Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

MR. WILLIAM W JEFFREYS JR. MA
NPI 1245139914
Occupational Therapist - Mental Health in Portland, OR

Q: What is William Jeffreys's NPI number?

The NPI number for William Jeffreys is 1245139914. It was assigned to this individual provider in the NPPES registry on November 2, 2026.

Q: What is William Jeffreys's specialty?

The primary specialty registered for this NPI is Occupational Therapist, specializing in Mental Health, with taxonomy code 225XM0800X.

Q: When was this NPI record last updated?

The NPPES record for William Jeffreys was last updated on November 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since November 02, 2026

9810 SW 34TH PL APT 6, PORTLAND, OR 97219(503) 705-0736 Get Directions Write a Review

NPPES record added: November 2, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

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About Mr. William W Jeffreys Jr. Ma NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. WILLIAM W JEFFREYS JR. MA (NPI 1245139914) is an individual mental health provider in Portland, Oregon, licensed in Washington (MHCA.MC.70040585) and active in the NPI registry since November 2026.

NPPES Registry Identity

NPI1245139914

Entity TypeIndividualMale

Primary Taxonomy225XM0800X

Provider Legal NameMR. WILLIAM W JEFFREYS JR.Credential: MA

Location Address9810 SW 34TH PL APT 6Portland, OR 97219-6260

Mailing Address9810 Sw 34th Pl Apt 6Portland, OR 97219-6260 · (503) 705-0736

Phone(503) 705-0736

Sole ProprietorYes

Enumeration DateNovember 2, 2026

NPPES CertifiedNovember 1, 2026

✔ NPI 1245139914 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOccupational Therapist · Mental HealthRespiratory, Developmental, Rehabilitative and Restorative Service Providers

Taxonomy Code225XM0800X

License✔ Licensed in WA · MHCA.MC.70040585

Definition

Occupational therapists provide treatment for people recovering from a mental or physical illness to regain their independence and stability and to engage in normal daily occupations (work, home, family life, school, leisure). Occupational therapists provide particular emphasis on interventions that result in improved quality of life and decrease hospitalization.

9810 SW 34TH PL APT 6, Portland, OR 97219

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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Jeffreys's NPI number?

The NPI number for William Jeffreys is 1245139914. It was assigned to this individual provider in the NPPES registry on November 2, 2026.

Where is William Jeffreys located?

William Jeffreys practices at 9810 SW 34th Pl Apt 6, Portland, OR 97219. The listed phone number is (503) 705-0736.

What is William Jeffreys's specialty?

The primary specialty registered for this NPI is Occupational Therapist, specializing in Mental Health, with taxonomy code 225XM0800X.

When was this NPI record last updated?

The NPPES record for William Jeffreys was last updated on November 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.