NPI Portal NPI Lookup & Verification

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

Mrs. Diane Lynn Nesman, M.A. CCC

Speech-Language Pathologist in Bolton, MA · enumerated 2008.

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

National Provider Identifier

1932370558

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Registry record

Entity type Individual (Type 1)
Name Mrs. Diane Lynn Nesman
Credential M.A. CCC
Sex Female
Practice address Bolton, MA, 01740
Phone (978) 779-9864
Enumeration date Mar 24, 2008
Last updated in NPPES Mar 24, 2008

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

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 4364 (MA) 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

What is the NPI number for Diane Nesman?
The National Provider Identifier (NPI) for Diane Nesman is 1932370558, a Type 1 (individual) record in the CMS NPPES registry.
Where does Diane Nesman practice?
The practice location on file with NPPES is in Bolton, MA. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-03-24.