NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mrs. Marilyn Louise Giannuzzi, LPN

Licensed Practical Nurse in Lorain, OH · enumerated 2007.

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

National Provider Identifier

1538361597

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Registry record

Entity type Individual (Type 1)
Name Mrs. Marilyn Louise Giannuzzi
Credential LPN
Sex Female
Practice address Lorain, OH, 44052
Enumeration date Jun 1, 2007
Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

164W00000X Licensed Practical Nurse Nursing Service Providers · License PN019264 (OH) Primary
LPN · Licensed Practical Nurse: A nurse providing basic care under the direction of RNs and physicians. About the LPN credential

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

Where does Marilyn Giannuzzi practice?
The practice location on file with NPPES is in Lorain, OH. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Marilyn Giannuzzi?
The National Provider Identifier (NPI) for Marilyn Giannuzzi is 1538361597, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.