NPPES file of Aug 9, 2026

Seth Saturn Williams, PSYD

Clinical Psychologist · Tigard, OR

Seth Saturn Williams, PSYD is a clinical psychologist with a practice address in Tigard, Oregon, and NPI 1851331599, issued on Jun 8, 2006. Check the license (Oregon 2227, as entered in NPPES) with the Oregon board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1851331599
Name
Seth Saturn Williams
Credential
PSYD
Primary taxonomy
Clinical Psychologist 103TC0700X
License numbers
2227 OR
4633 MN
Self-reported in NPPES; status is on the state search
Practice location
12442 SW Scholls Ferry RD, Tigard, OR 97223
Phone
(503) 216-9200
Enumerated
Jun 8, 2006
Record last updated
Aug 1, 2013 (not updated in 13 years: call before relying on the address or phone)
Medicaid ID
729458100 MN
Medicare enrollment
Enrolled (PECOS I20130809000004); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest clinical psychologist records → All 1,143 in Oregon → Look up another NPI →

Also registered at 12442 SW Scholls Ferry RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sandra Antonovic, M.D.Pediatrics Physician1184773319
  2. Evagelia Baros, DOInternal Medicine Physician1003019340
  3. Kathryn Carr, P.T.Physical Therapist1174724736
  4. Rebecca CrowderStudent in an Organized Health Care Education/Training Program1750256236
  5. Kirsten Crowley, MDPediatrics Physician1396838280
  6. Mary Dunlap, ANPAdult Health Nurse Practitioner1629002639

Verify Seth Saturn Williams in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Oregon board licenses this profession
    Search for license 2227    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Oregon license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Seth Saturn Williams among 1,143 clinical psychologist records in Oregon

Seth Saturn Williams, PSYD is one of 1,143 clinical psychologist records with a practice address in Oregon. 16% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 3% of them.

  • NPI issued2006 · 3% of these records are older, 76% newer
  • In a Medicare fileNo · 16% of these records are
  • In the CMS Doctors and Clinicians fileYes · 25% of these records are
  • Graduated2003 · median 2008 among the 287 with a school on file
  • Record last updated2013 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

34 clinical psychologist records list a practice address in Tigard

They are 34 of the 3,081 NPPES records with a practice address in Tigard, and 1,143 clinical psychologist records in Oregon. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,143 in Oregon → Every provider in Tigard → Clinical Psychologist nationwide →

The 8 clinical psychologist records with the nearest ZIP codes

  1. Rodger Bufford, PSYCHOLOGISTTigard, OR 972231811079304
  2. Leslie Carter, PH.D.Tigard, OR 972231235228099
  3. Perry Cotton, PH.D.Portland, OR 972231053476325
  4. Karen Dimalanta, PH.D.Tigard, OR 972231215026406
  5. Larry Halter, PH.D.Tigard, OR 972231295899425
  6. Greta Lyders, PH.D.Tigard, OR 972231629126081
  7. Susan Mersereau, PSY.D.Portland, OR 972231881745578
  8. Linda Nishi-Strattner, PH.D., ABPPTigard, OR 972231851374532

Common questions

What is Seth Saturn Williams, PSYD's NPI number?

Seth Saturn Williams, PSYD's National Provider Identifier (NPI) is 1851331599, issued on Jun 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Seth Saturn Williams, PSYD located?

The NPPES record lists a practice address at 12442 SW Scholls Ferry RD, Tigard, OR, 97223. Phone: (503) 216-9200. Providers update this record themselves, so call before visiting.

How can I verify Seth Saturn Williams, PSYD's license?

NPPES lists Oregon license number 2227, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.