699033506
Entity typeIndividual (Type 1)
GenderMale
Credentials PSYD
Sole proprietorYes
NPI enumeratedApril 27, 2012
Last updated in NPPESOctober 29, 2025
Certification dateOctober 29, 2025

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