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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Grant Ian Langston

Internal Medicine Physician in Butler, PA · enumerated 2017.

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

National Provider Identifier

1891227427

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Registry record

Entity type Individual (Type 1)
Name Grant Ian Langston
Sex Male
Practice address 1 Hospital Way, Butler, PA, 16001
Phone (724) 285-0823
Fax (724) 285-0879
Enumeration date Apr 2, 2017
Last updated in NPPES Jul 8, 2020

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD469465 (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

Is NPI 1891227427 active?
Yes, as of the latest NPPES snapshot, NPI 1891227427 is active (record last updated 2020-07-08).
How do I verify Grant Langston's NPI record?
Cross-check NPI 1891227427 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-07-08.