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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

TIMOTHY JAMES ZERWIC OTD
NPI 1538699376
Occupational Therapist - Hand in Portland, OR

Active since June 14, 2017
3550 N INTERSTATE AVE, PORTLAND, OR 97227(800) 813-2000 Get Directions Write a Review

NPPES record last updated: August 11, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 11, 2026, Aug 16, 2023, Sep 20, 2019 and 1 more (4 updates tracked since 2017).

About Timothy James Zerwic Otd NPPES

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

TIMOTHY JAMES ZERWIC OTD (NPI 1538699376) is an individual hand provider in Portland, Oregon, licensed in Oregon (379770) and active in the NPI registry since June 2017. He maintains a secondary practice location in Keesler Afb.

NPPES Registry Identity

NPI1538699376
Entity TypeIndividualMale
Primary Taxonomy225XH1200X
Provider Legal NameTIMOTHY JAMES ZERWICCredential: OTD
Location Address3550 N INTERSTATE AVEPortland, OR 97227-1196
Mailing Address500 Ne Multnomah St Ste 100Portland, OR 97232-2031 · (800) 813-2000
Phone(800) 813-2000
Sole ProprietorNo
Enumeration DateJune 14, 2017
Last NPPES UpdateAugust 11, 20264 updates tracked since enumeration
NPPES CertifiedAugust 11, 2026
✔ NPI 1538699376 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOccupational Therapist · HandRespiratory, Developmental, Rehabilitative and Restorative Service Providers
Taxonomy Code225XH1200X
Licenses✔ Licensed in OR · 379770✔ Licensed in TN · 5667
Also ListedOccupational TherapistTaxonomy 225X00000X · License 379770 (OR)
3550 N INTERSTATE AVE, Portland, OR 97227
Open in Google Maps ↗

Secondary Practice Location 1

Location 1301 Fisher StKeesler AFB, MS 39534-2508 · Phone (228) 376-0446

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JAMES PAUL BRYANT LCSW, CADC 3
Counselor
3550 N INTERSTATE AVE
PORTLAND, OR 97227
Multnomah County (503) 964-0000
ALISON D. ARMOUR PSYD
Psychologist (Clinical)
3550 N INTERSTATE AVE
PORTLAND, OR 97227
Multnomah County (503) 813-2000
MS. JESSICA A DUDLEY FNP
Nurse Practitioner (Family)
3550 N INTERSTATE AVE
PORTLAND, OR 97227
Multnomah County (503) 746-1575
DANAYA LEE HALL SWHNP
Nurse Practitioner
3550 N INTERSTATE AVE
PORTLAND, OR 97227
Multnomah County (800) 813-2000
MS. JANET LEE MUCKRIDGE RD LD
Dietitian, Registered
3550 N INTERSTATE AVE, NUTRITION DEPARTMENT EAST INTERSTATE
PORTLAND, OR 97227
Multnomah County (503) 286-6871
KAISER FOUNDATION HEALTH PLAN OF THE NORTHWEST
Pharmacy (Managed Care Organization Pharmacy)
3550 N INTERSTATE AVE
PORTLAND, OR 97227
Multnomah County (866) 279-6122
COURTNEY JOHNSON LCSW
Social Worker (Clinical)
3550 N INTERSTATE AVE
PORTLAND, OR 97227
Multnomah County (800) 813-2000
CHIA NENG VANG RPH
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
3550 N INTERSTATE AVE
PORTLAND, OR 97227
Multnomah County (866) 279-6122

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 Timothy Zerwic's NPI number?

The NPI number for Timothy Zerwic is 1538699376. It was assigned to this individual provider in the NPPES registry on June 14, 2017.

Where is Timothy Zerwic located?

Timothy Zerwic practices at 3550 N Interstate Ave, Portland, OR 97227. The listed phone number is (800) 813-2000.

What is Timothy Zerwic's specialty?

The primary specialty registered for this NPI is Occupational Therapist, specializing in Hand, with taxonomy code 225XH1200X.

When was this NPI record last updated?

The NPPES record for Timothy Zerwic was last updated on August 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.