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

Dr. Arthur John Chatellier III, DC

Chiropractor in Dekalb, IL · enumerated 2006.

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

National Provider Identifier

1649340720

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Registry record

Entity type Individual (Type 1)

Name Dr. Arthur John Chatellier III

Credential DC

Sex Male

Practice address Dekalb, IL, 60115

Phone (815) 748-3102

Fax (815) 748-7433

Enumeration date Nov 8, 2006

Last updated in NPPES Dec 6, 2018

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

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 1154 (LA) Secondary

111N00000X Chiropractor Chiropractic Providers · License A06057 (IA) Secondary

111N00000X Chiropractor Chiropractic Providers · License 038008193 (IL) Primary

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

Other identifiers

Identifier	Type	State	Issuer
038008193	Medicaid	IL	-

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 → Validate an NPI →

Frequently asked questions

What is the NPI number for Arthur Chatellier?

The National Provider Identifier (NPI) for Arthur Chatellier is 1649340720, a Type 1 (individual) record in the CMS NPPES registry.

Where does Arthur Chatellier practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-12-06.