Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Melissa Krueger, RDH

Dental Hygienist in Brookfield, WI · enumerated 2007.

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

National Provider Identifier

1891985602

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Registry record

Entity type Individual (Type 1)

Name Mary Melissa Krueger

Credential RDH

Sex Female

Practice address 200 S Executive Dr, Suite 101, Brookfield, WI, 53005

Phone (414) 535-8134

Fax (888) 662-0859

Enumeration date Jul 27, 2007

Last updated in NPPES Oct 19, 2012

Taxonomy & licenses

124Q00000X Dental Hygienist Dental Providers · License 3941-016 (WI) Primary

Other identifiers

Identifier	Type	State	Issuer
33825100	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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Mary Krueger?

Mary Krueger is registered in NPPES with the primary taxonomy of Dental Hygienist. 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 2012-10-19.