Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Heather Ann Marsh

Speech-Language Pathologist in Altoona, PA · enumerated 2019.

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

National Provider Identifier

1477110088

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Registry record

Entity type Individual (Type 1)

Name Heather Ann Marsh

Sex Female

Practice address 620 Howard Ave, Altoona, PA, 16601

Phone (814) 889-2011

Enumeration date May 20, 2019

Last updated in NPPES Mar 24, 2021

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers Secondary

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License SL015183 (PA) 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

How do I verify Heather Marsh's NPI record?

Cross-check NPI 1477110088 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1477110088 active?

Yes, as of the latest NPPES snapshot, NPI 1477110088 is active (record last updated 2021-03-24).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-24.