Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Matthew Thomas Grubb, P.T.

Physical Therapist in Kalispell, MT · enumerated 2011.

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

National Provider Identifier

1619262185

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Registry record

Entity type Individual (Type 1)

Name Mr. Matthew Thomas Grubb

Credential P.T.

Sex Male

Practice address 1234 Whitefish Stage, Kalispell, MT, 59901

Phone (406) 756-7878

Fax (406) 257-7811

Enumeration date Jun 13, 2011

Last updated in NPPES Jun 13, 2011

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 2427PT (MT) Primary

PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation. About the PT credential

Other identifiers

Identifier	Type	State	Issuer
2427PT	Other	MT	LICENSE NUMBER

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Matthew Grubb?

Matthew Grubb is registered in NPPES with the primary taxonomy of Physical Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-06-13.