Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael S Dudas, MD

Pediatrics Physician in Seattle, WA · enumerated 2005.

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

National Provider Identifier

1841291317

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Registry record

Entity type Individual (Type 1)

Name Michael S Dudas

Credential MD

Sex Male

Practice address 2671 Ne 46th St, Seattle, WA, 98105

Phone (206) 525-8000

Fax (206) 525-8070

Enumeration date Aug 9, 2005

Last updated in NPPES Nov 27, 2013

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License MD00034162 (WA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
7166DU	Other	WA	BLUE SHIELD
8219859	Medicaid	WA	-
0039577	Other	WA	LABOR AND INDUSTRIES#
US5038593	Other	WA	AETNA PCP PIN

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Michael Dudas?

Michael Dudas is registered in NPPES with the primary taxonomy of Pediatrics Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-11-27.