NPI Portal NPI Lookup & Verification

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

Margaret Edginton Griffel, A.R.N.P.

Nurse Practitioner in Melbourne, FL · enumerated 2007.

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

National Provider Identifier

1740498377

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Registry record

Entity type Individual (Type 1)
Name Margaret Edginton Griffel
Credential A.R.N.P.
Sex Female
Practice address Melbourne, FL, 32940
Phone (321) 434-9562
Fax (321) 254-4960
Enumeration date May 18, 2007
Last updated in NPPES Apr 15, 2020

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

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License APRN11001924 (FL) Primary

Other identifiers

Identifier Type State Issuer
L7910 Other FL MEDICARE

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 Margaret Griffel?
Margaret Griffel 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 2020-04-15.