Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gary W. Stewart, M.D.

Surgery Physician in Menomonee Falls, WI · enumerated 2006.

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

National Provider Identifier

1003848458

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Registry record

Entity type Individual (Type 1)

Name Gary W. Stewart

Credential M.D.

Sex Male

Practice address N84w16889 Menomonee Ave, Menomonee Falls, WI, 53051

Phone (262) 251-7500

Fax (262) 251-7128

Enumeration date Jul 7, 2006

Last updated in NPPES Jun 24, 2026

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 24267 (WI) 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
30741300	Medicaid	WI	-
P00451319	Other	WI	RR MEDICARE

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 specialty is Gary Stewart?

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

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-24.