NPI Portal NPI Lookup & Verification

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

Mrs. Frances S. Mayer, L.I.C.S.W.

Clinical Social Worker in Nashua, NH · enumerated 2007.

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

National Provider Identifier

1497808075

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Registry record

Entity type Individual (Type 1)
Name Mrs. Frances S. Mayer
Credential L.I.C.S.W.
Sex Female
Practice address Nashua, NH, 03060
Phone (603) 882-4410
Fax (603) 882-1891
Enumeration date Jan 18, 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

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License #75 (NH) Primary
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License #105108 (MA) Secondary

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 Frances Mayer practice?
The practice location on file with NPPES is in Nashua, NH. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Frances Mayer?
The National Provider Identifier (NPI) for Frances Mayer is 1497808075, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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