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

Dr. Ariel Williamson, PHD

Individual provider Psychologist · NPI 1841793825

Dr. Ariel Williamson, PHD is a Psychologist in Portland, Oregon. Practices as a sole proprietor and works from 2 locations. Licensed in Oregon.

Licensed in
OR
In the registry since
2018
Specialties on file
2
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

3181 SW Sam Jackson Park Rd
Portland, OR 97239-3011
Phone: (800) 452-3563
Fax: (503) 494-4447
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 3440 Market St Ste 410, Philadelphia, PA 19104-3338 — (215) 590-7532

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 3859 (OR)
Psychologist Taxonomy 103T00000X

Record details

NPI number1841793825
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorYes
NPI enumeratedMarch 15, 2018
Last updated in NPPESJanuary 7, 2025
Certification dateJanuary 7, 2025
Mailing address3181 Sw Sam Jackson Park Rd, Portland, OR 97239-3011

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