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

Dr. William Eric Hestrup, D.C.

Chiropractor in Saint Charles, IL · enumerated 2005.

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

National Provider Identifier

1659377273

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Registry record

Entity type Individual (Type 1)

Name Dr. William Eric Hestrup

Credential D.C.

Sex Male

Practice address Saint Charles, IL, 60174

Phone (630) 377-3202

Fax (630) 443-3209

Enumeration date Jun 28, 2005

Last updated in NPPES Mar 16, 2010

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

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 038-004354 (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
4293603	Other	IL	AETNA
10639362	Other	-	CAQH CREDENTIALING
130694	Other	-	ACN GROUP
3329275002	Other	IL	CIGNA HEALTHCARE
350023884	Other	IL	RAILROAD MEDICARE
4582044	Other	IL	BLUE CROSS & BLUE SHIELD

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

Where does William Hestrup practice?

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

What is the NPI number for William Hestrup?

The National Provider Identifier (NPI) for William Hestrup is 1659377273, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-03-16.