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

Dr. Ronald L. Willcoxon, PHD

Individual provider Psychologist · NPI 1003947698

Dr. Ronald L. Willcoxon, PHD is a Psychologist in Phoenix, Arizona. Practices as a sole proprietor. Licensed in Arizona.

Licensed in
AZ
In the registry since
2007
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

18647 N 20th St
Phoenix, AZ 85024-3074
Phone: (602) 867-9660
Fax: (602) 867-2762
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 3018 (AZ)

Record details

NPI number1003947698
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedMarch 8, 2007
Last updated in NPPESJuly 9, 2007
Mailing address18647 N 20th St, Phoenix, AZ 85024-3074

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