Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Nancy Mayer

Q: What is the NPI number for Nancy Mayer?

The National Provider Identifier (NPI) for Nancy Mayer is 1457001042, a Type 1 (individual) record in the CMS NPPES registry.

Student in an Organized Health Care Education/Training Program in Kankakee, IL · enumerated 2022.

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

National Provider Identifier

1457001042

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Registry record

Entity type Individual (Type 1)

Name Nancy Mayer

Sex Female

Practice address 350 N Wall St, Kankakee, IL, 60901

Phone (815) 933-1671

Enumeration date Mar 25, 2022

Last updated in NPPES Jul 1, 2026

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care · License 125.081887 (IL) 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 is the NPI number for Nancy Mayer?

The National Provider Identifier (NPI) for Nancy Mayer is 1457001042, a Type 1 (individual) record in the CMS NPPES registry.

Where does Nancy Mayer practice?

The practice location on file with NPPES is in Kankakee, IL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-01.