James Craig Thornton, D.C.

James Craig Thornton is a Chiropractor provider (Chiropractor) practicing in Arlee, MT, registered in the NPPES registry with NPI 1821146929 since 2007. The credential DC stands for Doctor of Chiropractic. Practices at Valley Chiropractic Inc. (listed at the same practice address in NPPES).

✓ Active NPI ✓ Valid NPI checksum

NPI	1821146929
Entity type	Individual (Type 1)
Name	James Craig Thornton
Credential	D.C.
Sex	Male
Practice address	113 HIGHWAY 93, Arlee, MT, 59821
Phone	4067263333
Enumeration date	2007-01-08
Last updated in NPPES	2007-07-08

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
111N00000X	Chiropractor	Primary	769	MT

DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier	Type	State	Issuer
41091	Other	MT	BLUE CROSS BLUE SHIELD
0160922	Medicaid	MT	—

Copy-ready billing details

Provider: James Thornton, D.C.
NPI: 1821146929
Taxonomy: 111N00000X (Chiropractor)
Address: 113 HIGHWAY 93, Arlee, MT, 59821

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1811045917	Valley Chiropractic Inc.	Organization	Chiropractor	Arlee, MT

Verify this record

Cross-check NPI 1821146929 against the authoritative CMS record: view James Craig Thornton on the official NPPES registry .

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 or validate an NPI number.

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 James Thornton?

James Thornton is registered in NPPES with the primary taxonomy of Chiropractor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.