Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Melanie Ann Mailloux, MD

Pediatrics Physician in Milwaukee, WI · enumerated 2006.

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

National Provider Identifier

1780647263

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Registry record

Entity type Individual (Type 1)

Name Melanie Ann Mailloux

Credential MD

Sex Female

Practice address 5433 W Fond Du Lac Ave, Milwaukee, WI, 53216

Phone (414) 277-8900

Fax (414) 277-8939

Enumeration date Apr 7, 2006

Last updated in NPPES Jul 15, 2016

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 0101231620 (VA) Secondary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 53698-20 (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
5903026	Medicaid	NC	-
010217504	Medicaid	VA	-
1780647263	Medicaid	WI	-

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 Melanie Mailloux?

Melanie Mailloux 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 2016-07-15.