Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dawn Marie Mahaffey, FNP

Family Nurse Practitioner in Granger, IN · enumerated 2017.

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

National Provider Identifier

1033639679

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Registry record

Entity type Individual (Type 1)

Name Dawn Marie Mahaffey

Credential FNP

Sex Female

Practice address 6910 N Main St Unit 4, Granger, IN, 46530

Phone (574) 281-0202

Fax (574) 990-4409

Enumeration date Jun 25, 2017

Last updated in NPPES Feb 15, 2025

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 71007502A (IN) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 71007502A (IN) Primary

FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP credential

Other identifiers

Identifier	Type	State	Issuer
28197241A	Other	IN	RN LICENSE
300086931	Medicaid	IN	-
300006504	Medicaid	IN	-

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

Is NPI 1033639679 active?

Yes, as of the latest NPPES snapshot, NPI 1033639679 is active (record last updated 2025-02-15).

How do I verify Dawn Mahaffey's NPI record?

Cross-check NPI 1033639679 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-15.