NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Alan Leo Osowski, D.C.

Chiropractor in Fort Smith, AR · enumerated 2014.

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

National Provider Identifier

1356751978

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Registry record

Entity type Individual (Type 1)
Name Dr. Alan Leo Osowski
Credential D.C.
Sex Male
Practice address Fort Smith, AR, 72903
Phone (479) 785-0400
Fax (479) 785-3620
Enumeration date May 5, 2014
Last updated in NPPES May 5, 2014

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 1237 (AR) Primary
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

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

What is the NPI number for Alan Osowski?
The National Provider Identifier (NPI) for Alan Osowski is 1356751978, a Type 1 (individual) record in the CMS NPPES registry.
Where does Alan Osowski practice?
The practice location on file with NPPES is in Fort Smith, AR. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-05-05.