Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sandra L Harshaw-Irvin, HAD

Hearing Instrument Specialist in Great Falls, MT · enumerated 2009.

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

National Provider Identifier

1720315492

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Registry record

Entity type Individual (Type 1)

Name Sandra L Harshaw-Irvin

Credential HAD

Sex Female

Practice address 725 1st Avenue North, Great Falls, MT, 59401

Phone (406) 727-7269

Fax (406) 452-5145

Enumeration date Nov 17, 2009

Last updated in NPPES Mar 17, 2018

Taxonomy & licenses

237600000X Audiologist-Hearing Aid Fitter Speech, Language and Hearing Service Providers Secondary

237700000X Hearing Instrument Specialist Speech, Language and Hearing Service Providers · License 238 (MT) 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 Sandra Harshaw-Irvin?

The National Provider Identifier (NPI) for Sandra Harshaw-Irvin is 1720315492, a Type 1 (individual) record in the CMS NPPES registry.

Where does Sandra Harshaw-Irvin practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-03-17.