IndividualActive
Ariel Williamson, PHD
NPI 1841793825 · Clinical Psychologist · Portland, OR
Provider details
- NPI number
- 1841793825
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Psychologist103T00000X
Behavioral Health & Social Service Providers
Profile Score
Established profile(66/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
3181 Sw Sam Jackson Park Rd
Portland, OR 97239-3011
Phone: (800) 452-3563
Fax: (503) 494-4447
Street-level locationGet directions
Mailing address
3181 Sw Sam Jackson Park Rd
Portland, OR 97239-3011
Additional practice locations (1)
- 3440 Market St Ste 410Philadelphia, PA 19104-3338Phone: (215) 590-7532Fax: (215) 590-4251
Registry dates
- Enumerated
- 2018-03-15
- Last updated
- 2025-01-07
- Certified
- 2025-01-07
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.