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Washington Gastroenterology Pllc

Clinical Medical Laboratory in Federal Way, WA · enumerated 2006 · authorized official Ralph Katsman, President.

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

National Provider Identifier

1245265826

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Registry record

Entity type Organization (Type 2)
Legal business name Washington Gastroenterology Pllc
Practice address 33915 1st Way S Ste 203, Federal Way, WA, 98003
Phone (253) 838-9839
Fax (253) 661-9077
Enumeration date Jul 11, 2006
Last updated in NPPES May 6, 2021

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories · License 600070783 (WA) Primary

Authorized official

Name Ralph Katsman
Title President
Phone (253) 503-2581

Other identifiers

Identifier Type State Issuer
7099088 Medicaid WA -

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

What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.
What type of organization is Washington Gastroenterology Pllc?
Washington Gastroenterology Pllc is registered in NPPES as a Clinical Medical Laboratory (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-06.