Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marcie Ann Giammanco, RDH

Dental Hygienist in Detroit, MI · enumerated 2017.

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

National Provider Identifier

1639692320

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Registry record

Entity type Individual (Type 1)

Name Marcie Ann Giammanco

Credential RDH

Sex Female

Practice address 15400 W Mcnichols Rd, Detroit, MI, 48235

Phone (313) 416-6200

Enumeration date Jul 25, 2017

Last updated in NPPES Jul 25, 2017

Taxonomy & licenses

124Q00000X Dental Hygienist Dental Providers · License 2902013987 (MI) Primary

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 Marcie Giammanco?

Marcie Giammanco 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 2017-07-25.