Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Sandy Samir-Haddad Duke, MSN, FNP-C

Nurse Practitioner in Saginaw, MI · enumerated 2023.

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

National Provider Identifier

1679352371

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Registry record

Entity type Individual (Type 1)

Name Mrs. Sandy Samir-Haddad Duke

Credential MSN, FNP-C

Sex Female

Practice address 5415 Cardinal Square Blvd, Saginaw, MI, 48604

Phone (989) 790-4855

Enumeration date Sep 22, 2023

Last updated in NPPES Sep 22, 2023

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 4704341490 (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.

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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 Sandy Duke?

Sandy Duke is registered in NPPES with the primary taxonomy of Nurse Practitioner. 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 2023-09-22.