Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Heidi Ann Underwood, MS, CCC-SLP

Speech-Language Pathologist in Glens Falls, NY · enumerated 2008.

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

National Provider Identifier

1174787030

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Registry record

Entity type Individual (Type 1)

Name Mrs. Heidi Ann Underwood

Credential MS, CCC-SLP

Sex Female

Practice address 13 Locust Street, Glens Falls, NY, 12801

Phone (518) 761-2025

Fax (518) 761-2035

Enumeration date Jul 10, 2008

Last updated in NPPES Feb 24, 2015

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 0114202 (NY) Primary

Other identifiers

Identifier	Type	State	Issuer
11580239	Other	NY	CAQH

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 Heidi Underwood?

The National Provider Identifier (NPI) for Heidi Underwood is 1174787030, a Type 1 (individual) record in the CMS NPPES registry.

Where does Heidi Underwood practice?

The practice location on file with NPPES is in Glens Falls, NY. 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 2015-02-24.