Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kathleen S Blair, DO

Internal Medicine Physician in Great Falls, MT · enumerated 2006.

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

National Provider Identifier

1346335189

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Registry record

Entity type Individual (Type 1)

Name Kathleen S Blair

Credential DO

Sex Female

Practice address 1401 25th St S, Great Falls, MT, 59405

Phone (406) 731-8888

Fax (406) 731-8876

Enumeration date Oct 4, 2006

Last updated in NPPES Apr 5, 2024

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 4193 (AZ) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 11368 (MT) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
945363	Medicaid	AZ	-

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 Kathleen Blair practice?

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

What is the NPI number for Kathleen Blair?

The National Provider Identifier (NPI) for Kathleen Blair is 1346335189, 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 2024-04-05.