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

Seth S Williams PSYD LLC

Organization Clinical Psychologist · NPI 1548710148

Seth S Williams PSYD LLC is a Clinical Psychologist in Lake Oswego, Oregon. Licensed in Oregon. Registered with an NPI since 2016.

Licensed in
OR
In the registry since
2016
What do these letters mean?
LLC — Limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

14511 Westlake Dr Ste 120
Lake Oswego, OR 97035-7783
Phone: (503) 752-0122
Fax: (508) 433-1871
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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 2227 (OR)

Record details

NPI number1548710148
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Seth Williams — Owner · (503) 752-0122
NPI enumeratedOctober 6, 2016
Last updated in NPPESOctober 6, 2016
Mailing address6107 Sw Murray Blvd, Beaverton, OR 97008-4421

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