Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Thomas Kowalski, IDHS

Independent Duty Corpsman in Portland, OR · enumerated 2021.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1407527369

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Registry record

Entity type Individual (Type 1)

Name Thomas Kowalski

Credential IDHS

Sex Male

Practice address 6767 N Basin Ave, Portland, OR, 97217

Phone (503) 240-9343

Enumeration date Sep 21, 2021

Last updated in NPPES Oct 18, 2021

Taxonomy & licenses

1710I1002X Independent Duty Corpsman Other Service Providers Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Thomas Kowalski practice?

The practice location on file with NPPES is in Portland, OR. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Thomas Kowalski?

The National Provider Identifier (NPI) for Thomas Kowalski is 1407527369, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-10-18.