Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Curtis R Maslen

Anesthesiology Physician in Renton, WA · enumerated 2006.

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

National Provider Identifier

1780795088

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Registry record

Entity type Individual (Type 1)

Name Curtis R Maslen

Sex Male

Practice address 400 S 43rd St, Renton, WA, 98055

Phone (425) 353-3788

Fax (425) 353-8041

Enumeration date Aug 31, 2006

Last updated in NPPES Nov 19, 2007

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License MD00023933 (WA) Primary

Other identifiers

Identifier	Type	State	Issuer
8202434	Medicaid	WA	-
0054607	Other	WA	LABOR & INDUSTRIES

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.

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Frequently asked questions

How do I verify Curtis Maslen's NPI record?

Cross-check NPI 1780795088 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1780795088 active?

Yes, as of the latest NPPES snapshot, NPI 1780795088 is active (record last updated 2007-11-19).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-11-19.